John J. O'Connor Jr., M.D.
NPI 1295988921ActiveIndividual· Anesthesiology· Worcester, MA
Anesthesiology (M.D.) with Coastal Medical Associates, practicing in Worcester, Massachusetts. Medicare paid $44,457 for services to 413 patients in 2024. Lists South Shore Hospital as a hospital affiliation.
Overview
| NPI | 1295988921 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 26, 2008 |
| Last updated in NPPES | Oct 8, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 238964 | 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 - Anesthesiology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 413 |
|---|---|
| Services billed | 520 across 69 procedure codes |
| Paid by Medicare | $44,457 |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Anesthesiology |
| Secondary specialties | Critical Care (Intensivists) |
Medical group
- Coastal Medical AssociatesWeymouth, MA · 443 clinicians
Hospital affiliation
- South Shore HospitalSouth Weymouth, MA
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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