KHALIL J DIAB MD
NPI 1528230109
Internal Medicine - Pulmonary Disease in Washington, DC

NPI Status: Active since March 24, 2008

Contact Information

2150 PENNSYLVANIA AVE NW
WASHINGTON, DC
ZIP 20037
Phone: (202) 741-3333
Fax: (202) 741-2238

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  • Individual
  • Male
  • Years of Experience 24
  • Internal Medicine
  • Pulmonary Disease
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About KHALIL DIAB

This page provides the complete NPI Profile along with additional information for Khalil Diab, an internist established in Washington, District Of Columbia with a medical specialization in Internal Medicine, focusing in pulmonary disease and more than 24 years of experience. The healthcare provider is registered in the NPI registry with number 1528230109 assigned on March 2008. The practitioner's primary taxonomy code is 207RP1001X with license number 01062521A (IN). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1528230109
Provider Name
KHALIL J DIAB MD
Gender
Male
Entity Type
Individual
Location Address
2150 PENNSYLVANIA AVE NW WASHINGTON, DC 20037
Location Phone
(202) 741-3333
Location Fax
(202) 741-2238
Mailing Address
2150 PENNSYLVANIA AVE NW WASHINGTON, DC 20037
Mailing Phone
(202) 741-3333
Mailing Fax
(202) 741-2238
Medical School Name
OTHER
Graduation Year
2002
Is Sole Proprietor?
No
Enumeration Date
03-24-2008
Last Update Date
06-09-2020
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An internist like Khalil Diab is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Pulmonary Disease

Taxonomy Code
207RP1001X
Type
Allopathic & Osteopathic Physicians
License No.
01062521A
License State
IN
Taxonomy Description
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207RC0200XAllopathic & Osteopathic Physicians

Internal Medicine
Critical Care Medicine

01062521A (IN)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
200909310MEDICAID (05)IN 

Medicare Participation & PECOS Enrollment Status

Khalil Diab is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Khalil Diab is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 7719066497

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20201014000694

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE000N)

    Nebulizer, with compressor (HCPCS:E0570)

    2 DME suppliers used 28 Medicare Claims 28 Services Paid

  • DME-Other DME (DE001N)

    Continuous positive airway pressure (cpap) device (HCPCS:E0601)

    4 DME suppliers used 18 Medicare Claims 18 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    3 DME suppliers used 15 Medicare Claims 15 Services Paid

  • DME-Other DME (DE000N)

    Pharmacy dispensing fee for inhalation drug(s); per 30 days (HCPCS:Q0513)

    4 DME suppliers used 16 Medicare Claims 16 Services Paid

Drugs Administered Through DME

  • DME-Drugs Administered Through DME (DG006N)

    Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg (HCPCS:J7613)

    2 DME suppliers used 14 Medicare Claims 2347 Services Paid

  • DME-Drugs Administered Through DME (DG006N)

    Ipratropium bromide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per milligram (HCPCS:J7644)

    1 DME suppliers used 11 Medicare Claims 562 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Biopsy of lobe of lung using an endoscope, 1 lobe

A lung biopsy is a procedure where a small piece of lung tissue is taken for testing. An endoscope, a flexible tube with a light and camera, is used. It's inserted through the mouth or nose, down the windpipe, and into one lobe of the lung.

This service was performed 30 times for 28 patients

Critical care, first 30-74 minutes

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

This service was performed 174 times for 81 patients

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 18 times for 18 patients

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 174 times for 98 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 58 times for 49 patients

Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes

This procedure involves a special tube with a camera (endoscope) entering your lung airways. Guided by ultrasound, it collects samples from 1-2 lymph nodes. This helps doctors understand and diagnose potential issues in your lungs.

This service was performed 13 times for 13 patients

Exam of lung airways using an endoscope

This procedure, known as a bronchoscopy, involves a doctor examining your lung airways with a thin tube called an endoscope. It helps detect any issues in your lungs or airways, such as infections or blockages. It's a safe, routine procedure.

This service was performed 17 times for 16 patients

Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound

This procedure involves using a specialized instrument, called an endoscope, to examine the lung airways. An ultrasound is also used to get a clearer image of any growths. If necessary, the doctor can perform procedures to diagnose or treat these growths.

