Quick answers
- Which hospitals does Sherwin Foster work at?
- Medicare's official clinician data lists Sherwin Foster at 4 hospitals: Bonner General Hospital, Kootenai Health, Multicare Valley Hospital and Northwest Specialty Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sherwin Foster see patients?
- Medicare's clinician data lists 2 practice locations, including Hayden, ID. Call before your visit to confirm the address.
- What is Sherwin Foster's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Sherwin Foster accept Medicare assignment?
- Yes. Medicare's clinician data says Sherwin Foster 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 Sherwin Foster?
- (208) 762-7760, as listed in official Medicare / NPI Registry data.
- What is Sherwin Foster's NPI number?
- 1720074990. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sherwin Foster works
Medicare's Facility Affiliation Data lists Sherwin Foster at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bonner General HospitalSandpoint, ID · Critical Access Hospital · CCN 131328
- Kootenai HealthCoeur D'alene, ID · Acute Care Hospital · CCN 130049
- Multicare Valley HospitalSpokane Valley, WA · Acute Care Hospital · CCN 500119
- Northwest Specialty HospitalPost Falls, ID · Acute Care Hospital · CCN 130066
Practice locations
Addresses where Sherwin Foster is enrolled with Medicare (CMS data updated 2026-10-02).
- 8836 N Hess CHayden, ID 83835
- 8836 N Hess St, Suite CHayden, ID 83835 (208) 762‑7760
Group practices
Medicare enrollment lists Sherwin Foster as a member of this group (CMS data updated 2026-10-02).
- North Idaho Nephrology Associates Inc2 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Idaho
Clinicians with the same Medicare primary specialty in Idaho — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720074990 |
| 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