DR. SYED SAIF ZAHIR D.O.
NPI 1649666900
Internal Medicine in Olympia Fields, IL

NPI Status: Active since April 13, 2015

Contact Information

20201 CRAWFORD AVE
OLYMPIA FIELDS, IL
ZIP 60461
Phone: (844) 740-4445
Fax: (708) 679-2161

Get Directions Reviews

  • Individual
  • Male
  • Internal Medicine
  • Accepts Insurance
  • PECOS Enrolled

About SYED ZAHIR

This page provides the complete NPI Profile along with additional information for Syed Zahir, an internist established in Olympia Fields, Illinois with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1649666900 assigned on April 2015. The practitioner's primary taxonomy code is 207R00000X with license number 036148353 (IL). The provider is registered as an individual and his NPI record was last updated June 2025.

NPI
1649666900
Provider Name
DR. SYED SAIF ZAHIR D.O.
Other Name
SAIF SYED ZAHIR DO
Other Name Type
Former Name (1)
Gender
Male
Entity Type
Individual
Location Address
20201 CRAWFORD AVE OLYMPIA FIELDS, IL 60461
Location Phone
(844) 740-4445
Location Fax
(708) 679-2161
Mailing Address
35318 EAGLE WAY CHICAGO, IL 60678
Mailing Phone
(317) 528-4800
Is Sole Proprietor?
Yes
Enumeration Date
04-13-2015
Last Update Date
06-23-2025
Code Navigator

An internist like Syed Zahir 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.

Location Map

Secondary Locations

  • 1 Ingalls Dr
    Harvey, IL 60426
    (708) 333-2300
  • 405 W Jackson St
    Carbondale, IL 62901
    (618) 549-0721
  • 2 S Hospital Dr
    Murphysboro, IL 62966
    (618) 684-3156
  • 201 S 14th St
    Herrin, IL 62948
    (618) 942-2171
  • 911 Bypass Rd Bldg A
    Pikeville, KY 41501
    (606) 218-3500
  • 1000 Health Center Dr
    Mattoon, IL 61938
    (217) 238-4325
  • 4500 Memorial Dr
    Belleville, IL 62226
    (618) 257-6220

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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
036148353
License State
IL
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

04430 (KY)
2208M00000XAllopathic & Osteopathic Physicians

Hospitalist

036148353 (IL)
3208M00000XAllopathic & Osteopathic Physicians

Hospitalist

04430 (KY)

Insurance Plans Accepted

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

  • Blue Choice Preferred Bronze PPO? 201 - PPO
  • Blue Choice Preferred Bronze PPO? 701 - PPO
  • Blue Choice Preferred Bronze PPO? Standard - Select Rx Copays - PPO
  • Blue Choice Preferred Gold PPO? 204 - PPO
  • Blue Choice Preferred Gold PPO? 901 - PPO
  • Blue Choice Preferred Gold PPO? Standard - Rx Copays - PPO
  • Blue Choice Preferred Security PPO? 200 - PPO
  • Blue Choice Preferred Silver PPO? 203 - PPO
  • Blue Choice Preferred Silver PPO? 801 - PPO
  • Blue Choice Preferred Silver PPO? Standard - Select Rx Copays - PPO

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
7100550130MEDICAID (05)KY 

Medicare Participation & PECOS Enrollment Status

Syed Zahir 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) and a Home Health Agency (HHA).

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

  • 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: No

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-Oxygen and Supplies (DC000N)

    Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)

    3 DME suppliers used 16 Medicare Claims 16 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)

    4 DME suppliers used 31 Medicare Claims 31 Services Paid

  • DME-Wheelchairs (DD000N)

    Standard wheelchair (HCPCS:K0001)

    3 DME suppliers used 25 Medicare Claims 25 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.

Follow-up hospital inpatient care per day, typically 25 minutes

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

This service was performed 86 times for 32 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 258 times for 72 patients

Follow-up observation care per day, typically 25 minutes

Follow-up observation care is a daily service where your health progress is monitored for about 25 minutes. It's a routine check to ensure your treatment is effective and to adjust if necessary. It's a crucial part of your healthcare journey.

This service was performed 19 times for 12 patients

Follow-up observation care per day, typically 35 minutes

Follow-up observation care is a daily check-up service that lasts about 35 minutes. It involves monitoring your health progress after a treatment or procedure. The care team assesses your recovery and addresses any concerns or questions you may have.

This service was performed 33 times for 18 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 53 times for 52 patients

Hospital observation care on day of discharge

Hospital observation care on the day of discharge involves monitoring your health status to ensure stability before you leave. This includes assessing vital signs, response to treatment, and readiness for home care or rehabilitation.

