Gregory J. Riley, M.D.
Internal Medicine Physician · Rochester, NY
Gregory J. Riley, M.D. is an internal medicine physician with a practice address in Rochester, New York, and NPI 1942239314, issued on Jun 30, 2006. Check the license (New York 107431, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Riley
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 107431 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2400 S Clinton Ave, Rochester, NY 14618
- Phone
- (585) 341-7299
- Enumerated
- Jun 30, 2006
- Record last updated
- Aug 13, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (585) 341-4262
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 2400 S Clinton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Abbott, M.D.Internal Medicine Physician1225044712
- John Andolina, M.D.Internal Medicine Physician1346279734
- Heather Bonenfant, M.D.Internal Medicine Physician1619907201
- Thomas Campbell, M.D.Internal Medicine Physician1871522243
- Patrick Connors, M.D.Internal Medicine Physician1316977952
- Sarah Cook, RDRegistered Dietitian1295596484
Verify Gregory J. Riley 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 107431Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
11 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
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 J. Riley among 12,067 internal medicine physician records in New York
Gregory J. Riley, M.D. 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2007 · 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).
504 internal medicine physician records list a practice address in Rochester
They are 504 of the 20,520 NPPES records with a practice address in Rochester, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Rochester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Diane Ahlman, MDRochester, NY 146181881652675
- Brenda Baratta, MDRochester, NY 146181003874322
- Lon Baratz, MDRochester, NY 146181487614350
- Paul Burns, M.D.Rochester, NY 146181528064680
- Edith Dale, M.D.Rochester, NY 146181609876838
- Lior Greenberg, M.D.Rochester, NY 146181073560033
- Stephen Judge, M.D.Rochester, NY 146181497702955
- Lars-Goran Larsson, MDRochester, NY 146181417903642
Common questions
What is Gregory J. Riley, M.D.'s NPI number?
Gregory J. Riley, M.D.'s National Provider Identifier (NPI) is 1942239314, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Riley, M.D. located?
The NPPES record lists a practice address at 2400 S Clinton Ave, Rochester, NY, 14618. Phone: (585) 341-7299. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Riley, M.D.'s license?
NPPES lists New York license number 107431, 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 J. Riley, M.D. prescribe under Medicare Part D?
In 2024, Gregory J. Riley, M.D. had 11 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.