Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gretchen G Basen, PA-C

Physician Assistant in Twin Falls, ID · enumerated 2007.

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

National Provider Identifier

1861549396

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Registry record

Entity type Individual (Type 1)

Name Gretchen G Basen

Credential PA-C

Sex Female

Practice address 775 Pole Line Rd W, Suite 115, Twin Falls, ID, 83301

Phone (208) 814-8150

Fax (208) 732-3112

Enumeration date Jan 5, 2007

Last updated in NPPES Apr 14, 2014

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License C0001509 (MD) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA-914 (ID) Primary

Other identifiers

Identifier	Type	State	Issuer
1861549396	Medicaid	ID	-

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 Gretchen Basen?

The National Provider Identifier (NPI) for Gretchen Basen is 1861549396, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gretchen Basen practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-14.