GMS MEDICAL SERVICES, P.C.
NPI 1942350343
Anesthesiology in Hicksville, NY
About Gms Medical Services, P.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GMS MEDICAL SERVICES, P.C. (NPI 1942350343) is a healthcare organization registered as an anesthesiology in Hicksville, New York and active in the NPI registry since January 2007. The organization maintains a secondary practice location in Locust Valley and lists Gregg Matthew Szerlip, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Location 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gms Medical Services, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Gms Medical Services, P.C., which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gms Medical Services, P.C.'s NPI number?
The NPI number for Gms Medical Services, P.C. is 1942350343. It was assigned to this organization in the NPPES registry on January 11, 2007.
Where is Gms Medical Services, P.C. located?
Gms Medical Services, P.C. is located at 176 Woodbury Rd, Hicksville, NY 11801. The listed phone number is (516) 331-0557.
What is Gms Medical Services, P.C.'s specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Gms Medical Services, P.C. enrolled in Medicare?
Yes. Gms Medical Services, P.C. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Gms Medical Services, P.C.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Anesthesiology) reassigns their Medicare billing to Gms Medical Services, P.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Gms Medical Services, P.C. was last updated on September 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Gms Medical Services, P.c. · NPI 1942350343
Anesthesiology organization in Hicksville, New York. Organization record, active in the CMS NPPES registry since January 11, 2007.
## Identity
- **NPI:** 1942350343 (Entity type: Organization)
- **Enumerated:** January 11, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **Organization subpart:** No
- **Authorized official:** Gregg Szerlip, PRESIDENT
## Practice location
- **Address:** 176 WOODBURY RD, Hicksville, NY 11801-3018
- **Phone:** (516) 331-0557
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Anesthesiology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 10, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1942350343) · Data from the CMS NPPES public registry.