Quick answers
- Which hospitals does Gaby A. Weissman work at?
- Medicare's official clinician data lists Gaby A. Weissman at 5 hospitals: MedStar Georgetown University Hospital, MedStar Good Samaritan Hospital, MedStar Southern Maryland Hospital Center, MedStar Union Memorial Hospital and MedStar Washington Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gaby A. Weissman see patients?
- Medicare's clinician data lists 4 practice locations, including Washington, DC and Clinton, MD. Call before your visit to confirm the address.
- What is Gaby A. Weissman's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Gaby A. Weissman accept Medicare assignment?
- Yes. Medicare's clinician data says Gaby A. Weissman 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 Gaby A. Weissman?
- (202) 877-2851, as listed in official Medicare / NPI Registry data.
- What is Gaby A. Weissman's NPI number?
- 1629010285. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gaby A. Weissman works
Medicare's Facility Affiliation Data lists Gaby A. Weissman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MedStar Georgetown University HospitalWashington, DC · Acute Care Hospital · CCN 090004
- MedStar Good Samaritan HospitalBaltimore, MD · Acute Care Hospital · CCN 210056
- MedStar Southern Maryland Hospital CenterClinton, MD · Acute Care Hospital · CCN 210062
- MedStar Union Memorial HospitalBaltimore, MD · Acute Care Hospital · CCN 210024
- MedStar Washington Hospital CenterWashington, DC · Acute Care Hospital · CCN 090011
Practice locations
Addresses where Gaby A. Weissman is enrolled with Medicare (CMS data updated 2026-10-02).
- 110 Irving St NWWashington, DC 20010 (202) 877‑2851
- 1145 19th St NW, 311 Mmg at 19th Street NWWashington, DC 20036 (202) 429‑2401
- 3800 Reservoir Rd NWWashington, DC 20007 (202) 444‑5111
- 7503 Surratts RdClinton, MD 20735 (301) 868‑8000
Group practices
Medicare enrollment lists Gaby A. Weissman as a member of these groups (CMS data updated 2026-10-02).
- MedStar Medical Group II LLC3,767 clinicians in the group
- MedStar Heart Institute LLC301 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in District of Columbia →
Other cardiologists in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629010285 |
| 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