Thomas Lang Mahoney, M.D.
Internal Medicine Physician · Henrietta, NY
Thomas Lang Mahoney, M.D. is an internal medicine physician with a practice address in Henrietta, New York, and NPI 1235166414, issued on Jun 26, 2006. Check the license (New York 142554, 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
- Thomas Lang Mahoney
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 142554 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3875 E Henrietta RD, Henrietta, NY 14467
- Phone
- (585) 334-4200
- Enumerated
- Jun 26, 2006
- Record last updated
- Mar 7, 2023
- Medicaid ID
- 00762203 NY
- Entity
- Type 1 · individual
Also registered at 3875 E Henrietta RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Garneau, M.D.Internal Medicine Physician1871525154
- James Horohoe, M.D.Internal Medicine Physician1255377933
- Susan Sulewski, FNPNurse Practitioner1740376136
Verify Thomas Lang Mahoney 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 142554Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4 internal medicine physician records list a practice address in Henrietta
They are 4 of the 148 NPPES records with a practice address in Henrietta, 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 4 in Henrietta → All 12,067 in New York → Every provider in Henrietta →
Other internal medicine physician records in New York
- Deborah Aanonsen, D.O.Staten Island, NY1952395717
- 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 Thomas Lang Mahoney, M.D.'s NPI number?
Thomas Lang Mahoney, M.D.'s National Provider Identifier (NPI) is 1235166414, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Lang Mahoney, M.D. located?
The NPPES record lists a practice address at 3875 E Henrietta RD, Henrietta, NY, 14467. Phone: (585) 334-4200. Providers update this record themselves, so call before visiting.
How can I verify Thomas Lang Mahoney, M.D.'s license?
NPPES lists New York license number 142554, 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.