William Fisher, M.D.
NPI 1245674001ActiveIndividual· Internal Medicine, Critical Care Medicine· San Diego, CA
Internal Medicine, Critical Care Medicine (M.D.) in San Diego, California, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 2013). Mostly services rather than prescriptions: Medicare paid $81,859 for 284 patients in 2024, with only 13 Part D claims. Olympus Medical Systems Corporation reported $1,100 in payments in 2025, mostly travel and lodging.
Overview
| NPI | 1245674001 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 24, 2013 |
| Last updated in NPPES | Sep 14, 2023 |
| Certified by provider | Sep 14, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | A137269 | CA |
| Internal Medicine | 207R00000X | A137269 | CA |
| Internal Medicine, Pulmonary Disease | 207RP1001X | A137269 | CA |
| Internal Medicine, Sleep Medicine | 207RS0012X | A137269 | 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 - Critical Care (Intensivists) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 284 |
|---|---|
| Services billed | 682 across 20 procedure codes |
| Paid by Medicare | $81,859 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13 · 15 30-day fills |
|---|---|
| Total drug cost | $352.85 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Pulmonary Disease |
Medical groups
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
- San Francisco Critical Care Med Group IncSan Francisco, CA · 18 clinicians
Hospital affiliations
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- California Pacific Medical Ctr-Davies Campus HospSan Francisco, CA
Other facilities
- Giving Hands Home Health Care, IncHome health agency · Encino, CA
Industry payments (Open Payments)
- 2025$1,100 · 2 payments from 1 company
- 2024$550.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus Medical Systems Corporation | $1,100 | 2 |
What the 2025 payments were for
- Travel and Lodging$733.33 · 1 payment
- Consulting Fee$366.67 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 critical care physicians in San Diego · All critical care physicians in California