Ruairi Joseph O Connor, MD
NPI 1568031318ActiveIndividual· Emergency Medicine· Worcester, MA
Emergency Medicine (MD) with Nems PLLC and 2 other groups, practicing in Worcester, Massachusetts. Part D covered 32 prescriptions written in 2024, 81% of them generic. Lists Day Kimball Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1568031318 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 24, 2021 |
| Last updated in NPPES | May 7, 2025 |
| Certified by provider | May 7, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 80341 | CT |
| Student in an Organized Health Care Education/Training Program | 390200000X | 294733 | 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 - Emergency Medicine (CT); Practitioner - Emergency Medicine (MA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 32 · 34 30-day fills |
|---|---|
| Patients | 25 |
| Total drug cost | $2,503 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- Nems PLLCPutnam, CT · 39 clinicians
- Northeast Emergency Medicine Specialists LLCWillimantic, CT · 39 clinicians
- Orion Emergency Services, Inc.Milford, MA · 19 clinicians
Hospital affiliations
- Day Kimball HospitalPutnam, CT
- Manchester Memorial HospitalManchester, CT
- Windham Community Memorial HospitalWillimantic, CT
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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