Matthew Blake Warren, MD
NPI 1124412275ActiveIndividual· Internal Medicine, Critical Care Medicine· Riverside, CA
Internal Medicine, Critical Care Medicine (MD) with Department of State Hospitals, practicing in Riverside, California. In 2024 Medicare paid $17,724 for 55 patients, and Part D covered 72 of their prescriptions, 76% of them generic. Exact Sciences Corporation reported $62.08 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1124412275 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 26, 2015 |
| Last updated in NPPES | Mar 23, 2022 |
| Certified by provider | Mar 23, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | A170797 | CA |
| Internal Medicine, Pulmonary Disease | 207RP1001X | A170797 | 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 - Critical Care (Intensivists) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 55 |
|---|---|
| Services billed | 176 across 11 procedure codes |
| Paid by Medicare | $17,724 |
Part D prescriptions in 2024
| Prescriptions (claims) | 72 · 73 30-day fills |
|---|---|
| Total drug cost | $5,197 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Pulmonary Disease |
Medical group
- Department of State HospitalsNapa, CA · 270 clinicians
Industry payments (Open Payments)
- 2024$62.08 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $62.08 | 1 |
What the 2024 payments were for
- Food and Beverage$62.08 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other critical care physicians in Riverside
- 1003983925
- 1053709071
- 1083712236
- 1205829843
- 1225287881
- 1730376179
- 1811122799
- 1861758823
- 1952327355
- 1306427927
- 1073069332
- 1164695037
All 26 critical care physicians in Riverside · All critical care physicians in California