Quick answers
- Which hospitals does Phillip G. Geiger work at?
- Medicare's official clinician data lists Phillip G. Geiger at 2 hospitals: Warren Memorial Hospital and Winchester Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Phillip G. Geiger see patients?
- Medicare's clinician data lists 1 practice location in Winchester, VA. Call before your visit to confirm the address.
- What is Phillip G. Geiger's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Phillip G. Geiger accept Medicare assignment?
- Yes. Medicare's clinician data says Phillip G. Geiger 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 Phillip G. Geiger?
- (540) 536-8000, as listed in official Medicare / NPI Registry data.
- What is Phillip G. Geiger's NPI number?
- 1790886638. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Phillip G. Geiger works
Medicare's Facility Affiliation Data lists Phillip G. Geiger at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Warren Memorial HospitalFront Royal, VA · Acute Care Hospital · CCN 490033
- Winchester Medical CenterWinchester, VA · Acute Care Hospital · CCN 490005
Practice locations
Addresses where Phillip G. Geiger is enrolled with Medicare (CMS data updated 2026-10-02).
- 1840 Amherst StWinchester, VA 22601 (540) 536‑8000
Group practices
Medicare enrollment lists Phillip G. Geiger as a member of this group (CMS data updated 2026-10-02).
- Valley Health Anesthesia Services, LLC125 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Winchester
Clinicians with the same Medicare primary specialty in Winchester, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790886638 |
| 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