John H. Clark, MD
Internal Medicine Physician · Buffalo, NY
John H. Clark, MD is an internal medicine physician with a practice address in Buffalo, New York, and NPI 1588625123, issued on Mar 31, 2006. Check the license (New York 124036, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John H. Clark
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 124036 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3 Gates Cir, Buffalo, NY 14209
- Phone
- (716) 887-4690
- Enumerated
- Mar 31, 2006
- Record last updated
- Nov 5, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
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Verify John H. Clark 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 124036Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John H. Clark among 12,067 internal medicine physician records in New York
John H. Clark, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2010 · 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 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,067 in New York → Every provider in Buffalo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jennifer Abeles, MDBuffalo, NY 142091952304024
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- Deepa GosineBuffalo, NY 142091508158304
- Christina Padgett, D.O.Buffalo, NY 142091831535681
- Anika Parika, MDBuffalo, NY 142091124945761
- Benjamin Rueda, MDBuffalo, NY 142091891767786
- Susan Schwartz, M.D.Buffalo, NY 142091598720096
- Alan Segal, M.D.Buffalo, NY 142091538273966
Common questions
What is John H. Clark, MD's NPI number?
John H. Clark, MD's National Provider Identifier (NPI) is 1588625123, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John H. Clark, MD located?
The NPPES record lists a practice address at 3 Gates Cir, Buffalo, NY, 14209. Phone: (716) 887-4690. Providers update this record themselves, so call before visiting.
How can I verify John H. Clark, MD's license?
NPPES lists New York license number 124036, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.