Quick answers
- Which hospitals does Hamdi Abdeen work at?
- Medicare's official clinician data lists Hamdi Abdeen at 1 hospital: Holy Cross Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Hamdi Abdeen see patients?
- Medicare's clinician data lists 2 practice locations, including Largo, MD and Gaithersburg, MD. Call before your visit to confirm the address.
- What is Hamdi Abdeen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Hamdi Abdeen accept Medicare assignment?
- Yes. Medicare's clinician data says Hamdi Abdeen 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 Hamdi Abdeen?
- (301) 618-5700, as listed in official Medicare / NPI Registry data.
- What is Hamdi Abdeen's NPI number?
- 1245972413. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Hamdi Abdeen works
Medicare's Facility Affiliation Data lists Hamdi Abdeen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Holy Cross HospitalSilver Spring, MD · Acute Care Hospital · CCN 210004
Practice locations
Addresses where Hamdi Abdeen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1221 Mercantile LnLargo, MD 20774 (301) 618‑5700
- 655 Watkins Mill RdGaithersburg, MD 20879 (240) 632‑4000
Group practices
Medicare enrollment lists Hamdi Abdeen as a member of this group (CMS data updated 2026-10-02).
- Kaiser Foundation Health Plan of the Mid Atlantic States, Inc1,899 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Largo
Clinicians with the same Medicare primary specialty in Largo, MD — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245972413 |
| 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