Errol S. Mortimer, M.D.
NPI 1851375984ActiveIndividual· Orthopaedic Surgery· Worcester, MA
Orthopaedic Surgery (M.D.) with Umass Memorial Medical Group Inc, practicing in Worcester, Massachusetts. Medicare paid $13,785 for services to 37 patients in 2024. Stryker Corporation reported $179.79 in payments in 2025, mostly food and beverage. Lists Milford Regional Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1851375984 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 1, 2005 |
| Last updated in NPPES | Oct 28, 2020 |
| Certified by provider | Oct 28, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 81083 | 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 - Orthopedic Surgery (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 37 |
|---|---|
| Services billed | 62 across 18 procedure codes |
| Paid by Medicare | $13,785 |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Medical group
- Umass Memorial Medical Group IncWorcester, MA · 2,516 clinicians
Hospital affiliations
- Milford Regional Medical CenterMilford, MA
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
- 2025$179.79 · 5 payments from 1 company
- 2024$21.31 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $179.79 | 5 |
What the 2025 payments were for
- Food and Beverage$179.79 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 49 orthopedic surgeons in Worcester · All orthopedic surgeons in Massachusetts