William M. Mills, M.D.
NPI 1497779300ActiveIndividual· Emergency Medicine· Walnut Creek, CA
Emergency Medicine (M.D.) in Walnut Creek, California, trained at Baylor College of Medicine (class of 1993). 426 Medicare patients in 2024, $64,124 paid; nearly all of their 204 Part D prescriptions were generic (90%). Globus Medical, Inc. reported $50.33 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1497779300 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Oct 26, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A62432 | 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 | 426 |
|---|---|
| Services billed | 518 across 32 procedure codes |
| Paid by Medicare | $64,124 |
Part D prescriptions in 2024
| Prescriptions (claims) | 204 · 212 30-day fills |
|---|---|
| Patients | 140 |
| Total drug cost | $4,608 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Emergency Medicine |
Medical groups
- Cep America - CaliforniaPomona, CA · 1,292 clinicians
- Eastern Plumas Health Care DistrictPortola, CA · 29 clinicians
Hospital affiliations
- Eastern Plumas Hospital - Portola CampusPortola, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2024$50.33 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Globus Medical, Inc. | $50.33 | 1 |
What the 2024 payments were for
- Food and Beverage$50.33 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 100 emergency medicine physicians in Walnut Creek · All emergency medicine physicians in California