Joseph S. Thomas, M.D.
Internal Medicine Physician · Buffalo, NY
Joseph S. Thomas, M.D. is an internal medicine physician with a practice address in Buffalo, New York, and NPI 1861887846, issued on Apr 6, 2015. Check the license (New York 291514, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Joseph S. Thomas
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 291514 NY
Self-reported in NPPES; status is on the state search - Practice location
- 100 High Street, Buffalo, NY 14203
- Phone
- (716) 859-5600
- Enumerated
- Apr 6, 2015
- Record last updated
- Aug 13, 2025
- Fax
- (716) 817-1724
- Medicare enrollment
- Enrolled (PECOS I20190409001134); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 2015
- Entity
- Type 1 · individual
Also registered at 100 High Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph S. Thomas 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 291514Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
156 Medicare Part D claims for 91 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
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): 87.1 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).
2 hospitals and group practices
- Mercy Hospital OF BuffaloBuffalo, NY · Acute Care Hospitals2 of 5 stars
- Sisters OF Charity Hospital OF Buffalo New YorkBuffalo, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
293 internal medicine physician records list a practice address in Buffalo
They are 293 of the 13,287 NPPES records with a practice address in Buffalo, and 12,067 internal medicine physician records in New York.
All 293 in Buffalo → All 12,067 in New York → Every provider in Buffalo →
Other internal medicine physician records in New York
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- Nivedita Aanur, M.D.New York, NY1982833471
- Jay Aaron, MDGreat Neck, NY1245332956
- Ahmad AbadiPoughkeepsie, NY1780258517
- Jamsheed Abadi, MDBrooklyn, NY1477537496
- Antonieta Abarientos, MDNew Rochelle, NY1649285123
- Zurab Abayev, M.D.Brooklyn, NY1841283058
- Ehab Abaza, MDNew York, NY1114507555
- Vaidarshi Abbagoni, MDNew York, NY1871237495
- Muhammad AbbasRichmond Hill, NY1053996587
Common questions
What is Joseph S. Thomas, M.D.'s NPI number?
Joseph S. Thomas, M.D.'s National Provider Identifier (NPI) is 1861887846, issued on Apr 6, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Joseph S. Thomas, M.D. located?
The NPPES record lists a practice address at 100 High Street, Buffalo, NY, 14203. Phone: (716) 859-5600. Providers update this record themselves, so call before visiting.
How can I verify Joseph S. Thomas, M.D.'s license?
NPPES lists New York license number 291514, 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 Joseph S. Thomas, M.D. prescribe under Medicare Part D?
In 2024, Joseph S. Thomas, M.D. had 156 Medicare Part D claims for 91 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Joseph S. Thomas, M.D.'s MIPS final score?
The 2023 MIPS final score is 87.1 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.