Joan Ma, M.D.
Emergency Medicine Physician · New York, NY
Joan Ma, M.D. is an emergency medicine physician with a practice address in New York, New York, and NPI 1902285380, issued on May 19, 2015. Check the license (New York 298232, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Joan Ma
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 298232 NY
61345 CT
Self-reported in NPPES; status is on the state search - Practice location
- 622 W 168TH St, New York, NY 10032
- Phone
- (212) 305-2500
- Enumerated
- May 19, 2015
- Record last updated
- Aug 7, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190731003166); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 622 W 168TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shauna Abdouche, MDStudent in an Organized Health Care Education/Training Program1316400484
- Irum AbdullahStudent in an Organized Health Care Education/Training Program1366307555
- Samantha Abel, PA-CPhysician Assistant1619485018
- Alvin AbellaAcute Care Nurse Practitioner1588068233
- Abenezer AberaStudent in an Organized Health Care Education/Training Program1386348340
Verify Joan Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 298232Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average emergency medicine physician in 2024
48 Medicare Part D claims for 44 beneficiaries, against an average of 226 among the 54,106 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): 100 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).
Bills Medicare through one group practice
- Trustees OF Columbia University IN The City OF New YorkNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joan Ma among 5,025 emergency medicine physician records in New York
Joan Ma, M.D. is one of 5,025 emergency medicine physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 63% of them.
- NPI issued2015 · 63% of these records are older, 33% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2013 among the 3,232 with a school on file
- Record last updated2019 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,075 emergency medicine physician records list a practice address in New York
They are 1,075 of the 98,468 NPPES records with a practice address in New York, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in New York → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- James Celentano, M.D.New York, NY 100321811920085
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- Fareed Fareed, MDNew York, NY 100321013940204
- Dawn Haley, PA-CNew York, NY 100321720019466
- Veronica Hlibczuk, MDNew York, NY 100321679506869
- Laura Michaeli, M.D.New York, NY 100321740218882
- Angela Mills, MDNew York, NY 100321750318077
- Rachel Moresky, MDNew York, NY 100321275566465
Common questions
What is Joan Ma, M.D.'s NPI number?
Joan Ma, M.D.'s National Provider Identifier (NPI) is 1902285380, issued on May 19, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Joan Ma, M.D. located?
The NPPES record lists a practice address at 622 W 168TH St, New York, NY, 10032. Phone: (212) 305-2500. Providers update this record themselves, so call before visiting.
How can I verify Joan Ma, M.D.'s license?
NPPES lists New York license number 298232, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joan Ma, M.D. prescribe under Medicare Part D?
In 2024, Joan Ma, M.D. had 48 Medicare Part D claims for 44 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Joan Ma, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.