Joseph Yusaf Mardanzai, MD
NPI 1043220031ActiveIndividual· Internal Medicine· San Ramon, CA
Internal Medicine (MD) with Galen Inpatient Physicians PC and 1 other group, practicing in San Ramon, California. Their prescriptions cost Medicare Part D more than their services did: $14,653 for 168 claims, against $5,595 paid for services in 2024. Merz North America, Inc. was the largest of 2 companies reporting payments in 2025, $91.61 in all, mostly food and beverage. Lists Adventist Health Sierra Vista and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1043220031 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 9, 2006 |
| Last updated in NPPES | Sep 30, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A80856 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 38 |
|---|---|
| Services billed | 54 across 8 procedure codes |
| Paid by Medicare | $5,595 |
Part D prescriptions in 2024
| Prescriptions (claims) | 168 · 403 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $14,653 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Galen Inpatient Physicians PCHanford, CA · 1,077 clinicians
- Quantum Healthcare Medical Associates IncHilo, HI · 109 clinicians
Hospital affiliations
- Adventist Health Sierra VistaSan Luis Obispo, CA
- Adventist Health Twin CitiesTempleton, CA
- San Ramon Regional Medical CenterSan Ramon, CA
Industry payments (Open Payments)
- 2025$91.61 · 3 payments from 2 companies
- 2024$176.94 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merz North America, Inc. | $53.57 | 1 |
| Galderma Laboratories, L.P. | $38.04 | 2 |
What the 2025 payments were for
- Food and Beverage$91.61 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 internal medicine physicians in San Ramon · All internal medicine physicians in California