Sarah M. O'Shea, MD
NPI 1912269622ActiveIndividual· Internal Medicine· Westfield, MA
Internal Medicine (MD) with Western Mass Physician Associates Inc, practicing in Westfield, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $731,551 for 6,166 claims, against $42,326 paid for services in 2024. Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $90.38 in all, mostly food and beverage. Lists Baystate Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1912269622 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 10, 2012 |
| Last updated in NPPES | Jan 31, 2022 |
| Certified by provider | Jan 31, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 263638 | 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 - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 239 |
|---|---|
| Services billed | 569 across 29 procedure codes |
| Paid by Medicare | $42,326 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,166 · 14,125 30-day fills |
|---|---|
| Patients | 678 |
| Total drug cost | $731,551 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Western Mass Physician Associates IncHolyoke, MA · 71 clinicians
Hospital affiliations
- Baystate Medical CenterSpringfield, MA
- Baystate Noble HospitalWestfield, MA
- Holyoke Medical CenterHolyoke, MA
- Mercy Medical CtrSpringfield, MA
Other facilities
- Amedisys Home Health CareHome health agency · Agawam, MA
- Baystate Home HealthHome health agency · W Springfield, MA
- Holyoke Visiting Nurse AssocHome health agency · Holyoke, MA
Industry payments (Open Payments)
- 2025$90.38 · 2 payments from 2 companies
- 2024$82.93 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $75.58 | 1 |
| Novo Nordisk Inc | $14.80 | 1 |
What the 2025 payments were for
- Food and Beverage$90.38 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 internal medicine physicians in Westfield · All internal medicine physicians in Massachusetts