William Keith Marek, PH.D.
NPI 1851560544ActiveIndividual· Psychologist· San Ramon, CA
Psychologist (PH.D.) with Sud Specialty Group - Ca, practicing in San Ramon, California. Medicare paid $148,339 for services to 176 patients in 2024.
Overview
| NPI | 1851560544 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PH.D. |
| Sole proprietor | Yes |
| NPI issued | Feb 27, 2008 |
| Last updated in NPPES | Feb 27, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychologist Primary | 103T00000X | PSY 14791 | 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 - Clinical Psychologist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 176 |
|---|---|
| Services billed | 2,049 across 5 procedure codes |
| Paid by Medicare | $148,339 |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Clinical Psychologist |
| Telehealth | Offers telehealth |
Medical group
- Sud Specialty Group - CaSanta Clara, CA · 568 clinicians
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