Quick answers
- Which hospitals does Marwa Hammoud work at?
- Medicare's official clinician data lists Marwa Hammoud at 1 hospital: Oroville Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marwa Hammoud see patients?
- Medicare's clinician data lists 3 practice locations, including Yuba City, CA, Oroville, CA and Gridley, CA. Call before your visit to confirm the address.
- What is Marwa Hammoud's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Infectious Disease.
- Does Marwa Hammoud accept Medicare assignment?
- Yes. Medicare's clinician data says Marwa Hammoud accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Marwa Hammoud?
- (530) 673-9420, as listed in official Medicare / NPI Registry data.
- What is Marwa Hammoud's NPI number?
- 1528391950. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marwa Hammoud works
Medicare's Facility Affiliation Data lists Marwa Hammoud at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Oroville HospitalOroville, CA · Acute Care Hospital · CCN 050030
Practice locations
Addresses where Marwa Hammoud is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Sutter StYuba City, CA 95991 (530) 673‑9420
- 2800 Lincoln StOroville, CA 95966 (530) 534‑7500
- 520 Kentucky StGridley, CA 95948 (530) 846‑6231
Group practices
Medicare enrollment lists Marwa Hammoud as a member of this group (CMS data updated 2026-10-02).
- Ampla Health101 clinicians in the group
Specialties
- Internal Medicineprimary
- Infectious Diseasealso
Other internal medicine doctors in Yuba City
Clinicians with the same Medicare primary specialty in Yuba City, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528391950 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians