Mikhail Grzhibek, M.D., P.C.
NPI 1831444819 · Primary Care Clinic/Center · East Patchogue, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mikhail Grzhibek, M.D., P.C. is a Primary Care Clinic/Center organization in East Patchogue, NY (NPI 1831444819).
Provider details
- NPI number
- 1831444819
- Entity type
- Organization
- Primary specialty
- Primary Care Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Mikhail Grzhibek, President(917) 750-2937
- License
- 239339 (NY)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
- 2012-07-17
- Last updated
- 2012-07-17
Frequently asked questions
- What is Mikhail Grzhibek, M.D., P.C.'s NPI number?
- Mikhail Grzhibek, M.D., P.C.'s National Provider Identifier (NPI) is 1831444819, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mikhail Grzhibek, M.D., P.C.?
- Mikhail Grzhibek, M.D., P.C. is classified in the NPPES registry as Primary Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is Mikhail Grzhibek, M.D., P.C. located?
- Mikhail Grzhibek, M.D., P.C.'s practice location on file with NPPES is 285 Sills Rd Bldg 4, East Patchogue, NY 11772-4869.
- What is Mikhail Grzhibek, M.D., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Mikhail Grzhibek, M.D., P.C. is (631) 654-1800.
- Does Mikhail Grzhibek, M.D., P.C. accept Medicare?
- Mikhail Grzhibek, M.D., P.C. 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 Mikhail Grzhibek, M.D., P.C.?
- The authorized official listed on Mikhail Grzhibek, M.D., P.C.'s NPPES record is Mikhail Grzhibek, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mikhail Grzhibek, M.D., P.C.'s NPI active?
- Yes — Mikhail Grzhibek, M.D., P.C.'s NPI (1831444819) is active in the NPPES registry as of the last update on 2012-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.