Colin H. O'Brien, M.D.
NPI 1538142708ActiveIndividual· Emergency Medicine· Worcester, MA
Emergency Medicine (M.D.) with Foundation Medical Partners Inc, practicing in Worcester, Massachusetts. 317 Medicare patients in 2024, $34,729 paid; nearly all of their 119 Part D prescriptions were generic (96%). Astrazeneca Pharmaceuticals LP was the largest of 2 companies reporting payments in 2024, $128.06 in all, mostly food and beverage. Lists Southern Nh Medical Center as a hospital affiliation.
Overview
| NPI | 1538142708 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 22, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 153284 | 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 - Emergency Medicine (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 317 |
|---|---|
| Services billed | 335 across 9 procedure codes |
| Paid by Medicare | $34,729 |
Part D prescriptions in 2024
| Prescriptions (claims) | 119 · 120 30-day fills |
|---|---|
| Patients | 82 |
| Total drug cost | $1,392 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical group
- Foundation Medical Partners IncMilford, NH · 317 clinicians
Hospital affiliation
- Southern Nh Medical CenterNashua, NH
Industry payments (Open Payments)
- 2024$128.06 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $108.06 | 1 |
| Csl Behring | $20.00 | 1 |
What the 2024 payments were for
- Food and Beverage$108.06 · 1 payment
- Education$20.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 216 emergency medicine physicians in Worcester · All emergency medicine physicians in Massachusetts