Mark Kubik, MD
NPI 1174746325ActiveIndividual· Internal Medicine, Geriatric Medicine· Greenbrae, CA
Internal Medicine, Geriatric Medicine (MD) in Greenbrae, California, trained at University of Southern California Keck School of Medicine (class of 1976). Their prescriptions cost Medicare Part D more than their services did: $63,156 for 576 claims, against $35,311 paid for services in 2024.
Overview
| NPI | 1174746325 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 10, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | G35704 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 91 |
|---|---|
| Services billed | 377 across 13 procedure codes |
| Paid by Medicare | $35,311 |
Part D prescriptions in 2024
| Prescriptions (claims) | 576 · 1,077 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $63,156 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Family Practice |
| Secondary specialties | Geriatric Medicine |
Hospital affiliations
- Marinhealth Medical CenterGreenbrae, CA
- Novato Community HospitalNovato, CA
Other facilities
- By the Bay HealthHospice · Larkspur, CA
- Villa MarinNursing home · San Rafael, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other geriatricians in Greenbrae
- 1124133111
- 1316087612