Quick answers
- Where does Christopher K. Chhoun see patients?
- Medicare's clinician data lists 1 practice location in Fairfax, VA. Call before your visit to confirm the address.
- What is Christopher K. Chhoun's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Christopher K. Chhoun accept Medicare assignment?
- Yes. Medicare's clinician data says Christopher K. Chhoun 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 Christopher K. Chhoun?
- (703) 716-8700, as listed in official Medicare / NPI Registry data.
- What is Christopher K. Chhoun's NPI number?
- 1689235921. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Christopher K. Chhoun is enrolled with Medicare (CMS data updated 2026-10-02).
- 3700 Joseph Siewick Dr, Suite 308Fairfax, VA 22033 (703) 716‑8700
Group practices
Medicare enrollment lists Christopher K. Chhoun as a member of this group (CMS data updated 2026-10-02).
- Gastroenterology Associates of Northern Virginia, LLC100 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Fairfax
Clinicians with the same Medicare primary specialty in Fairfax, VA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Edward Via Col Of Osteo Medicine-Carolinas Campus |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689235921 |
| 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
- 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