Quick answers
- Which hospitals does James T. Dingess work at?
- Medicare's official clinician data lists James T. Dingess at 4 hospitals: Inova Fair Oaks Hospital, Inova Fairfax Hospital, Inova Loudoun Hospital and UVA Health Haymarket Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James T. Dingess see patients?
- Medicare's clinician data lists 6 practice locations, including Ashburn, VA, Falls Church, VA and Fairfax, VA. Call before your visit to confirm the address.
- What is James T. Dingess's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does James T. Dingess accept Medicare assignment?
- Yes. Medicare's clinician data says James T. Dingess 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 James T. Dingess offer telehealth?
- Medicare's clinician data says James T. Dingess offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for James T. Dingess?
- (571) 465-2385, as listed in official Medicare / NPI Registry data.
- What is James T. Dingess's NPI number?
- 1396230793. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James T. Dingess works
Medicare's Facility Affiliation Data lists James T. Dingess 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
- Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · CCN 490063
- Inova Loudoun HospitalLeesburg, VA · Acute Care Hospital · CCN 490043
- UVA Health Haymarket Medical CenterHaymarket, VA · Acute Care Hospital · CCN 490144
Practice locations
Addresses where James T. Dingess is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 21785 Filigree Ct, Suite 201Ashburn, VA 20147 (571) 465‑2385
- 3300 Gallows RdFalls Church, VA 22042
- 3580 Joseph Siewick DrFairfax, VA 22033
- 3600 Joseph Siewick DrFairfax, VA 22033 (703) 391‑3600
- 8081 Innovation Park DrFairfax, VA 22031
Group practices
Medicare enrollment lists James T. Dingess as a member of this group (CMS data updated 2026-10-02).
- Inova Health Care Services1,817 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Ashburn
Clinicians with the same Medicare primary specialty in Ashburn, VA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1396230793 |
| 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