Quick answers
- Which hospitals does Sally A. Markell work at?
- Medicare's official clinician data lists Sally A. Markell at 1 hospital: Sibley Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sally A. Markell see patients?
- Medicare's clinician data lists 6 practice locations, including Washington, DC, Warrenton, VA and Bethesda, MD. Call before your visit to confirm the address.
- What is Sally A. Markell's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Sally A. Markell accept Medicare assignment?
- Yes. Medicare's clinician data says Sally A. Markell 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 Sally A. Markell offer telehealth?
- Medicare's clinician data says Sally A. Markell offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Sally A. Markell?
- (202) 244-0812, as listed in official Medicare / NPI Registry data.
- What is Sally A. Markell's NPI number?
- 1851720783. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sally A. Markell works
Medicare's Facility Affiliation Data lists Sally A. Markell at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sibley Memorial HospitalWashington, DC · Acute Care Hospital · CCN 090005
Practice locations
Addresses where Sally A. Markell is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 4910 Massachusetts NwaveWashington, DC 20016 (202) 244‑0812
- 500 Hospital DrWarrenton, VA 20186 (540) 316‑5000
- 5616 Shields DrBethesda, MD 20817 (301) 897‑5522
- 6410 Rockledge DrBethesda, MD 20817
- 6410 Rockledge Dr, Suite 600Bethesda, MD 20817
Group practices
Medicare enrollment lists Sally A. Markell as a member of these groups (CMS data updated 2026-10-02).
- Privia Medical Group, LLC1,533 clinicians in the group
- Suburban/Nrh Medical Rehabilitation Inc941 clinicians in the group
- Virginia Emergency Medicine Assoicates Ltd8 clinicians in the group
Specialties
- Nurse Practitionerprimary
Find other clinicians: Nurse Practitioner, District of Columbia →
Other nurse practitioners in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851720783 |
| 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