Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Marilyn Hood Dayhuff, LCPC

Professional Counselor in Bozeman, MT · enumerated 2007.

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

National Provider Identifier

1821145087

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Registry record

Entity type Individual (Type 1)

Name Ms. Marilyn Hood Dayhuff

Credential LCPC

Sex Female

Practice address Bozeman, MT, 59715

Phone (406) 587-7515

Enumeration date Jan 3, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 394 (MT) Primary

Other identifiers

Identifier	Type	State	Issuer
250410	Medicaid	MT	-
74423	Other	MT	BCBS PROVIDER #
394	Other	MT	LCPC LICENSE #

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

Where does Marilyn Hood Dayhuff practice?

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

What is the NPI number for Marilyn Hood Dayhuff?

The National Provider Identifier (NPI) for Marilyn Hood Dayhuff is 1821145087, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Peggy Barta Clinical Social Worker · Bozeman, MT NPI 1073677290 Anne Owen Marriage & Family Therapist · Bozeman, MT NPI 1164614640

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.