Mikhail Grzhibek, M.D.
NPI 1629033709ActiveIndividual· Internal Medicine· East Patchogue, NY
Internal Medicine (M.D.) in East Patchogue, New York, trained at State University of Ny Upstate Medical University (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $549,369 for 5,484 claims, against $281,461 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 9 companies reporting payments in 2025, $442.13 in all, mostly food and beverage.
Overview
| NPI | 1629033709 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 20, 2006 |
| Last updated in NPPES | Apr 13, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 239339 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 356 |
|---|---|
| Services billed | 3,525 across 33 procedure codes |
| Paid by Medicare | $281,461 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,484 · 11,122 30-day fills |
|---|---|
| Patients | 351 |
| Total drug cost | $549,369 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | State University of Ny Upstate Medical University |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Internal Medicine |
Hospital affiliation
- Long Island Community HospitalPatchogue, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
- NYU Langone Home Health CareHome health agency · Garden City, NY
- Tender Loving Care, An Amedisys CompanyHome health agency · Medford, NY
- Brookhaven Health Care Facility, LLCNursing home · East Patchogue, NY
Industry payments (Open Payments)
- 2025$442.13 · 16 payments from 9 companies
- 2024$325.17 · 11 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $148.67 | 2 |
| Novo Nordisk Inc | $86.86 | 4 |
| Inspire Medical Systems, Inc. | $46.31 | 2 |
| Exact Sciences Corporation | $42.86 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $38.78 | 2 |
What the 2025 payments were for
- Food and Beverage$442.13 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in East Patchogue
- 1912941238
- 1154811289
- 1932405149
- 1336253616
- 1992092365
- 1093206567
- 1306157763
- 1578525960
- 1760017834
- 1992064513
- 1003502402
- 1902435415