Dennis P. Lewis, MD
NPI 1780608190ActiveIndividual· Family Medicine· Valencia, CA
Family Medicine (MD) in Valencia, California, trained at University of California, Geffen School of Medicine (class of 1992). In 2024 Medicare paid $234,550 for 851 patients, and Part D covered 1,977 of their prescriptions, 87% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 13 companies reporting payments in 2025, $1,075 in all, mostly food and beverage.
Overview
| NPI | 1780608190 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 27, 2006 |
| Last updated in NPPES | Aug 7, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | G78417 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 851 |
|---|---|
| Services billed | 3,982 across 65 procedure codes |
| Paid by Medicare | $234,550 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,977 · 4,322 30-day fills |
|---|---|
| Patients | 389 |
| Total drug cost | $178,945 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Family Practice |
Hospital affiliation
- Henry Mayo Newhall HospitalValencia, CA
Other facilities
- Priority Home Health Group, Inc.Home health agency · Santa Clarita, CA
Industry payments (Open Payments)
- 2025$1,075 · 50 payments from 13 companies
- 2024$844.35 · 48 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $336.69 | 17 |
| Lilly USA, LLC | $200.35 | 7 |
| Novo Nordisk Inc | $111.87 | 6 |
| Amgen Inc. | $81.78 | 5 |
| Exact Sciences Corporation | $67.46 | 3 |
What the 2025 payments were for
- Food and Beverage$1,075 · 50 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 44 family medicine physicians in Valencia · All family medicine physicians in California