Quick answers
- Which hospitals does Garry D. Ruben work at?
- Medicare's official clinician data lists Garry D. Ruben at 1 hospital: Holy Cross Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Garry D. Ruben see patients?
- Medicare's clinician data lists 1 practice location in Silver Spring, MD. Call before your visit to confirm the address.
- What is Garry D. Ruben's specialty?
- Medicare lists Vascular Surgery as the primary specialty, and also General Surgery.
- Does Garry D. Ruben accept Medicare assignment?
- Yes. Medicare's clinician data says Garry D. Ruben 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 Garry D. Ruben?
- (301) 681-3900, as listed in official Medicare / NPI Registry data.
- What is Garry D. Ruben's NPI number?
- 1871532663. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Garry D. Ruben works
Medicare's Facility Affiliation Data lists Garry D. Ruben 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 Garry D. Ruben is enrolled with Medicare (CMS data updated 2026-10-02).
- 11120 New Hampshire AveSilver Spring, MD 20904 (301) 681‑3900
Specialties
- Vascular Surgeryprimary
- General Surgeryalso
Other vascular surgeons in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871532663 |
| 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