Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory S Nishimura, M.D.
Surgery Physician in Hewlett, NY · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881744795
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Registry record
Entity type Individual (Type 1)
Name Gregory S Nishimura
Credential M.D.
Sex Male
Practice address 1420 Broadway, Hewlett, NY, 11557
Phone (516) 374-8631
Enumeration date Jan 11, 2007
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 02153051 | Medicaid | NY | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Gregory Nishimura practice?
The practice location on file with NPPES is in Hewlett, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gregory Nishimura?
The National Provider Identifier (NPI) for Gregory Nishimura is 1881744795, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Rajeev Vohra Surgery Physician · Hewlett, NY NPI 1760478978 Lawrence Gottlieb Internal Medicine Physician · Hewlett, NY NPI 1154305209 Hewlett Medical Office P.C Internal Medicine Physician · Hewlett, NY NPI 1437259066 Jordan Kramer Internal Medicine Physician · Hewlett, NY NPI 1407911456 New York Bariatrics and Laparoscopy PC Specialist · Hewlett, NY NPI 1306998802 Robin Huang Surgery Physician · Hewlett, NY NPI 1699958645 Andre Serrette Geriatric Medicine (Family Medicine) Physician · Hewlett, NY NPI 1558522888 Medical and Surgical Eyesite PC Ophthalmology Physician · Hewlett, NY NPI 1134524952
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.