Patrick Keating O'Callaghan, M.D.
NPI 1750792446ActiveIndividual· Orthopaedic Surgery· Charleston, SC
Orthopaedic Surgery (M.D.) in Charleston, South Carolina, trained at Michigan State University College of Human Medicine (class of 2014). 405 Medicare patients in 2024, $245,545 paid; all of their 235 Part D prescriptions were generic. Stryker Corporation was the largest of 3 companies reporting payments in 2025, $595.60 in all, mostly food and beverage.
Overview
| NPI | 1750792446 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 15, 2014 |
| Last updated in NPPES | Feb 2, 2023 |
| Certified by provider | Feb 2, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 4301502027 | MI |
| Surgery | 208600000X | 36808 | SC |
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 - Orthopedic Surgery (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 405 |
|---|---|
| Services billed | 2,825 across 120 procedure codes |
| Paid by Medicare | $245,545 |
Part D prescriptions in 2024
| Prescriptions (claims) | 235 · 235 30-day fills |
|---|---|
| Patients | 186 |
| Total drug cost | $765.23 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- McLaren Central MichiganMount Pleasant, MI · 182 clinicians
Hospital affiliations
- Chippewa County War Memorial HospitalSault Ste Marie, MI
- McLaren Central MichiganMount Pleasant, MI
- McLaren Northern MichiganPetoskey, MI
Industry payments (Open Payments)
- 2025$595.60 · 4 payments from 3 companies
- 2024$1,728 · 15 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $320.41 | 2 |
| Zimmer Biomet Holdings, Inc. | $158.65 | 1 |
| Zak Ortho | $116.54 | 1 |
What the 2025 payments were for
- Food and Beverage$595.60 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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