Paul Marian Cisarik, MD
NPI 1952515421ActiveIndividual· Internal Medicine· Oxnard, CA
Internal Medicine (MD) with Community Memorial Health System, practicing in Oxnard, California. Their prescriptions cost Medicare Part D more than their services did: $487,173 for 4,147 claims, against $65,370 paid for services in 2024. Novo Nordisk Inc was the largest of 12 companies reporting payments in 2025, $953.08 in all, mostly food and beverage. Lists Community Memorial Hospital - Ventura and 1 other hospital as hospital affiliations.
Overview
| NPI | 1952515421 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 10, 2007 |
| Last updated in NPPES | Oct 12, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | C151923 | CA |
| Internal Medicine | 207R00000X | 57009970 | OH |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 174 |
|---|---|
| Services billed | 1,261 across 30 procedure codes |
| Paid by Medicare | $65,370 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,147 · 9,000 30-day fills |
|---|---|
| Patients | 297 |
| Total drug cost | $487,173 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Community Memorial Health SystemOxnard, CA · 185 clinicians
Hospital affiliations
- Community Memorial Hospital - VenturaVentura, CA
- St Johns Regional Medical CenterOxnard, CA
Other facilities
- Assisted Home CareHome health agency · Ventura, CA
- Los Robles HealthcareHome health agency · Thousand Oaks, CA
Industry payments (Open Payments)
- 2025$953.08 · 46 payments from 12 companies
- 2024$648.45 · 31 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $230.53 | 12 |
| Abbvie Inc. | $172.74 | 7 |
| Amgen Inc. | $128.69 | 5 |
| Pfizer Inc. | $117.22 | 7 |
| Lilly USA, LLC | $83.25 | 4 |
What the 2025 payments were for
- Food and Beverage$953.08 · 46 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 50 internal medicine physicians in Oxnard · All internal medicine physicians in California