Quick answers
- Where does John Carmack see patients?
- Medicare's clinician data lists 2 practice locations, including Woodbridge, VA and Burke, VA. Call before your visit to confirm the address.
- What is John Carmack's specialty?
- Medicare lists Emergency Medicine as the primary specialty, and also Family Practice.
- Does John Carmack accept Medicare assignment?
- Yes. Medicare's clinician data says John Carmack 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 Carmack?
- (571) 300-8000, as listed in official Medicare / NPI Registry data.
- What is John Carmack's NPI number?
- 1023034972. 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 John Carmack is enrolled with Medicare (CMS data updated 2026-10-02).
- 14087 Richmond Hwy, Suite 101Woodbridge, VA 22191 (571) 300‑8000
- 9276 Old Keene Mill RdBurke, VA 22015 (571) 516‑3116
Group practices
Medicare enrollment lists John Carmack as a member of this group (CMS data updated 2026-10-02).
- American Greatest Care LLC15 clinicians in the group
Specialties
- Emergency Medicineprimary
- Family Practicealso
Other emergency medicine doctors in Woodbridge
Clinicians with the same Medicare primary specialty in Woodbridge, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023034972 |
| 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