Quick answers
- Which hospitals does Rex B. Ruiz work at?
- Medicare's official clinician data lists Rex B. Ruiz at 2 hospitals: Inova Fair Oaks Hospital and UVA Health Prince William Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Rex B. Ruiz see patients?
- Medicare's clinician data lists 1 practice location in Centreville, VA. Call before your visit to confirm the address.
- What is Rex B. Ruiz's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Rex B. Ruiz accept Medicare assignment?
- Yes. Medicare's clinician data says Rex B. Ruiz 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 Rex B. Ruiz offer telehealth?
- Medicare's clinician data says Rex B. Ruiz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Rex B. Ruiz?
- (703) 263-9600, as listed in official Medicare / NPI Registry data.
- What is Rex B. Ruiz's NPI number?
- 1063418762. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Rex B. Ruiz works
Medicare's Facility Affiliation Data lists Rex B. Ruiz 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
- UVA Health Prince William Medical CenterManassas, VA · Acute Care Hospital · CCN 490045
Practice locations
Addresses where Rex B. Ruiz is enrolled with Medicare (CMS data updated 2026-10-02).
- 6201 Centreville Rd, Suite 100Centreville, VA 20121 (703) 263‑9600
Group practices
Medicare enrollment lists Rex B. Ruiz as a member of this group (CMS data updated 2026-10-02).
- Fairfax Family Practice Centers PC106 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Centreville
Clinicians with the same Medicare primary specialty in Centreville, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Warren Alpert Medical School Of Brown University |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1063418762 |
| 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