Peter Mark Grzesik, DO
NPI 1518378231ActiveIndividual· Anesthesiology· Worcester, MA
Anesthesiology (DO) in Worcester, Massachusetts, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 2014). Medicare paid $65,240 for services to 247 patients in 2024.
Overview
| NPI | 1518378231 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 15, 2014 |
| Last updated in NPPES | Jul 29, 2021 |
| Certified by provider | Jul 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 287786 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 247 |
|---|---|
| Services billed | 481 across 67 procedure codes |
| Paid by Medicare | $65,240 |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Anesthesiology |
Medical group
- Umass Memorial Medical Group IncWorcester, MA · 2,516 clinicians
Hospital affiliation
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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