Quick answers
- Which hospitals does Lennis B. Klenk work at?
- Medicare's official clinician data lists Lennis B. Klenk at 2 hospitals: Inova Loudoun Hospital and Inova Mount Vernon Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lennis B. Klenk see patients?
- Medicare's clinician data lists 3 practice locations, including Alexandria, VA, Leesburg, VA and Springfield, VA. Call before your visit to confirm the address.
- What is Lennis B. Klenk's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Lennis B. Klenk accept Medicare assignment?
- Yes. Medicare's clinician data says Lennis B. Klenk 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 Lennis B. Klenk?
- (703) 664-7000, as listed in official Medicare / NPI Registry data.
- What is Lennis B. Klenk's NPI number?
- 1407169352. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lennis B. Klenk works
Medicare's Facility Affiliation Data lists Lennis B. Klenk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Inova Loudoun HospitalLeesburg, VA · Acute Care Hospital · CCN 490043
- Inova Mount Vernon HospitalAlexandria, VA · Acute Care Hospital · CCN 490122
Practice locations
Addresses where Lennis B. Klenk is enrolled with Medicare (CMS data updated 2026-10-02).
- 2501 Parkers LnAlexandria, VA 22306 (703) 664‑7000
- 44045 Rivderside PkwyLeesburg, VA 20176 (703) 858‑6040
- 6230 Rolling Rd, Suite IjSpringfield, VA 22152 (571) 565‑6460
Group practices
Medicare enrollment lists Lennis B. Klenk as a member of these groups (CMS data updated 2026-10-02).
- Inova Health Care Services1,817 clinicians in the group
- Commonwealth Emergency Physicians PC45 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Alexandria
Clinicians with the same Medicare primary specialty in Alexandria, VA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407169352 |
| 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