This service was performed 16 times for 16 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 39 times for 39 patients

Physician Visit Costs

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 60461 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $138.86
  • Minimum New Patient Price $60.08
  • Maximum New Patient Price $183.39
  • Average New Patient Copayment $34.71
  • Minimum New Patient Copayment $15.02
  • Maximum New Patient Copayment $45.84

Established Patients Visit Costs *

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

  • Average Established Patient Price $105.7
  • Minimum Established Patient Price $18.97
  • Maximum Established Patient Price $148.12
  • Average Established Patient Copayment $26.42
  • Minimum Established Patient Copayment $4.74
  • Maximum Established Patient Copayment $37.03

* 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.
1649666900
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
26891261290
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 6 + 8 + 9 + 1 + 2 + 6 + 1 + 2 + 9 + 0 + 24 = 70
Step 3: because the number obtained in step 2 ends in zero, the check digit is zero.
0

The NPI number 1649666900 is valid because the calculated check digit 0 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
1124021266ALVERNO LAKESIDE CORPORATION
Organization
Ambulance20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 756-1200
1851384754 KALISHA ASHARA HILL MD
Individual
Pathology (Anatomic Pathology & Clinical Pathology)20201 CRAWFORD AVE ST JAMES HOSPITAL OLYMPIA FIELDS CAMPUS
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1295728194 JOHN NICHOLAS KASIMOS DO
Individual
Pathology (Anatomic Pathology & Clinical Pathology)20201 CRAWFORD AVE ST JAMES HOSPITAL OLYMPIA FIELDS CAMPUS
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1477524155MR. QUINN M BIGGS MPH
Individual
Psychologist (Health Service)20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1942279252 MARTHA A KELLEY D.O.
Individual
Emergency Medicine20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1790732949DR. BRIAN REES HAAG M.D.
Individual
Emergency Medicine20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1023059748 SAMUEL L MACAGBA JR. MD
Individual
Anesthesiology20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 503-3857
1972547248EMERGENCY CARE & HEALLTH ORGANIZATION, LTD
Organization
Emergency Medicine20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1386674216 MANUEL MOLINA SANCHEZ MD
Individual
Specialist20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 503-3857
1699887554DR. LYNN ANGELA WRIGHT M.D.
Individual
Anesthesiology20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 503-3857
1487706149DR. LITO FAJARDO M.D.
Individual
Anesthesiology20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1639222557 MARYELLEN KILKENNY CRNA
Individual
Registered Nurse20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 503-3857
1245384130 ERIN JENNINGS LUGOWSKI CRNA
Individual
Registered Nurse20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 503-3857
1306990395 LINDA DEE CRNA
Individual
Registered Nurse20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 503-3857
1194933846 RENEE PEART MD
Individual
Anesthesiology20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 503-3857
1528259389MRS. KATHLEEN O'SULLIVAN NILES CRNA
Individual
Nurse Anesthetist, Certified Registered20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1659564342DR. CHRISTINE ANNE PATTE D.O.
Individual
Emergency Medicine20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1164672572DR. JAMES VAN SIATRAS D.O.
Individual
Surgery20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1538308564DR. NOAH THOMAS LEE D.O.
Individual
Emergency Medicine20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000
1396984324 APRIL LYNN BRILL D.O.
Individual
Emergency Medicine20201 CRAWFORD AVE
OLYMPIA FIELDS, IL 60461
(708) 747-4000

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649666900, enumerated in the NPI registry as an "individual" on April 13, 2015

The provider is located at 20201 Crawford Ave Olympia Fields, Il 60461 and the phone number is (844) 740-4445

The provider's speciality is Internal Medicine with taxonomy code 207R00000X

The provider might be accepting Accepts: Blue Cross and Blue Shield of Illinois, Medicare. 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) and a Home Health Agency (HHA).

Medicare beneficiaries should expect a typical cost of $138.86 with an average copayment of $34.71 for new patient appointments. Established patients should expect a typical charge of $105.7 and an average copayment of 26.42. 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: Follow-up hospital inpatient care per day, typically 25 minutes, Follow-up hospital inpatient care per day, typically 35 minutes, Follow-up observation care per day, typically 25 minutes, Follow-up observation care per day, typically 35 minutes, Hospital discharge day management, more than 30 minutes, Hospital observation care on day of discharge and Initial hospital inpatient care per day, typically 70 minutes.

This NPI record was last updated on April 13, 2015. 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].
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