John Ross Williams, DO
NPI 1518450113ActiveIndividual· Hospitalist· Redding, CA
Hospitalist (DO) with Vituity Hospitalists PC, practicing in Redding, California. In 2024 Medicare paid $141,046 for 512 patients, and Part D covered 296 of their prescriptions, 85% of them generic. Lists Mercy Medical Center Redding and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1518450113 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 8, 2018 |
| Last updated in NPPES | Nov 29, 2023 |
| Certified by provider | Nov 29, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 21824 | CA |
| Hospitalist | 208M00000X | 009067 | AZ |
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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 512 |
|---|---|
| Services billed | 1,580 across 8 procedure codes |
| Paid by Medicare | $141,046 |
Part D prescriptions in 2024
| Prescriptions (claims) | 296 · 310 30-day fills |
|---|---|
| Patients | 118 |
| Total drug cost | $18,238 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Hospitalist |
Medical group
- Vituity Hospitalists PCRedwood City, CA · 79 clinicians
Hospital affiliations
- Mercy Medical Center ReddingRedding, CA
- Shasta Regional Medical CenterRedding, CA
- St Elizabeth Community HospitalRed Bluff, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 hospitalists in Redding · All hospitalists in California