Quick answers
- Which hospitals does Mark T. Leonard work at?
- Medicare's official clinician data lists Mark T. Leonard at 3 hospitals: Valley Health War Memorial Hospital, Warren Memorial Hospital and Winchester Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark T. Leonard see patients?
- Medicare's clinician data lists 2 practice locations, including Winchester, VA. Call before your visit to confirm the address.
- What is Mark T. Leonard's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Mark T. Leonard accept Medicare assignment?
- Yes. Medicare's clinician data says Mark T. Leonard 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 Mark T. Leonard?
- (540) 536-8700, as listed in official Medicare / NPI Registry data.
- What is Mark T. Leonard's NPI number?
- 1346287919. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark T. Leonard works
Medicare's Facility Affiliation Data lists Mark T. Leonard at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Valley Health War Memorial HospitalBerkeley Springs, WV · Critical Access Hospital · CCN 511309
- Warren Memorial HospitalFront Royal, VA · Acute Care Hospital · CCN 490033
- Winchester Medical CenterWinchester, VA · Acute Care Hospital · CCN 490005
Practice locations
Addresses where Mark T. Leonard is enrolled with Medicare (CMS data updated 2026-10-02).
- 1840 Amherst StWinchester, VA 22601 (540) 536‑8700
- 1870 Amherst St, Suite 2eWinchester, VA 22601 (540) 667‑4546
Group practices
Medicare enrollment lists Mark T. Leonard as a member of this group (CMS data updated 2026-10-02).
- Winchester Medical Center317 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Winchester
Clinicians with the same Medicare primary specialty in Winchester, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346287919 |
| 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