Brian William Oconnor, MD
NPI 1912991522ActiveIndividual· Preventive Medicine, Addiction Medicine· Woburn, MA
Preventive Medicine, Addiction Medicine (MD) in Woburn, Massachusetts, trained at Georgetown University School of Medicine (class of 1984). 129 Medicare patients in 2024, $141,520 paid; nearly all of their 810 Part D prescriptions were generic (92%). Braeburn Inc. was the largest of 2 companies reporting payments in 2025, $71.88 in all, mostly food and beverage.
Overview
| NPI | 1912991522 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 9, 2005 |
| Last updated in NPPES | Jul 29, 2025 |
| Certified by provider | Jul 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Preventive Medicine, Addiction Medicine Primary | 2083A0300X | 72453 | MA |
| Preventive Medicine, Addiction Medicine | 2083A0300X | 20743 | NH |
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 - Addiction Medicine (MA); Practitioner - Obstetrics/Gynecology (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 129 |
|---|---|
| Services billed | 2,186 across 16 procedure codes |
| Paid by Medicare | $141,520 |
Part D prescriptions in 2024
| Prescriptions (claims) | 810 · 861 30-day fills |
|---|---|
| Patients | 84 |
| Total drug cost | $108,078 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Addiction Medicine |
| Secondary specialties | Obstetrics/Gynecology |
| Telehealth | Offers telehealth |
Medical group
- Middlesex Recovery PCWoburn, MA · 6 clinicians
Industry payments (Open Payments)
- 2025$71.88 · 4 payments from 2 companies
- 2024$147.19 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Braeburn Inc. | $56.23 | 3 |
| Indivior Inc. | $15.65 | 1 |
What the 2025 payments were for
- Food and Beverage$71.88 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records