Quick answers
- Where does Siham Mahgoub see patients?
- Medicare's clinician data lists 2 practice locations, including Washington, DC and Hampton, VA. Call before your visit to confirm the address.
- What is Siham Mahgoub's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Siham Mahgoub accept Medicare assignment?
- Yes. Medicare's clinician data says Siham Mahgoub 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.
- Does Siham Mahgoub offer telehealth?
- Medicare's clinician data says Siham Mahgoub offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Siham Mahgoub?
- (202) 865-6679, as listed in official Medicare / NPI Registry data.
- What is Siham Mahgoub's NPI number?
- 1194834754. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Siham Mahgoub is enrolled with Medicare (CMS data updated 2026-10-02).
- 2041 Georgia NW AveWashington, DC 20060 (202) 865‑6679
- 4000 Coliseum Dr, Suite 310Hampton, VA 23666 (757) 736‑2540
Group practices
Medicare enrollment lists Siham Mahgoub as a member of these groups (CMS data updated 2026-10-02).
- Sentara Medical Group1,408 clinicians in the group
- Howard University181 clinicians in the group
Specialties
- Internal Medicineprimary
Find other Internal Medicine doctors in District of Columbia →
Other internal medicine doctors in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1194834754 |
| 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
- 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