NPPES file of Aug 9, 2026

Robert Lee Marcus, M.D.

Rheumatology Physician · Baltimore, MD

Robert Lee Marcus, M.D. is a rheumatology physician with a practice address in Baltimore, Maryland, and NPI 1033329586, issued on May 23, 2007. Check the license (Maryland D0006997, as entered in NPPES) on the Maryland Board of Physicians; 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
1033329586
Name
Robert Lee Marcus
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
D0006997 MD
Self-reported in NPPES; status is on the state search
Practice location
1576 Merritt Blvd, Baltimore, MD 21222
Phone
(410) 285-8787
Enumerated
May 23, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(410) 282-3579
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1576 Merritt Blvd

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

  1. Janice Adams-Cooper, OTHand Occupational Therapist1598828832
  2. Leomina Escalante, MDPediatrics Physician1568527430
  3. Tarique Firozvi, M.D.Internal Medicine Physician1346278090
  4. Victor Frazier, PTPhysical Therapist1033273198
  5. Amanda Jedamski, OTOccupational Therapist1770771321
  6. Nicola London, M.D.Obstetrics & Gynecology Physician1295704708

Verify Robert Lee Marcus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0006997    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 Maryland license search

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Industry payments in 2024: $139.74

1 payment: food and beverage; the largest payer was Alexion Pharmaceuticals, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Marcus$139.74
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Rheumatology Physician providers in Maryland

There are 214 rheumatology physician records in Maryland.

All 214 in Maryland → Every provider in Baltimore →

Other rheumatology physician records in Maryland

  1. Jonathan Adelson, M.D.Greenbelt, MD1700864501
  2. Naila Ahmad, MDEaston, MD1366451619
  3. Grace Ahn, M.D.Rockville, MD1982884896
  4. Ashika Ajitkumar, MDBaltimore, MD1659044436
  5. Maria Alba-Dauhajre, MDSilver Spring, MD1487676458
  6. Jemima Felicity Albayda, MDBaltimore, MD1285955765
  7. Shabnam Ali, M.D.Columbia, MD1487837837
  8. Dareen Almanabri, M.D.Hollywood, MD1679869051
  9. Mariam Ameri, MDAnnapolis, MD1588807861
  10. Brendan Antiochos, M.D.Baltimore, MD1174799092

Common questions

What is Robert Lee Marcus, M.D.'s NPI number?

Robert Lee Marcus, M.D.'s National Provider Identifier (NPI) is 1033329586, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert Lee Marcus, M.D. located?

The NPPES record lists a practice address at 1576 Merritt Blvd, Baltimore, MD, 21222. Phone: (410) 285-8787. Providers update this record themselves, so call before visiting.

How can I verify Robert Lee Marcus, M.D.'s license?

NPPES lists Maryland license number D0006997, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.