Warren Finkelstein, M.D.
Gastroenterology Physician · Glen Ridge, NJ
Warren Finkelstein, M.D. is a gastroenterology physician with a practice address in Glen Ridge, New Jersey, and NPI 1376543223, issued on Jul 21, 2005. Check the license (New Jersey MA33168, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Warren Finkelstein
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MA33168 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 123 Highland Ave, Glen Ridge, NJ 07028
- Phone
- (973) 429-8800
- Enumerated
- Jul 21, 2005
- Record last updated
- Jul 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (973) 748-7076
- Entity
- Type 1 · individual
Also registered at 123 Highland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joseph Barbalinardo, MDSurgery Physician1942350418
- Robert Barbalinardo, MDSurgery Physician1942350426
- Andrea CohenDiabetes Educator Registered Nurse1578924973
- Maris Davis, M.D.Endocrinology, Diabetes & Metabolism Physician1841381076
- Silvia Fresco, MDSurgery Physician1497805832
Verify Warren Finkelstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license MA33168Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average gastroenterology physician in 2024
35 Medicare Part D claims, against an average of 811 among the 16,445 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.
7 gastroenterology physician records list a practice address in Glen Ridge
They are 7 of the 169 NPPES records with a practice address in Glen Ridge, and 735 gastroenterology physician records in New Jersey.
All 7 in Glen Ridge → All 735 in New Jersey → Every provider in Glen Ridge →
Other gastroenterology physician records in New Jersey
- Bernard Aaron, M.D.Brick, NJ1962475566
- George Abdelsayed, MDNew Brunswick, NJ1144298613
- Rini Abraham, M.D.Montclair, NJ1285893321
- Melville Ackerman, MDMedford, NJ1598707580
- Faiz AfridiNewark, NJ1124480132
- Anil Agarwal, MDClifton, NJ1497704373
- Sudhir Agarwal, MDSuccasunna, NJ1215006275
- Aakash Aggarwal, MDHackensack, NJ1942597588
- Ahmed Ahmed, DOFort Lee, NJ1093219099
- Rafeeq Ahmed, M.DManahawkin, NJ1740411933
Common questions
What is Warren Finkelstein, M.D.'s NPI number?
Warren Finkelstein, M.D.'s National Provider Identifier (NPI) is 1376543223, issued on Jul 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Warren Finkelstein, M.D. located?
The NPPES record lists a practice address at 123 Highland Ave, Glen Ridge, NJ, 07028. Phone: (973) 429-8800. Providers update this record themselves, so call before visiting.
How can I verify Warren Finkelstein, M.D.'s license?
NPPES lists New Jersey license number MA33168, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Warren Finkelstein, M.D. prescribe under Medicare Part D?
In 2024, Warren Finkelstein, M.D. had 35 Medicare Part D claims; the average among gastroenterology physician prescribers was 811. 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.