Quick answers
- Which hospitals does Ako M. Walther work at?
- Medicare's official clinician data lists Ako M. Walther at 2 hospitals: Marinhealth Medical Center and Sonoma Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ako M. Walther see patients?
- Medicare's clinician data lists 3 practice locations, including Redding, CA, Greenbrae, CA and Sonoma, CA. Call before your visit to confirm the address.
- What is Ako M. Walther's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Ako M. Walther accept Medicare assignment?
- Yes. Medicare's clinician data says Ako M. Walther 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 Ako M. Walther?
- (530) 225-6000, as listed in official Medicare / NPI Registry data.
- What is Ako M. Walther's NPI number?
- 1588907836. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ako M. Walther works
Medicare's Facility Affiliation Data lists Ako M. Walther at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · CCN 050360
- Sonoma Valley HospitalSonoma, CA · Acute Care Hospital · CCN 050090
Practice locations
Addresses where Ako M. Walther is enrolled with Medicare (CMS data updated 2026-10-02).
- 2175 Rosaline AveRedding, CA 96001 (530) 225‑6000
- 250 Bon Air RdGreenbrae, CA 94904 (415) 925‑7000
- 347 Andrieux StSonoma, CA 95476 (707) 935‑5000
Group practices
Medicare enrollment lists Ako M. Walther as a member of these groups (CMS data updated 2026-10-02).
- Galen Inpatient Physicians PC1,077 clinicians in the group
- SV Hospitalist Medical Group Inc7 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Redding
Clinicians with the same Medicare primary specialty in Redding, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588907836 |
| 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