Quick answers
- Which hospitals does John T. McAllister work at?
- Medicare's official clinician data lists John T. McAllister at 2 hospitals: Inova Fair Oaks Hospital and Virginia Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John T. McAllister see patients?
- Medicare's clinician data lists 3 practice locations, including Fairfax, VA, Falls Church, VA and Manassas, VA. Call before your visit to confirm the address.
- What is John T. McAllister's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does John T. McAllister accept Medicare assignment?
- Yes. Medicare's clinician data says John T. McAllister 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 John T. McAllister?
- (703) 620-2701, as listed in official Medicare / NPI Registry data.
- What is John T. McAllister's NPI number?
- 1548575921. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John T. McAllister works
Medicare's Facility Affiliation Data lists John T. McAllister at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Inova Fair Oaks HospitalFairfax, VA · Acute Care Hospital · CCN 490101
- Virginia Hospital CenterArlington, VA · Acute Care Hospital · CCN 490050
Practice locations
Addresses where John T. McAllister is enrolled with Medicare (CMS data updated 2026-10-02).
- 3975 Fair Ridge Dr, Suite S100Fairfax, VA 22033 (703) 620‑2701
- 6565 Arlington Blvd, Suite 250Falls Church, VA 22042 (703) 534‑3900
- 8644 Sudley Rd, Suite 201Manassas, VA 20110 (703) 369‑8525
Group practices
Medicare enrollment lists John T. McAllister as a member of this group (CMS data updated 2026-10-02).
- Northern Virginia Ophthalmology Assoc PC19 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Fairfax
Clinicians with the same Medicare primary specialty in Fairfax, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wisconsin College Of Physicians And Surgeons |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548575921 |
| 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