Quick answers
- Which hospitals does Catherine Ellis work at?
- Medicare's official clinician data lists Catherine Ellis at 1 hospital: Inova Loudoun Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Catherine Ellis see patients?
- Medicare's clinician data lists 2 practice locations, including Leesburg, VA and Dulles, VA. Call before your visit to confirm the address.
- What is Catherine Ellis's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does Catherine Ellis accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine Ellis 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 Catherine Ellis offer telehealth?
- Medicare's clinician data says Catherine Ellis offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Catherine Ellis?
- (703) 844-8380, as listed in official Medicare / NPI Registry data.
- What is Catherine Ellis's NPI number?
- 1548473150. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Catherine Ellis works
Medicare's Facility Affiliation Data lists Catherine Ellis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Inova Loudoun HospitalLeesburg, VA · Acute Care Hospital · CCN 490043
Practice locations
Addresses where Catherine Ellis is enrolled with Medicare (CMS data updated 2026-10-02).
- 19450 Deerfield Ave, Suite 200Leesburg, VA 20176 (703) 844‑8380
- 24430 Stone Springs Blvd, Unit 100Dulles, VA 20166 (703) 293‑5244
Group practices
Medicare enrollment lists Catherine Ellis as a member of this group (CMS data updated 2026-10-02).
- Loudoun Medical Group, PC271 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Virginia
Clinicians with the same Medicare primary specialty in Virginia — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1548473150 |
| 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