Grand Medical Services, PC
NPI 1023288149 · Gastroenterology Physician · Baldwin, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grand Medical Services, PC is a Gastroenterology Physician organization in Baldwin, NY (NPI 1023288149).
Provider details
- NPI number
- 1023288149
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Sonya Ventour, President(516) 771-4971
- License
- 184350 (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
18 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
- 2008-03-04
- Last updated
- 2008-03-04
Frequently asked questions
- What is Grand Medical Services, PC's NPI number?
- Grand Medical Services, PC's National Provider Identifier (NPI) is 1023288149, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Grand Medical Services, PC?
- Grand Medical Services, PC is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Grand Medical Services, PC located?
- Grand Medical Services, PC's practice location on file with NPPES is 2280 Grand Ave Ste 303, Baldwin, NY 11510-3110.
- What is Grand Medical Services, PC's phone number?
- The practice phone number listed in the NPPES registry for Grand Medical Services, PC is (516) 771-4971.
- Does Grand Medical Services, PC accept Medicare?
- Grand Medical Services, PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Grand Medical Services, PC?
- The authorized official listed on Grand Medical Services, PC's NPPES record is Sonya Ventour, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Grand Medical Services, PC's NPI active?
- Yes — Grand Medical Services, PC's NPI (1023288149) is active in the NPPES registry as of the last update on 2008-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.