Quick answers
- Which hospitals does Gary Fennel work at?
- Medicare's official clinician data lists Gary Fennel at 1 hospital: Adventist Healthcare White Oak Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gary Fennel see patients?
- Medicare's clinician data lists 1 practice location in Rockville, MD. Call before your visit to confirm the address.
- What is Gary Fennel's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Gary Fennel accept Medicare assignment?
- Yes. Medicare's clinician data says Gary Fennel 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 Gary Fennel?
- (301) 279-6000, as listed in official Medicare / NPI Registry data.
- What is Gary Fennel's NPI number?
- 1295889418. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gary Fennel works
Medicare's Facility Affiliation Data lists Gary Fennel at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Healthcare White Oak Medical CenterSilver Spring, MD · Acute Care Hospital · CCN 210016
Practice locations
Addresses where Gary Fennel is enrolled with Medicare (CMS data updated 2026-10-02).
- 9901 Medical Ctr DrRockville, MD 20850 (301) 279‑6000
Group practices
Medicare enrollment lists Gary Fennel as a member of this group (CMS data updated 2026-10-02).
- Adventist Physician Services Inc148 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Rockville
Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295889418 |
| 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