Quick answers
- Where does Derek K. Johnson see patients?
- Medicare's clinician data lists 7 practice locations, including Woodbridge, VA, Fairfax, VA and Manassas, VA. Call before your visit to confirm the address.
- What is Derek K. Johnson's specialty?
- Medicare lists Allergy/Immunology as the primary specialty, and also Pediatric Medicine.
- Does Derek K. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Derek K. Johnson 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 Derek K. Johnson offer telehealth?
- Medicare's clinician data says Derek K. Johnson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Derek K. Johnson?
- (703) 214-9773, as listed in official Medicare / NPI Registry data.
- What is Derek K. Johnson's NPI number?
- 1285622183. 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 Derek K. Johnson is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1916 Opitz BlvdWoodbridge, VA 22191 (703) 214‑9773
- 1952 Opitz BlvdWoodbridge, VA 22191 (703) 494‑7849
- 1958 Opitz BlvdWoodbridge, VA 22191 (703) 494‑1147
- 3903 A Fair Ridge DrFairfax, VA 22033 (703) 648‑0030
- 8644 Sudley Rd, Suite 220Manassas, VA 20110 (571) 366‑8845
Group practices
Medicare enrollment lists Derek K. Johnson as a member of this group (CMS data updated 2026-10-02).
- Privia Medical Group, LLC1,533 clinicians in the group
Specialties
- Allergy/Immunologyprimary
- Pediatric Medicinealso
Other allergist and immunologists in Woodbridge
Clinicians with the same Medicare primary specialty in Woodbridge, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1285622183 |
| 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