Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sherwin S. Foster, M.D.

Nephrology Physician in Hayden, ID · enumerated 2005 · practices at Ethos Progressive Care.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1720074990

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Registry record

Entity type Individual (Type 1)

Name Sherwin S. Foster

Credential M.D.

Sex Male

Practice address 1986 W Hayden Ave, Hayden, ID, 83835

Phone (208) 762-7760

Fax (208) 762-7740

Enumeration date Sep 23, 2005

Last updated in NPPES Jun 16, 2021

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License M-10094 (ID) Primary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License MD00049028 (WA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
11003341	Other	-	MEDICARE PTAN
8078889	Medicaid	ID	-
8080036	Medicaid	ID	-
8497588	Medicaid	WA	-
7144785	Medicaid	WA	-
1370136	Other	-	MEDICARE GROUP PTAN

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Sherwin Foster?

The National Provider Identifier (NPI) for Sherwin Foster is 1720074990, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sherwin Foster practice?

The practice location on file with NPPES is in Hayden, ID. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Laura Burgeson Physician Assistant · Hayden, ID NPI 1962467977 Ethos Progressive Care Family Medicine Physician · Hayden, ID NPI 1932122827 Shaun Joshi Nephrology Physician · Hayden, ID NPI 1073629150 Jacob Reedy Family Nurse Practitioner · Hayden, ID NPI 1114530565

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-16.