Daniel O'Brien, M.D.
NPI 1033144852ActiveIndividual· Anesthesiology· Fitchburg, MA
Anesthesiology (M.D.) with Tri Anesthesia LLC and 1 other group, practicing in Fitchburg, Massachusetts. Medicare paid $21,775 for services to 207 patients in 2024. Stryker Corporation reported $29.16 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1033144852 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | Nov 15, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 58686 | MA |
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 - Anesthesiology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 207 |
|---|---|
| Services billed | 211 across 7 procedure codes |
| Paid by Medicare | $21,775 |
Education and affiliations
| Graduation year | 1975 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical groups
- Tri Anesthesia LLCWorcester, MA · 36 clinicians
- Icon Anesthesia Services of New England LLCConcord, NH · 13 clinicians
Industry payments (Open Payments)
- 2025$29.16 · 1 payment from 1 company
- 2024$22.03 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $29.16 | 1 |
What the 2025 payments were for
- Food and Beverage$29.16 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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