Philip James McDonald, M.D.
NPI 1952644122ActiveIndividual· Internal Medicine, Infectious Disease· Thousand Oaks, CA
Internal Medicine, Infectious Disease (M.D.) in Thousand Oaks, California, trained at Wayne State University School of Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $892,246 for 552 claims, against $24,979 paid for services in 2024. Insmed, Inc. was the largest of 2 companies reporting payments in 2025, $33.79 in all, mostly food and beverage.
Overview
| NPI | 1952644122 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 5, 2013 |
| Last updated in NPPES | Oct 15, 2025 |
| Certified by provider | Oct 15, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | C203711 | 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 - Infectious Disease (CA); Practitioner - Infectious Disease (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 97 |
|---|---|
| Services billed | 368 across 15 procedure codes |
| Paid by Medicare | $24,979 |
Part D prescriptions in 2024
| Prescriptions (claims) | 552 · 568 30-day fills |
|---|---|
| Patients | 89 |
| Total drug cost | $892,246 |
| Generic share | 62% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Infectious Disease |
| Telehealth | Offers telehealth |
Medical group
- Mark H Mazur MD and Barry Statner MD A Professional CorporationThousand Oaks, CA · 15 clinicians
Hospital affiliations
- Adventist Health Simi ValleySimi Valley, CA
- Los Robles Hospital & Medical CenterThousand Oaks, CA
- Northridge Hospital Medical CenterNorthridge, CA
Other facilities
- Access Tlc Home Health CareHome health agency · San Fernando, CA
Industry payments (Open Payments)
- 2025$33.79 · 2 payments from 2 companies
- 2024$17.46 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insmed, Inc. | $19.57 | 1 |
| Abbvie Inc. | $14.22 | 1 |
What the 2025 payments were for
- Food and Beverage$33.79 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other infectious disease specialists in Thousand Oaks
- 1184712168
- 1215025291
- 1528299708
- 1376631341
- 1245328228