NPPES file of Aug 9, 2026

Mia W. Marcus, M.D.

Internal Medicine Physician · Washington, DC

Mia W. Marcus, M.D. is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1619933025, issued on Apr 25, 2006. Check the license (District of Columbia MD036476, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619933025
Name
Mia W. Marcus
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD036476 DC
220494 MA
Self-reported in NPPES; status is on the state search
Practice location
2150 Pennsylvania Ave NW, Washington, DC 20037
Phone
(202) 741-2222
Enumerated
Apr 25, 2006
Record last updated
Dec 28, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(202) 741-2241
Medicare enrollment
Enrolled (PECOS I20080307000581); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 2001
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2150 Pennsylvania Ave NW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ahmad AalamStudent in an Organized Health Care Education/Training Program1851786909
  2. Nawaf Abaalkhail, MDCritical Care Medicine (Internal Medicine) Physician1104246958
  3. Theophilus Abah, MDAnesthesiology Physician1245810696
  4. Yoosif Abdalla, MDNephrology Physician1679851760
  5. Rim Abdallah, M.D.Student in an Organized Health Care Education/Training Program1962896886
  6. Rami AbdulbakiAnatomic Pathology & Clinical Pathology Physician1851950109

Verify Mia W. Marcus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD036476
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the District of Columbia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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35% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,064 Medicare Part D claims for 220 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 47 claims were for opioids.

  1. Mia Marcus2,064
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium175 claims
  2. Metformin Hcl97 claims
  3. Amlodipine Besylate93 claims
  4. Losartan Potassium81 claims
  5. Metoprolol Succinate50 claims
  6. Pantoprazole Sodium49 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Medical Faculty Associates, IncWashington, DC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mia W. Marcus among 901 internal medicine physician records in District of Columbia

Mia W. Marcus, M.D. is one of 901 internal medicine physician records with a practice address in District of Columbia. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 67% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2001 · median 2008 among the 513 with a school on file
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

891 internal medicine physician records list a practice address in Washington

They are 891 of the 45,857 NPPES records with a practice address in Washington, and 901 internal medicine physician records in District of Columbia.

The 8 internal medicine physician records with the nearest ZIP codes

  1. April Barbour, MDWashington, DC 200371043279052
  2. Benjamin Blatt, MDWashington, DC 200371578525481
  3. Elena Boley, MDWashington, DC 200371457310344
  4. Marie Borum, MDWashington, DC 200371487616397
  5. Ryan Bosch, MDWashington, DC 200371861451866
  6. Samia Burton, MDWashington, DC 200371578540662
  7. Letitia Carlson, MDWashington, DC 200371528021789
  8. Jehan El-Bayoumi, MDWashington, DC 200371588623409

Common questions

What is Mia W. Marcus, M.D.'s NPI number?

Mia W. Marcus, M.D.'s National Provider Identifier (NPI) is 1619933025, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mia W. Marcus, M.D. located?

The NPPES record lists a practice address at 2150 Pennsylvania Ave NW, Washington, DC, 20037. Phone: (202) 741-2222. Providers update this record themselves, so call before visiting.

How can I verify Mia W. Marcus, M.D.'s license?

NPPES lists District of Columbia license number MD036476, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mia W. Marcus, M.D. prescribe under Medicare Part D?

In 2024, Mia W. Marcus, M.D. had 2,064 Medicare Part D claims for 220 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.