Quick answers
- Which hospitals does Allison C. Warren work at?
- Medicare's official clinician data lists Allison C. Warren at 2 hospitals: George Washington Univ Hospital and Suburban Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Allison C. Warren see patients?
- Medicare's clinician data lists 2 practice locations, including Hagerstown, MD and Chevy Chase, MD. Call before your visit to confirm the address.
- What is Allison C. Warren's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Allison C. Warren accept Medicare assignment?
- Yes. Medicare's clinician data says Allison C. Warren 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.
- Does Allison C. Warren offer telehealth?
- Medicare's clinician data says Allison C. Warren offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Allison C. Warren?
- (301) 656-5050, as listed in official Medicare / NPI Registry data.
- What is Allison C. Warren's NPI number?
- 1558378331. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Allison C. Warren works
Medicare's Facility Affiliation Data lists Allison C. Warren at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- George Washington Univ HospitalWashington, DC · Acute Care Hospital · CCN 090001
- Suburban HospitalBethesda, MD · Acute Care Hospital · CCN 210022
Practice locations
Addresses where Allison C. Warren is enrolled with Medicare (CMS data updated 2026-10-02).
- 11236 Robinwood Dr, Suite 202Hagerstown, MD 21742 (301) 656‑5050
- 5530 Wisconsin Ave, Suite 700Chevy Chase, MD 20815 (301) 656‑5050
Group practices
Medicare enrollment lists Allison C. Warren as a member of this group (CMS data updated 2026-10-02).
- Cardiocare LLC16 clinicians in the group
Specialties
Other cardiac electrophysiologists in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Missouri, Columbia School Of Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558378331 |
| 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