STEVEN PETER MARSHAK M.D.
NPI 1730110305
Internal Medicine in Rockville, MD
NPI Status: Active since July 05, 2006
Contact Information
9900 BELWARD CAMPUS DRIVE
SUITE 325
ROCKVILLE, MD
ZIP 20850
Phone: (301) 917-2185
Fax: (301) 917-2185
- Individual
- Male
- Years of Experience 31
- Internal Medicine
- Accepts Medicare Approved Payment
- PECOS Enrolled
- Medicare Quality Reporting
About STEVEN MARSHAK
This page provides the complete NPI Profile along with additional information for Steven Marshak, an internist established in Rockville, Maryland with a medical specialization in Internal Medicine and more than 31 years of experience. He graduated from Georgetown University School Of Medicine in 1995. The healthcare provider is registered in the NPI registry with number 1730110305 assigned on July 2006. The practitioner's primary taxonomy code is 207R00000X with license number D0068171 (MD). The provider is registered as an individual and his NPI record was last updated 15 years ago.
- NPI
- 1730110305
- Provider Name
- STEVEN PETER MARSHAK M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 9900 BELWARD CAMPUS DRIVE SUITE 325 ROCKVILLE, MD 20850
- Location Phone
- (301) 917-2185
- Location Fax
- (301) 917-2185
- Mailing Address
- 9900 BELWARD CAMPUS DRIVE SUITE 325 ROCKVILLE, MD 20850
- Mailing Phone
- (301) 917-2185
- Mailing Fax
- (301) 917-2185
- Medical School Name
- GEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
- Graduation Year
- 1995
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-05-2006
- Last Update Date
- 06-10-2010
- Code Navigator
An internist like Steven Marshak 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
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.
- D0068171
- License State
- MD
- 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) |
|---|---|---|---|---|
| 1 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | 0101055239 (VA) |
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 |
|---|---|---|---|
| G84855 | MEDICARE UPIN (02) | ||
| G02020N02 | MEDICARE PIN (08) | ||
| 00W411N10 | MEDICARE PIN (08) | ||
| P00234312 | MEDICARE PIN (08) | ||
| G84855 | MEDICARE UPIN (02) | VA |
Medicare Participation & PECOS Enrollment Status
Steven Marshak 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.
Steven Marshak 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: 6709879703
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: I20040406000586, I20140612000036
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 (DE017N)
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)
14 DME suppliers used 40 Medicare Claims 102 Services Paid
DME-Medical/Surgical Supplies (DA000N)
Lancets, per box of 100 (HCPCS:A4259)
6 DME suppliers used 14 Medicare Claims 17 Services Paid
DME-Other DME (DE001N)
Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)
3 DME suppliers used 11 Medicare Claims 11 Services Paid
DME-Other DME (DE001N)
Filter, disposable, used with positive airway pressure device (HCPCS:A7038)
4 DME suppliers used 15 Medicare Claims 90 Services Paid
DME-Other DME (DE017N)
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service (HCPCS:K0553)
2 DME suppliers used 12 Medicare Claims 12 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.
Administration of influenza virus vaccine
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Fee covid-19 vac 14 res
Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
Insertion of needle into vein for collection of blood sample
Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 100 mcg/0.5ml dosage; first dose
Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 30 mcg/0.3ml dosage, diluent reconstituted; first dose
New patient office or other outpatient visit, 30-44 minutes
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
Transitional care management services for problem of moderate complexity
Urinalysis, manual test
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
This service was performed 76 times for 76 patientsAn annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
This service was performed 306 times for 306 patientsThis 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 182 times for 133 patientsThis 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 375 times for 242 patientsThe "Fee covid-19 vac 14 res" refers to a charge for a specific service related to the COVID-19 vaccine. This could be for administering the vaccine or related care. It's crucial to get vaccinated to protect against the virus. The fee ensures quality service.
This service was performed 13 times for 13 patientsThe quadrivalent influenza vaccine is a flu shot that protects against four different flu viruses. Derived from cell cultures, it is free of preservatives and antibiotics. It's a safe and effective way to reduce your risk of getting the flu.
This service was performed 76 times for 76 patientsAn Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.
