Joseph Barouk Marzouk, M.D.
NPI 1174636393ActiveIndividual· Internal Medicine, Infectious Disease· Oakland, CA
Internal Medicine, Infectious Disease (M.D.) in Oakland, California, trained at Boston University School of Medicine (class of 1976). Their prescriptions cost Medicare Part D more than their services did: $394,048 for 112 claims, against $7,407 paid for services in 2024.
Overview
| NPI | 1174636393 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 15, 2006 |
| Last updated in NPPES | Sep 22, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | G41722 | 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 - Infectious Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 66 across 4 procedure codes |
| Paid by Medicare | $7,407 |
Part D prescriptions in 2024
| Prescriptions (claims) | 112 · 126 30-day fills |
|---|---|
| Patients | 11 |
| Total drug cost | $394,048 |
| Generic share | 10% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Medical group
- Alameda Health SystemOakland, CA · 601 clinicians
Hospital affiliations
- Alameda HospitalAlameda, CA
- Alta Bates Summit Medical CenterOakland, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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