John S. Tsakonas, M.D.
NPI 1851384499ActiveIndividual· Internal Medicine, Cardiovascular Disease· Encino, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Encino, California, trained at State University of New York at Stony Brook, School of Medicine (class of 1982). In 2024 Medicare paid $211,440 for 623 patients, and Part D covered 1,429 of their prescriptions, 84% of them generic. Novartis Pharmaceuticals Corporation was the largest of 3 companies reporting payments in 2025, $134.18 in all, mostly food and beverage.
Overview
| NPI | 1851384499 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 30, 2005 |
| Last updated in NPPES | Aug 12, 2022 |
| Certified by provider | Aug 12, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | G62791 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 623 |
|---|---|
| Services billed | 1,991 across 48 procedure codes |
| Paid by Medicare | $211,440 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,429 · 3,578 30-day fills |
|---|---|
| Patients | 290 |
| Total drug cost | $256,371 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | State University of New York at Stony Brook, School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical groups
- Beverly Radiology Medical Group IIICorona, CA · 328 clinicians
- Cardiovascular Consultants Medical GroupEncino, CA · 13 clinicians
Hospital affiliations
- Northridge Hospital Medical CenterNorthridge, CA
- Providence Cedars Sinai Tarzana Medical CenterTarzana, CA
- Providence Holy Cross Medical CenterMission Hills, CA
- Valley Presbyterian HospitalVan Nuys, CA
Industry payments (Open Payments)
- 2025$134.18 · 6 payments from 3 companies
- 2024$106.78 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $77.11 | 3 |
| Heartflow, Inc. | $39.17 | 2 |
| Medtronic, Inc. | $17.90 | 1 |
What the 2025 payments were for
- Food and Beverage$134.18 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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