Quick answers
- Where does David Clark Jr. see patients?
- Medicare's clinician data lists 4 practice locations, including Manassas, VA, Vienna, VA and Ashburn, VA. Call before your visit to confirm the address.
- What is David Clark Jr.'s specialty?
- Medicare lists Family Practice as the primary specialty.
- Does David Clark Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says David Clark Jr. 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 David Clark Jr.?
- (571) 569-3526, as listed in official Medicare / NPI Registry data.
- What is David Clark Jr.'s NPI number?
- 1154385086. 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 David Clark Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 11670 Sudley Manor DrManassas, VA 20109 (571) 569‑3526
- 180 Maple Ave WVienna, VA 22180 (703) 938‑5300
- 20070 Ashbrook Commons Plz, Unit 104Ashburn, VA 20147 (571) 479‑3116
- 7500 Greenway Ctr Dr, Suite 620Greenbelt, MD 20770 (227) 997‑3903
Group practices
Medicare enrollment lists David Clark Jr. as a member of these groups (CMS data updated 2026-10-02).
- Inova Ucc LLC155 clinicians in the group
- Doctors First, LLC59 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Manassas
Clinicians with the same Medicare primary specialty in Manassas, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Howard University College Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154385086 |
| 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