Gregory Nishimura, M.D.
NPI 1881744795 · Surgery Physician · Hewlett, NY
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Nishimura, M.D. is a Surgery Physician provider in Hewlett, NY (NPI 1881744795).
Provider details
- NPI number
- 1881744795
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 217807 (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
19 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
- 2007-01-11
- Last updated
- 2007-07-09
Frequently asked questions
- What is Gregory Nishimura's NPI number?
- Gregory Nishimura's National Provider Identifier (NPI) is 1881744795, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Nishimura's specialty?
- Gregory Nishimura is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Nishimura located?
- Gregory Nishimura's practice location on file with NPPES is 1420 Broadway, Hewlett, NY 11557-1352.
- What is Gregory Nishimura's phone number?
- The practice phone number listed in the NPPES registry for Gregory Nishimura is (516) 374-8631.
- Does Gregory Nishimura accept Medicare?
- Gregory Nishimura is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Nishimura's NPI active?
- Yes — Gregory Nishimura's NPI (1881744795) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.