Timothy Michael Wimmer, M.D.
NPI 1811955735ActiveIndividual· Orthopaedic Surgery· Eureka, CA
Orthopaedic Surgery (M.D.) with Providence Medical Foundation, practicing in Eureka, California. 316 Medicare patients in 2024, $137,802 paid; all of their 156 Part D prescriptions were generic. Arthrex, Inc. was the largest of 2 companies reporting payments in 2025, $497.15 in all, mostly food and beverage. Lists Mad River Community Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1811955735 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 2, 2006 |
| Last updated in NPPES | Sep 17, 2024 |
| Certified by provider | Sep 17, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | C54546 | CA |
| Orthopaedic Surgery | 207X00000X | IN 01055470 | IN |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 316 |
|---|---|
| Services billed | 2,154 across 74 procedure codes |
| Paid by Medicare | $137,802 |
Part D prescriptions in 2024
| Prescriptions (claims) | 156 · 164 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $2,286 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliations
- Mad River Community HospitalArcata, CA
- Providence Redwood Memorial HospitalFortuna, CA
- Providence St Joseph HospitalEureka, CA
Industry payments (Open Payments)
- 2025$497.15 · 7 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Arthrex, Inc. | $337.91 | 5 |
| Wildwood Medical LLC | $159.24 | 2 |
What the 2025 payments were for
- Food and Beverage$289.96 · 6 payments
- Travel and Lodging$207.19 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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