William Cooper Longton, MD
NPI 1275625204ActiveIndividual· Anesthesiology· Walnut Creek, CA
Anesthesiology (MD) in Walnut Creek, California, trained at University of Arizona College of Medicine (class of 1989). 915 Medicare patients in 2024, $674,093 paid; nearly all of their 833 Part D prescriptions were generic (95%). Boston Scientific Corporation was the largest of 2 companies reporting payments in 2025, $74.05 in all, mostly food and beverage.
Overview
| NPI | 1275625204 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 28, 2006 |
| Last updated in NPPES | Jun 16, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | G71946 | 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 - Pain Management (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 915 |
|---|---|
| Services billed | 8,394 across 92 procedure codes |
| Paid by Medicare | $674,093 |
Part D prescriptions in 2024
| Prescriptions (claims) | 833 · 875 30-day fills |
|---|---|
| Patients | 170 |
| Total drug cost | $29,242 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Pain Management |
| Telehealth | Offers telehealth |
Medical group
- Bass Medical GroupChico, CA · 291 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$74.05 · 2 payments from 2 companies
- 2024$239.37 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $43.49 | 1 |
| Saluda Medical Americas, Inc. | $30.56 | 1 |
What the 2025 payments were for
- Food and Beverage$74.05 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 104 anesthesiologists in Walnut Creek · All anesthesiologists in California