Sarah Z. Hassan, M.D
NPI 1689935066ActiveIndividual· Internal Medicine, Hematology & Oncology· Fountain Valley, CA
Internal Medicine, Hematology & Oncology (M.D) in Fountain Valley, California, trained at Mercy College (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $537,882 for 762 claims, against $231,458 paid for services in 2024. Urgo Medical North America, LLC was the largest of 4 companies reporting payments in 2025, $398.86 in all, mostly food and beverage.
Overview
| NPI | 1689935066 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Jun 2, 2012 |
| Last updated in NPPES | May 27, 2021 |
| Certified by provider | May 27, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A156103 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 201 |
|---|---|
| Services billed | 16,854 across 70 procedure codes |
| Paid by Medicare | $231,458 |
Part D prescriptions in 2024
| Prescriptions (claims) | 762 · 1,817 30-day fills |
|---|---|
| Patients | 241 |
| Total drug cost | $537,882 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Mercy College |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Hospital affiliations
- Memorialcare Long Beach Medical CenterLong Beach, CA
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Industry payments (Open Payments)
- 2025$398.86 · 6 payments from 4 companies
- 2024$268.17 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Urgo Medical North America, LLC | $191.73 | 3 |
| Depuy Synthes Sales Inc. | $157.81 | 1 |
| Glaxosmithkline, LLC. | $26.60 | 1 |
| Amgen Inc. | $22.72 | 1 |
What the 2025 payments were for
- Food and Beverage$398.86 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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