Michelle Ma, MD
Gastroenterology Physician · Baltimore, MD
Michelle Ma, MD is a gastroenterology physician with a practice address in Baltimore, Maryland, and NPI 1457796153, issued on May 8, 2013. Check the license (Maryland D87558, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Michelle Ma
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- D87558 MD
MT203542 PA
Self-reported in NPPES; status is on the state search - Practice location
- 600 N Wolfe Street, Baltimore, MD 21287
- Phone
- (410) 955-2636
- Enumerated
- May 8, 2013
- Record last updated
- Oct 20, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (410) 614-8337
- Medicare enrollment
- Enrolled (PECOS I20191028002571); may accept Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Also registered at 600 N Wolfe Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alba Azola, MDPhysical Medicine & Rehabilitation Physician1366601056
Verify Michelle Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D87558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average gastroenterology physician in 2024
628 Medicare Part D claims for 107 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Tacrolimus63 claims
- Ursodiol63 claims
- Xifaxan46 claims
- Carvedilol44 claims
- Mycophenolate Mofetil44 claims
- Entecavir42 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $641.08
20 payments; by number, the most common kind was food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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
- Johns Hopkins UniversityLutherville, MD
- Johns Hopkins UniversityBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michelle Ma among 505 gastroenterology physician records in Maryland
Michelle Ma, MD is one of 505 gastroenterology physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 81% of them.
- NPI issued2013 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2013 · median 2002 among the 344 with a school on file
- Record last updated2019 · 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 207RG0100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Maryland
There are 505 gastroenterology physician records in Maryland.
All 505 in Maryland → Every provider in Baltimore → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Marcia Canto, M.D.Baltimore, MD 212871992763015
- Mark Donowitz, M.D.Baltimore, MD 212871306893342
- Francis Giardiello, M.D.Baltimore, MD 212871437103645
- Michael Goggins, M.D.Baltimore, MD 212871861445983
- Ahmet Gurakar, MDBaltimore, MD 212871154330363
- Mary Harris, M.D.Baltimore, MD 212871932159738
- Anthony Kalloo, M.D.Baltimore, MD 212871881638153
- Sergey Kantsevoy, M.D., PH.D.Baltimore, MD 212871912954181
Common questions
What is Michelle Ma, MD's NPI number?
Michelle Ma, MD's National Provider Identifier (NPI) is 1457796153, issued on May 8, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Michelle Ma, MD located?
The NPPES record lists a practice address at 600 N Wolfe Street, Baltimore, MD, 21287. Phone: (410) 955-2636. Providers update this record themselves, so call before visiting.
How can I verify Michelle Ma, MD's license?
NPPES lists Maryland license number D87558, 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 Michelle Ma, MD prescribe under Medicare Part D?
In 2024, Michelle Ma, MD had 628 Medicare Part D claims for 107 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Michelle Ma, MD's MIPS final score?
The 2023 MIPS final score is 74.4 of 100, reported for the practice group. 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.