Warren F. Wiechmann, MD
NPI 1376729780ActiveIndividual· Emergency Medicine· Fresno, CA
Emergency Medicine (MD) in Fresno, California, trained at University of California, Irvine, California College of Medicine (class of 2006). Mostly services rather than prescriptions: Medicare paid $25,123 for 177 patients in 2024, with only 34 Part D claims. Inari Medical, Inc. reported $144.03 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1376729780 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 15, 2008 |
| Last updated in NPPES | Dec 3, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A104250 | CA |
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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 177 |
|---|---|
| Services billed | 225 across 28 procedure codes |
| Paid by Medicare | $25,123 |
Part D prescriptions in 2024
| Prescriptions (claims) | 34 · 35 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $865.95 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Emergency Medicine |
Medical group
- Regents of the University ofOrange, CA · 129 clinicians
Hospital affiliation
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2024$144.03 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Inari Medical, Inc. | $144.03 | 1 |
What the 2024 payments were for
- Food and Beverage$144.03 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 239 emergency medicine physicians in Fresno · All emergency medicine physicians in California