GRETTA KATHRYN ANDERSON
NPI 1356238687
Counselor - Mental Health in Billings, MT

Q: What is Gretta Anderson's NPI number?

The NPI number for Gretta Anderson is 1356238687. It was assigned to this individual provider in the NPPES registry on June 19, 2025.

Q: What is Gretta Anderson's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Gretta Anderson was last updated on June 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 19, 2025

1250 15TH ST W, BILLINGS, MT 59102(406) 461-1711 Get Directions Write a Review

NPPES record last updated: June 19, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Gretta Kathryn Anderson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GRETTA KATHRYN ANDERSON (NPI 1356238687) is an individual mental health provider in Billings, Montana and active in the NPI registry since June 2025.

NPPES Registry Identity

NPI1356238687

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameGRETTA KATHRYN ANDERSON

Location Address1250 15TH ST WBillings, MT 59102-4155

Mailing Address40 Jefferson StBillings, MT 59101-5231 · (406) 461-1711

Phone(406) 461-1711

Sole ProprietorNo

Enumeration DateJune 19, 2025

NPPES CertifiedJune 19, 2025

✔ NPI 1356238687 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

1250 15TH ST W, Billings, MT 59102

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Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RHONDA HEDDEN

Counselor (Mental Health)

1250 15TH ST W
BILLINGS, MT 59102

Yellowstone County (406) 656-8772

JADIE SCHATZ

Counselor (Mental Health)

1250 15TH ST W
BILLINGS, MT 59102

Yellowstone County (406) 247-4966

PAULA J WALLACE MSW,LAC

Counselor (Addiction (Substance Use Disorder))

1250 15TH ST W, SUITE 201
BILLINGS, MT 59102

Yellowstone County (406) 256-1434

MR. GORDON STEVEN WALLACE L.C.P.C. / L.A.C.

Counselor (Addiction (Substance Use Disorder))

1250 15TH ST W
BILLINGS, MT 59102

Yellowstone County (406) 256-1434

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gretta Anderson's NPI number?

The NPI number for Gretta Anderson is 1356238687. It was assigned to this individual provider in the NPPES registry on June 19, 2025.

Where is Gretta Anderson located?

Gretta Anderson practices at 1250 15th St W, Billings, MT 59102. The listed phone number is (406) 461-1711.

What is Gretta Anderson's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Gretta Anderson was last updated on June 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.