This service was performed 20 times for 19 patients

Follow-up hospital inpatient care per day, typically 35 minutes

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

This service was performed 209 times for 87 patients

Hospital discharge day management, more than 30 minutes

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

This service was performed 28 times for 25 patients

Initial hospital inpatient care per day, typically 70 minutes

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

This service was performed 12 times for 12 patients

Irrigation and suction of lung airways to obtain cells using an endoscope

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

This service was performed 37 times for 34 patients

Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope

A needle biopsy of windpipe cartilage, airway, or lung involves using a thin, flexible tube with a camera (endoscope) to access and collect tissue samples. This procedure helps doctors diagnose lung conditions or diseases effectively and safely.

This service was performed 19 times for 17 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 45 times for 45 patients

Smoking and tobacco use intensive counseling, 4-10 minutes

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

This service was performed 14 times for 11 patients

Smoking and tobacco use intensive counseling, more than 10 minutes

This service involves an in-depth discussion about the risks of smoking and tobacco use, spanning over 10 minutes. It provides personalized strategies to quit smoking, including coping techniques for withdrawal symptoms and triggers. The goal is to support your journey towards a healthier lifestyle.

This service was performed 17 times for 13 patients

Test for exercise-induced lung stress

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

This service was performed 15 times for 15 patients

Test to determine lung volumes using gas dilution or washout

This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.

This service was performed 58 times for 58 patients

Test to determine lung volumes using sensors

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

This service was performed 23 times for 23 patients

Test to examine how well the lungs exchange gases

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

This service was performed 82 times for 82 patients

Test to measure expiratory airflow and volume changes before and after medication administration

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

This service was performed 54 times for 54 patients

Test to measure largest amount of air breathed in an out

This test, called spirometry, measures your lung capacity. It involves taking a deep breath and then exhaling as forcefully as possible into a machine. The results help assess how well your lungs function.

This service was performed 25 times for 25 patients

Test to measure rate of airflow

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

This service was performed 36 times for 36 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $36.96 for a new patient copayment and $28.43 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 20037 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $147.85
  • Minimum New Patient Price $65.18
  • Maximum New Patient Price $194.86
  • Average New Patient Copayment $36.96
  • Minimum New Patient Copayment $16.29
  • Maximum New Patient Copayment $48.71

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $113.72
  • Minimum Established Patient Price $21.4
  • Maximum Established Patient Price $158.88
  • Average Established Patient Copayment $28.43
  • Minimum Established Patient Copayment $5.35
  • Maximum Established Patient Copayment $39.72

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1528230109
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
254843010
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 5 + 4 + 8 + 4 + 3 + 0 + 1 + 0 + 24 = 51
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 51 = 99

