Emily Ann Marcus, M.D.
Internal Medicine Physician · Baltimore, MD
Emily Ann Marcus, M.D. is an internal medicine physician with a practice address in Baltimore, Maryland, and NPI 1184956773, issued on Feb 5, 2010. Check the license (Maryland D77898, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Emily Ann Marcus
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D77898 MD
Self-reported in NPPES; status is on the state search - Practice location
- 301 Saint Paul St, Baltimore, MD 21202
- Phone
- (410) 332-9000
- Enumerated
- Feb 5, 2010
- Record last updated
- Feb 13, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (410) 576-5486
- Medicare enrollment
- Enrolled (PECOS I20140730001388); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 301 Saint Paul St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Emily Ann Marcus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D77898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
12 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
The MIPS final score for 2023 (Medicare payment program): 14.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $121.11
1 payment: food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Maryland Family Care IncBaltimore, MD
- St Paul Place Specialists, Inc.Baltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emily Ann Marcus among 3,904 internal medicine physician records in Maryland
Emily Ann Marcus, M.D. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 64% of them.
- NPI issued2010 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2003 among the 2,445 with a school on file
- Record last updated2015 · 59% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,278 internal medicine physician records list a practice address in Baltimore
They are 1,278 of the 35,183 NPPES records with a practice address in Baltimore, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Baltimore → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Pratima Bose, M.D.Baltimore, MD 212021376599977
- Majid Cina, MDBaltimore, MD 212021790767531
- Gary Friedman, MDBaltimore, MD 212021023016680
- Jeffrey Gaber, M.D.Baltimore, MD 212021386611853
- Albert Han, MDBaltimore, MD 212021538141106
- Tara Hebert, M.D.Baltimore, MD 212021225089337
- Nilesh Kalyanaraman, M.D.Baltimore, MD 212021639140239
- Colleen Leavitt, MDBaltimore, MD 212021528042959
Common questions
What is Emily Ann Marcus, M.D.'s NPI number?
Emily Ann Marcus, M.D.'s National Provider Identifier (NPI) is 1184956773, issued on Feb 5, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Emily Ann Marcus, M.D. located?
The NPPES record lists a practice address at 301 Saint Paul St, Baltimore, MD, 21202. Phone: (410) 332-9000. Providers update this record themselves, so call before visiting.
How can I verify Emily Ann Marcus, M.D.'s license?
NPPES lists Maryland license number D77898, 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.
How much does Emily Ann Marcus, M.D. prescribe under Medicare Part D?
In 2024, Emily Ann Marcus, M.D. had 12 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Emily Ann Marcus, M.D.'s MIPS final score?
The 2023 MIPS final score is 14.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.