Michael Nicholas Papanicolaou, M.D.
NPI 1922038967ActiveIndividual· Internal Medicine, Cardiovascular Disease· Thousand Oaks, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Thousand Oaks, California, trained at Duke University School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $2,368,035 for 7,733 claims, against $1,347,959 paid for services in 2024. Medtronic, Inc. was the largest of 18 companies reporting payments in 2025, $2,772 in all, mostly food and beverage.
Overview
| NPI | 1922038967 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 4, 2006 |
| Last updated in NPPES | Oct 17, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A43353 | 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 | 1,528 |
|---|---|
| Services billed | 8,280 across 43 procedure codes |
| Paid by Medicare | $1,347,959 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,733 · 20,831 30-day fills |
|---|---|
| Patients | 946 |
| Total drug cost | $2,368,035 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Duke University School of Medicine |
|---|---|
| Graduation year | 1985 |
| 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
- Providence Cedars Sinai Tarzana Medical CenterTarzana, CA
Industry payments (Open Payments)
- 2025$2,772 · 130 payments from 18 companies
- 2024$2,779 · 133 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $688.45 | 30 |
| Edwards Lifesciences Corporation | $286.05 | 8 |
| Novartis Pharmaceuticals Corporation | $233.97 | 11 |
| Bridgebio Pharma, Inc. | $219.41 | 8 |
| Merck Sharp & Dohme LLC | $201.30 | 7 |
What the 2025 payments were for
- Food and Beverage$2,772 · 130 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