Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane Friedman Herseth, LPCMH

Counselor in Aberdeen, SD · enumerated 2006.

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

National Provider Identifier

1255414777

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Registry record

Entity type Individual (Type 1)

Name Diane Friedman Herseth

Credential LPCMH

Sex Female

Practice address 405 8th Ave Nw, Suite 333, Aberdeen, SD, 57401

Phone (605) 225-3622

Fax (605) 229-2719

Enumeration date Oct 21, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers · License LPCMH 2126 (SD) Primary

Other identifiers

Identifier	Type	State	Issuer
6576040	Medicaid	SD	-

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 Diane Herseth practice?

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

What is the NPI number for Diane Herseth?

The National Provider Identifier (NPI) for Diane Herseth is 1255414777, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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