The NPI number 1528230109 is valid because the calculated check digit 9 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1245239276 DENISE JOHNSTONE MSN, CRNP
Individual
Nurse Practitioner (Family)2150 PENNSYLVANIA AVE NW SUITE 10-412
WASHINGTON, DC 20037
(202) 741-3398
1275524985 JANINE VAN LANCKER M.D.
Individual
Allergy & Immunology2150 PENNSYLVANIA AVE NW SUITE G-402
WASHINGTON, DC 20037
(202) 741-2771
1467439794DR. ROBERT SHESSER MD
Individual
Emergency Medicine2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
(202) 741-2911
1659350197DR. KENYON KEITH KRAMER M.D.
Individual
Ophthalmology2150 PENNSYLVANIA AVE NW ST 2A
WASHINGTON, DC 20037
(202) 741-2815
1396717088DR. CHARLES JOHN MACRI MD
Individual
Obstetrics & Gynecology (Maternal & Fetal Medicine)2150 PENNSYLVANIA AVE NW STE 10-409A
WASHINGTON, DC 20037
(202) 741-3398
1548232200DR. JOHN HENRY GROSSMAN III MD
Individual
Obstetrics & Gynecology2150 PENNSYLVANIA AVE NW MEDICAL FACULTY ASSOCIATES INC
WASHINGTON, DC 20037
(202) 741-2500
1477526879DR. NANCY D GABA MD
Individual
Obstetrics & Gynecology2150 PENNSYLVANIA AVE NW MEDICAL FACULTY ASSOCIATES INC
WASHINGTON, DC 20037
(202) 741-2500
1801869896 BRUCE ABELL MD
Individual
Surgery2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
(202) 741-3188
1063485142DR. SUSANNE BATHGATE MD
Individual
Obstetrics & Gynecology (Maternal & Fetal Medicine)2150 PENNSYLVANIA AVE NW MEDICAL FACULTY ASSOCIATES INC
WASHINGTON, DC 20037
(202) 741-2500
1942273941 JAMES AHLGREN MD
Individual
Internal Medicine (Hematology & Oncology)2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
(202) 741-2210
1083688410DR. PAUL RICHARD GINDOFF MD
Individual
Obstetrics & Gynecology2150 PENNSYLVANIA AVE NW 6A
WASHINGTON, DC 20037
(202) 741-2520
1831163286DR. PENDLETON EDMUND ALEXANDER MD
Individual
Thoracic Surgery (Cardiothoracic Vascular Surgery)2150 PENNSYLVANIA AVE NW 6B
WASHINGTON, DC 20037
(202) 741-3220
1447224308MS. BARRIE M SEIDMAN MSW
Individual
Social Worker2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
(202) 741-2900
1902870777DR. LYNNE M GABY MD
Individual
Psychiatry & Neurology (Psychiatry)2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
(202) 741-2900
1073587846DR. DAVID REISS MD
Individual
Psychiatry & Neurology (Psychiatry)2150 PENNSYLVANIA AVE NW 8TH FLOOR
WASHINGTON, DC 20037
(202) 741-2900
1306811047DR. JULIA BESS FRANK MD
Individual
Psychiatry & Neurology (Pain Medicine)2150 PENNSYLVANIA AVE NW 8TH FLOOR
WASHINGTON, DC 20037
(202) 741-2900
1659347664DR. JAMES D MICHELSON MD
Individual
Orthopaedic Surgery2150 PENNSYLVANIA AVE NW 7TH FLOOR
WASHINGTON, DC 20037
(202) 741-3300
1295702082 FRANCISCO MANUEL IRIANNI MD
Individual
Obstetrics & Gynecology (Reproductive Endocrinology)2150 PENNSYLVANIA AVE NW 6A
WASHINGTON, DC 20037
(202) 741-2520
1457328783DR. ANTHONY J. CAPUTY MD
Individual
Neurological Surgery2150 PENNSYLVANIA AVE NW 7TH FLOOR
WASHINGTON, DC 20037
(202) 741-2750
1558339531MS. MARGARET FIORE NP
Individual
Nurse Practitioner2150 PENNSYLVANIA AVE NW 7TH FLOOR
WASHINGTON, DC 20037
(202) 741-2750

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1528230109, enumerated in the NPI registry as an "individual" on March 24, 2008

The provider is located at 2150 Pennsylvania Ave Nw Washington, Dc 20037 and the phone number is (202) 741-3333

The provider's speciality is Internal Medicine with taxonomy code 207RP1001X with a focus in Pulmonary Disease

The provider has more than 24 years of experience.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $147.85 with an average copayment of $36.96 for new patient appointments. Established patients should expect a typical charge of $113.72 and an average copayment of 28.43. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Biopsy of lobe of lung using an endoscope, 1 lobe, Critical care, first 30-74 minutes, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Established patient office or other outpatient visit, 40-54 minutes, Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes, Exam of lung airways using an endoscope, Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound, Follow-up hospital inpatient care per day, typically 35 minutes, Hospital discharge day management, more than 30 minutes, Initial hospital inpatient care per day, typically 70 minutes, Irrigation and suction of lung airways to obtain cells using an endoscope, Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope, New patient office or other outpatient visit, 60-74 minutes, Smoking and tobacco use intensive counseling, 4-10 minutes, Smoking and tobacco use intensive counseling, more than 10 minutes, Test for exercise-induced lung stress, Test to determine lung volumes using gas dilution or washout, Test to determine lung volumes using sensors, Test to examine how well the lungs exchange gases, Test to measure expiratory airflow and volume changes before and after medication administration, Test to measure largest amount of air breathed in an out and Test to measure rate of airflow.

This NPI record was last updated on March 24, 2008. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.