Gregory T. Serfer, D.O.
Internal Medicine Physician · Auburn, NY
Gregory T. Serfer, D.O. is an internal medicine physician with a practice address in Auburn, New York, and NPI 1518003433, issued on Jan 29, 2007. Check the license (New York 246789, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gregory T. Serfer
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 246789 NY
Self-reported in NPPES; status is on the state search - Practice location
- 17 Lansing St, Auburn, NY 13021
- Phone
- (315) 255-7438
- Enumerated
- Jan 29, 2007
- Record last updated
- Feb 7, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (315) 255-7099
- Medicaid ID
- 03600204 NY
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 17 Lansing St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Ambrose, RN, BSN, IBCLCLactation Consultant (Registered Nurse)1760849848
- Amy Arliss, RN, MSN, FNP-BCFamily Nurse Practitioner1306385257
- Shenelle Barr, NPFamily Nurse Practitioner1841620119
- George Ben, M.D.Internal Medicine Physician1881011252
- Scott Biter, PA-CMedical Physician Assistant1417980392
- Abigail Borkowski, PA-CPhysician Assistant1477223907
Verify Gregory T. Serfer 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 246789Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
20 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Gregory T. Serfer among 12,067 internal medicine physician records in New York
Gregory T. Serfer, D.O. 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. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2014 · 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).
22 internal medicine physician records list a practice address in Auburn
They are 22 of the 944 NPPES records with a practice address in Auburn, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Auburn → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Cassandra Archer, M.D.Auburn, NY 130211871586446
- Michelle Belgard, D.O.Auburn, NY 130211982671038
- Brian Bennett, MDAuburn, NY 130211477501609
- Jang Chi, MDAuburn, NY 130211952310005
- William Childres, MDAuburn, NY 130211982671020
- Jeffrey Legrett, M.D.Auburn, NY 130211548240278
- Phillip Lowe, M.D.Auburn, NY 130211952381691
- C. Richard Nangle, M.D.Auburn, NY 130211740260488
Common questions
What is Gregory T. Serfer, D.O.'s NPI number?
Gregory T. Serfer, D.O.'s National Provider Identifier (NPI) is 1518003433, issued on Jan 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory T. Serfer, D.O. located?
The NPPES record lists a practice address at 17 Lansing St, Auburn, NY, 13021. Phone: (315) 255-7438. Providers update this record themselves, so call before visiting.
How can I verify Gregory T. Serfer, D.O.'s license?
NPPES lists New York license number 246789, 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 Gregory T. Serfer, D.O. prescribe under Medicare Part D?
In 2024, Gregory T. Serfer, D.O. had 20 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.