Quick answers
- Which hospitals does Andrew Keenan work at?
- Medicare's official clinician data lists Andrew Keenan at 5 hospitals: MedStar Franklin Square Medical Center, MedStar Saint Mary's Hospital, MedStar Southern Maryland Hospital Center, MedStar Washington Hospital Center and University of MD Capital Region Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andrew Keenan see patients?
- Medicare's clinician data lists 6 practice locations, including Marietta, GA, Leonardtown, MD and Chesapeake Beach, MD. Call before your visit to confirm the address.
- What is Andrew Keenan's specialty?
- Medicare lists Nuclear Medicine as the primary specialty.
- Does Andrew Keenan accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew Keenan 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 Andrew Keenan?
- (240) 434-4088, as listed in official Medicare / NPI Registry data.
- What is Andrew Keenan's NPI number?
- 1467405175. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew Keenan works
Medicare's Facility Affiliation Data lists Andrew Keenan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MedStar Franklin Square Medical CenterRosedale, MD · Acute Care Hospital · CCN 210015
- MedStar Saint Mary's HospitalLeonardtown, MD · Acute Care Hospital · CCN 210028
- MedStar Southern Maryland Hospital CenterClinton, MD · Acute Care Hospital · CCN 210062
- MedStar Washington Hospital CenterWashington, DC · Acute Care Hospital · CCN 090011
- University of MD Capital Region Medical CenterUpper Marlboro, MD · Acute Care Hospital · CCN 210003
Practice locations
Addresses where Andrew Keenan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 2243 Ridgewood CtMarietta, GA 30066
- 25500 Point Lookout RdLeonardtown, MD 20650 (240) 434‑4088
- 2831 McDuff DrChesapeake Beach, MD 20732
- 3800 Reservoir Rd NWWashington, DC 20007 (202) 444‑2000
- 9000 Franklin Square DrBaltimore, MD 21237 (443) 777‑7000
Group practices
Medicare enrollment lists Andrew Keenan as a member of this group (CMS data updated 2026-10-02).
- MedStar Medical Group II LLC3,767 clinicians in the group
Specialties
- Nuclear Medicineprimary
Other nuclear medicine doctors in Georgia
Clinicians with the same Medicare primary specialty in Georgia — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467405175 |
| 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