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

Mrs. Margaret Ruth Heriot, LMHC

Mental Health Counselor in Centralia, WA · enumerated 2007 · practices at Elaine Pichette Np & Associates Pllc.

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

National Provider Identifier

1629129150

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Registry record

Entity type Individual (Type 1)

Name Mrs. Margaret Ruth Heriot

Credential LMHC

Sex Female

Practice address Centralia, WA, 98531

Phone (360) 736-1808

Fax (360) 736-1460

Enumeration date Jan 12, 2007

Last updated in NPPES Jul 21, 2022

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License RC00048297 (WA) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LH 60040719 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
2010939	Medicaid	WA	-

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 Margaret Heriot?

The National Provider Identifier (NPI) for Margaret Heriot is 1629129150, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margaret Heriot practice?

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

Other providers at this practice address

Browse all →

Laila Thompson Mental Health Counselor · Centralia, WA NPI 1043367261 Linda Van Puymbrouck Massage Therapist · Centralia, WA NPI 1669722435 Elaine Pichette Np & Associates Pllc Mental Health Clinic/Center (Including Community Mental Health Center) · Centralia, WA NPI 1447651625

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.