Quick answers
- Which hospitals does Christopher J. Testa work at?
- Medicare's official clinician data lists Christopher J. Testa at 5 hospitals: Adventist Healthcare Shady Grove Medical Center, George Washington Univ Hospital, MedStar Washington Hospital Center, Sibley Memorial Hospital and Suburban Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Christopher J. Testa see patients?
- Medicare's clinician data lists 5 practice locations, including Washington, DC, Columbia, MD and Bethesda, MD. Call before your visit to confirm the address.
- What is Christopher J. Testa's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Christopher J. Testa accept Medicare assignment?
- Medicare's clinician data says Christopher J. Testa may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Christopher J. Testa?
- (202) 537-4795, as listed in official Medicare / NPI Registry data.
- What is Christopher J. Testa's NPI number?
- 1538494877. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Christopher J. Testa works
Medicare's Facility Affiliation Data lists Christopher J. Testa at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Healthcare Shady Grove Medical CenterRockville, MD · Acute Care Hospital · CCN 210057
- George Washington Univ HospitalWashington, DC · Acute Care Hospital · CCN 090001
- MedStar Washington Hospital CenterWashington, DC · Acute Care Hospital · CCN 090011
- Sibley Memorial HospitalWashington, DC · Acute Care Hospital · CCN 090005
- Suburban HospitalBethesda, MD · Acute Care Hospital · CCN 210022
Practice locations
Addresses where Christopher J. Testa is enrolled with Medicare (CMS data updated 2026-10-02).
- 5255 Loughboro Road NW, Sibley Memorial HospitalWashington, DC 20016 (202) 537‑4795
- 5755 Cedar LnColumbia, MD 21044
- 5759 Cedar LnColumbia, MD 21044
- 6420 Rockledge DrBethesda, MD 20817 (301) 897‑5656
- 8600 Old Georgetown RdBethesda, MD 20814 (301) 896‑3100
Group practices
Medicare enrollment lists Christopher J. Testa as a member of these groups (CMS data updated 2026-10-02).
- Johns Hopkins University2,909 clinicians in the group
- Johns Hopkins University713 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Find other Diagnostic Radiology doctors in District of Columbia →
Other radiologists in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1538494877 |
| 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