Hillel Hammerman, M.D.
NPI 1619911021 · Gastroenterology Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hillel Hammerman, M.D. is a Gastroenterology Physician provider in New York, NY (NPI 1619911021).
Provider details
- NPI number
- 1619911021
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 153188 (NY)
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
- 2006-06-15
- Last updated
- 2012-09-01
Frequently asked questions
- What is Hillel Hammerman's NPI number?
- Hillel Hammerman's National Provider Identifier (NPI) is 1619911021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hillel Hammerman's specialty?
- Hillel Hammerman is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Hillel Hammerman located?
- Hillel Hammerman's practice location on file with NPPES is 210 E 73rd St, New York, NY 10021-4395.
- What is Hillel Hammerman's phone number?
- The practice phone number listed in the NPPES registry for Hillel Hammerman is (212) 288-1030.
- Does Hillel Hammerman accept Medicare?
- Hillel Hammerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hillel Hammerman's NPI active?
- Yes — Hillel Hammerman's NPI (1619911021) is active in the NPPES registry as of the last update on 2012-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.