Quick answers
- Which hospitals does Xavier D. Lennon work at?
- Medicare's official clinician data lists Xavier D. Lennon at 1 hospital: Suburban Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Xavier D. Lennon see patients?
- Medicare's clinician data lists 4 practice locations, including Falls Church, VA, Washington, DC and Bethesda, MD. Call before your visit to confirm the address.
- What is Xavier D. Lennon's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Xavier D. Lennon accept Medicare assignment?
- Yes. Medicare's clinician data says Xavier D. Lennon 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 Xavier D. Lennon?
- (202) 660-6500, as listed in official Medicare / NPI Registry data.
- What is Xavier D. Lennon's NPI number?
- 1699907758. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Xavier D. Lennon works
Medicare's Facility Affiliation Data lists Xavier D. Lennon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Suburban HospitalBethesda, MD · Acute Care Hospital · CCN 210022
Practice locations
Addresses where Xavier D. Lennon is enrolled with Medicare (CMS data updated 2026-10-02).
- 3300 Gallows RdFalls Church, VA 22042
- 5255 Loughboro Rd NWWashington, DC 20016 (202) 660‑6500
- 5255 Loughboro Rd NW, Johns Hopkins at Sibley Memorial HospitalWashington, DC 20016 (202) 660‑6125
- 8600 Old Georgetown RdBethesda, MD 20814 (301) 896‑3939
Group practices
Medicare enrollment lists Xavier D. Lennon as a member of these groups (CMS data updated 2026-10-02).
- Inova Health Care Services1,817 clinicians in the group
- Johns Hopkins University713 clinicians in the group
- Johns Hopkins University197 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Falls Church
Clinicians with the same Medicare primary specialty in Falls Church, VA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Medical school | Howard University College Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699907758 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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