This service was performed 25 times for 25 patientsThis procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
This service was performed 352 times for 260 patientsThis is a COVID-19 vaccine injection, given into a muscle. It's the first dose of a two-dose series. The vaccine, made from mRNA technology, targets the virus's spike protein. It's free of preservatives and each dose contains 100 mcg in a 0.5ml solution.
This service was performed 21 times for 17 patientsThis is your first dose of a COVID-19 vaccine. It's a shot given in the muscle, usually the arm. The vaccine uses mRNA technology to help your body recognize and fight the virus. It's preservative free and contains 30 mcg in a 0.3ml dose.
This service was performed 22 times for 21 patientsThis service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
This service was performed 12 times for 12 patientsAn electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
This service was performed 40 times for 39 patientsTransitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.
This service was performed 16 times for 15 patientsA urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
This service was performed 15 times for 12 patientsPhysician 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 20850 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.
Quality Reporting
The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.
| Quality Measure | Performance | Number of Patients |
|---|---|---|
| e-Prescribing | 96% | 6220 |
| At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology. | ||
| Health Information Exchange | 89% | 262 |
| The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for at least one transition of care or referral. | ||
| Immunization Registry Reporting | Yes | N/A |
| The MIPS eligible clinician is in active engagement with a public health agency to submit immunization data. | ||
| Implementation of medication management practice improvements | Yes | N/A |
| Manage medications to maximize efficiency, effectiveness and safety that could include one or more of the following: Reconcile and coordinate medications and provide medication management across transitions of care settings and eligible clinicians or groups; Integrate a pharmacist into the care team; and/or Conduct periodic, structured medication reviews. | ||
| Measurement and Improvement at the Practice and Panel Level | Yes | N/A |
| Measure and improve quality at the practice and panel level, such as the American Board of Orthopaedic Surgery (ABOS) Physician Scorecards, that could include one or more of the following: • Regularly review measures of quality, utilization, patient satisfaction and other measures that may be useful at the practice level and at the level of the care team or MIPS eligible clinician or group (panel); and/or • Use relevant data sources to create benchmarks and goals for performance at the practice level and panel level. | ||
| Medication Reconciliation | 98% | 623 |
| The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician. | ||
| Patient-Specific Education | 34% | 2783 |
| The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician. | ||
| Provide Patient Access | 99% | 2707 |
| At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold certain information. | ||
| Secure Messaging | 83% | 2707 |
| For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure message sent by the patient (or the patient-authorized representative) during the performance period. | ||
| Security Risk Analysis | Yes | N/A |
| Conduct or review a security risk analysis in accordance with the requirements in 45 CFR 164.308(a)(1), including addressing the security (to include encryption) of ePHI data created or maintained by certified EHR technology in accordance with requirements in 45 CFR164.312(a)(2)(iv) and 45 CFR 164.306(d)(3), and implement security updates as necessary and correct identified security deficiencies as part of the MIPS eligible clinician's risk management process. | ||
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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. | |||||||||
| 1 | 7 | 3 | 0 | 1 | 1 | 0 | 3 | 0 | 5 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 7 | 6 | 0 | 2 | 1 | 0 | 3 | 0 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 7 + 6 + 0 + 2 + 1 + 0 + 3 + 0 + 24 = 45 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 50 - 45 = 5 | 5 | ||||||||
The NPI number 1730110305 is valid because the calculated check digit 5 using the Luhn validation algorithm matches the last digit of the original NPI number.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1730110305, enumerated in the NPI registry as an "individual" on July 05, 2006
The provider is located at 9900 Belward Campus Drive Suite 325 Rockville, Md 20850 and the phone number is (301) 917-2185
The provider's speciality is Internal Medicine with taxonomy code 207R00000X
The provider has more than 31 years of experience. He graduated from Georgetown University School Of Medicine in 1995.
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: Administration of influenza virus vaccine, Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Fee covid-19 vac 14 res, Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free, Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment, Insertion of needle into vein for collection of blood sample, Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 100 mcg/0.5ml dosage; first dose, Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 30 mcg/0.3ml dosage, diluent reconstituted; first dose, New patient office or other outpatient visit, 30-44 minutes, Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report, Transitional care management services for problem of moderate complexity and Urinalysis, manual test.
This NPI record was last updated on July 05, 2006. 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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