Quick answers
- Which hospitals does Lena J. Acker work at?
- Medicare's official clinician data lists Lena J. Acker at 1 hospital: Sierra Nevada Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lena J. Acker see patients?
- Medicare's clinician data lists 1 practice location in Elk Grove, CA. Call before your visit to confirm the address.
- What is Lena J. Acker's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Lena J. Acker accept Medicare assignment?
- Yes. Medicare's clinician data says Lena J. Acker 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 Lena J. Acker?
- (888) 408-7008, as listed in official Medicare / NPI Registry data.
- What is Lena J. Acker's NPI number?
- 1366395220. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lena J. Acker works
Medicare's Facility Affiliation Data lists Lena J. Acker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sierra Nevada Memorial HospitalGrass Valley, CA · Acute Care Hospital · CCN 050150
Practice locations
Addresses where Lena J. Acker is enrolled with Medicare (CMS data updated 2026-10-02).
- 9461 Batey AveElk Grove, CA 95624 (888) 408‑7008
Group practices
Medicare enrollment lists Lena J. Acker as a member of this group (CMS data updated 2026-10-02).
- Altea Medical California PC85 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Elk Grove
Clinicians with the same Medicare primary specialty in Elk Grove, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366395220 |
| 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