Quick answers
- Where does William C. Kapfer see patients?
- Medicare's clinician data lists 5 practice locations, including Aldie, VA, Arlington, VA and Falls Church, VA. Call before your visit to confirm the address.
- What is William C. Kapfer's specialty?
- Medicare lists Mental Health Counselor as the primary specialty.
- Does William C. Kapfer accept Medicare assignment?
- Yes. Medicare's clinician data says William C. Kapfer 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 William C. Kapfer offer telehealth?
- Medicare's clinician data says William C. Kapfer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William C. Kapfer?
- (571) 248-7493, as listed in official Medicare / NPI Registry data.
- What is William C. Kapfer's NPI number?
- 1003529983. 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 William C. Kapfer is enrolled with Medicare (CMS data updated 2026-10-02).
- 24560 Southpoint Dr, Suite 260Aldie, VA 20105 (571) 248‑7493
- 2501 N Glebe Rd, Suite 303Arlington, VA 22207 (703) 841‑1290
- 2960 Sleepy Hollow RdFalls Church, VA 22044 (703) 536‑2000
- 6076 Franconia Rd, Suite DAlexandria, VA 22310 (703) 828‑9054
- 6400 Arlington Blvd, Suite 1000Falls Church, VA 22042 (703) 462‑8238
Group practices
Medicare enrollment lists William C. Kapfer as a member of these groups (CMS data updated 2026-10-02).
- Thrive Counseling LLC1,196 clinicians in the group
- Columbia Associates in Psychiatry PC149 clinicians in the group
Specialties
- Mental Health Counselorprimary
Other mental health counselors in Aldie
Clinicians with the same Medicare primary specialty in Aldie, VA — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1003529983 |
| 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