Warren Finkelstein, M.D.
NPI 1376543223 · Gastroenterology Physician · Glen Ridge, NJ
Enrolled with Medicare as Order and Referring Only - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Finkelstein, M.D. is a Gastroenterology Physician provider in Glen Ridge, NJ (NPI 1376543223).
Provider details
- NPI number
- 1376543223
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MA33168 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-21
- Last updated
- 2010-07-01
Frequently asked questions
- What is Warren Finkelstein's NPI number?
- Warren Finkelstein's National Provider Identifier (NPI) is 1376543223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Finkelstein's specialty?
- Warren Finkelstein is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Finkelstein located?
- Warren Finkelstein's practice location on file with NPPES is 123 Highland Ave, Glen Ridge, NJ 07028-1527.
- What is Warren Finkelstein's phone number?
- The practice phone number listed in the NPPES registry for Warren Finkelstein is (973) 429-8800.
- Does Warren Finkelstein accept Medicare?
- Warren Finkelstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Finkelstein's NPI active?
- Yes — Warren Finkelstein's NPI (1376543223) is active in the NPPES registry as of the last update on 2010-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.