Diana Elizabeth Riley, M.P.H., M.S.,P.A.-C.
NPI 1730386046ActiveIndividual· Physician Assistant· Lakeport, CA
Physician Assistant (M.P.H., M.S.,P.A.-C.) with Lake County Tribal Health Consortium Inc, practicing in Lakeport, California. 1,256 Medicare patients in 2024, $308,853 paid; nearly all of their 913 Part D prescriptions were generic (95%). Novartis Pharmaceuticals Corporation was the largest of 6 companies reporting payments in 2025, $261.62 in all, mostly food and beverage. Lists California Pacific Medical Ctr-Davies Campus Hosp and 1 other hospital as hospital affiliations.
Overview
| NPI | 1730386046 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.P.H., M.S.,P.A.-C. |
| Sole proprietor | Yes |
| NPI issued | Jun 29, 2007 |
| Last updated in NPPES | May 3, 2023 |
| Certified by provider | May 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 16295 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,256 |
|---|---|
| Services billed | 7,038 across 59 procedure codes |
| Paid by Medicare | $308,853 |
Part D prescriptions in 2024
| Prescriptions (claims) | 913 · 984 30-day fills |
|---|---|
| Patients | 384 |
| Total drug cost | $237,671 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Lake County Tribal Health Consortium IncLakeport, CA · 43 clinicians
Hospital affiliations
- California Pacific Medical Ctr-Davies Campus HospSan Francisco, CA
- Sutter Lakeside HospitalLakeport, CA
Industry payments (Open Payments)
- 2025$261.62 · 11 payments from 6 companies
- 2024$419.38 · 15 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $87.73 | 4 |
| Janssen Biotech, Inc. | $71.76 | 2 |
| Genzyme Corporation | $45.62 | 2 |
| Regeneron Healthcare Solutions, Inc. | $28.67 | 1 |
| Arcutis Biotherapeutics, Inc. | $21.85 | 1 |
What the 2025 payments were for
- Food and Beverage$261.62 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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