Christopher Michael Purmer, M.D.
NPI 1124058169ActiveIndividual· Internal Medicine, Cardiovascular Disease· Thousand Oaks, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Thousand Oaks, California, trained at R Franklin University of Med & Sci/Chicago Medical School (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $2,283,976 for 8,893 claims, against $594,368 paid for services in 2024. Medtronic, Inc. was the largest of 19 companies reporting payments in 2025, $2,901 in all, mostly food and beverage.
Overview
| NPI | 1124058169 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 4, 2006 |
| Last updated in NPPES | Feb 14, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | G74571 | 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 - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,108 |
|---|---|
| Services billed | 6,443 across 42 procedure codes |
| Paid by Medicare | $594,368 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,893 · 23,392 30-day fills |
|---|---|
| Patients | 1,216 |
| Total drug cost | $2,283,976 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | R Franklin University of Med & Sci/Chicago Medical School |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
Medical group
- Heart Center CardiologyThousand Oaks, CA · 2 clinicians
Hospital affiliations
- Los Robles Hospital & Medical CenterThousand Oaks, CA
- Northridge Hospital Medical CenterNorthridge, CA
Industry payments (Open Payments)
- 2025$2,901 · 135 payments from 19 companies
- 2024$2,688 · 140 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $518.67 | 29 |
| Biotronik Inc. | $314.17 | 6 |
| Edwards Lifesciences Corporation | $286.06 | 8 |
| Novartis Pharmaceuticals Corporation | $258.14 | 12 |
| Merck Sharp & Dohme LLC | $201.30 | 7 |
What the 2025 payments were for
- Food and Beverage$2,901 · 135 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 cardiologists in Thousand Oaks · All cardiologists in California