Quick answers
- Where does Brendan D. Griffis see patients?
- Medicare's clinician data lists 3 practice locations, including Leesburg, VA, Lansdowne, VA and Arlington, VA. Call before your visit to confirm the address.
- What is Brendan D. Griffis's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Brendan D. Griffis accept Medicare assignment?
- Yes. Medicare's clinician data says Brendan D. Griffis 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 Brendan D. Griffis?
- (703) 777-5111, as listed in official Medicare / NPI Registry data.
- What is Brendan D. Griffis's NPI number?
- 1003054016. 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 Brendan D. Griffis is enrolled with Medicare (CMS data updated 2026-10-02).
- 161 Fort Evans Rd NE, Suite 320Leesburg, VA 20176 (703) 777‑5111
- 19490 Sandridge Way, Suite 350Lansdowne, VA 20176 (703) 858‑5599
- 4040 Fairfax Dr, Suite 801Arlington, VA 22203 (571) 970‑6050
Group practices
Medicare enrollment lists Brendan D. Griffis as a member of this group (CMS data updated 2026-10-02).
- Anesthesia Connections-Virginia, LLC12 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Leesburg
Clinicians with the same Medicare primary specialty in Leesburg, VA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003054016 |
| 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