Michael Karch, M.D.
NPI 1861548448ActiveIndividual· Orthopaedic Surgery· Mammoth Lakes, CA
Orthopaedic Surgery (M.D.) in Mammoth Lakes, California, trained at Georgetown University School of Medicine (class of 1995). Mostly services rather than prescriptions: Medicare paid $42,602 for 126 patients in 2024, with only 43 Part D claims. Acera Surgical, Inc. was the largest of 5 companies reporting payments in 2025, $531.06 in all, mostly food and beverage.
Overview
| NPI | 1861548448 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 26, 2007 |
| Last updated in NPPES | Nov 14, 2025 |
| Certified by provider | Nov 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | A63160 | CA |
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 - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 126 |
|---|---|
| Services billed | 461 across 39 procedure codes |
| Paid by Medicare | $42,602 |
Part D prescriptions in 2024
| Prescriptions (claims) | 43 · 50 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $1,970 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Orthopedic Surgery |
| Telehealth | Offers telehealth |
Medical groups
- Northern Inyo Healthcare DistrictBishop, CA · 108 clinicians
- Southern Mono Health Care DistrictMammoth Lakes, CA · 100 clinicians
Hospital affiliations
- Mammoth HospitalMammoth Lakes, CA
- Northern Inyo HospitalBishop, CA
- Ridgecrest Regional HospitalRidgecrest, CA
Industry payments (Open Payments)
- 2025$531.06 · 6 payments from 5 companies
- 2024$1,337 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Acera Surgical, Inc. | $133.33 | 1 |
| Abanza Inc. | $116.75 | 1 |
| Medical Device Business Services, Inc. | $101.73 | 1 |
| Stryker Corporation | $101.56 | 2 |
| Depuy Synthes Sales Inc. | $77.69 | 1 |
What the 2025 payments were for
- Food and Beverage$531.06 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Orthopaedic Surgery providers in Mammoth Lakes
- 1972794097
- 1780265587
- 1073142501
- 1225561939