WILLIAM LEROY FOSTER JR.
NPI 1356765747
Counselor - Addiction (Substance Use Disorder) in Butte, MT

Q: What is William Foster's NPI number?

The NPI number for William Foster is 1356765747. It was assigned to this individual provider in the NPPES registry on February 6, 2014.

Q: What is William Foster's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for William Foster was last updated on February 6, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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 February 06, 2014

1250 HARRISON AVE, BUTTE, MT 59711(406) 565-8301 Get Directions Write a Review

NPPES record last updated: February 6, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About William Leroy Foster Jr. NPPES

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

WILLIAM LEROY FOSTER JR. (NPI 1356765747) is an individual addiction (substance use disorder) provider in Butte, Montana, licensed in Montana (1176) and active in the NPI registry since February 2014.

NPPES Registry Identity

NPI1356765747

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameWILLIAM LEROY FOSTER JR.

Location Address1250 HARRISON AVEButte, MT 59711

Mailing Address1225 Harrison AveButte, MT 59711 · (406) 565-8301

Phone(406) 565-8301

Sole ProprietorYes

Enumeration DateFebruary 6, 2014

✔ NPI 1356765747 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

License✔ Licensed in MT · 1176

1250 HARRISON AVE, Butte, MT 59711

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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 William Foster's NPI number?

The NPI number for William Foster is 1356765747. It was assigned to this individual provider in the NPPES registry on February 6, 2014.

Where is William Foster located?

William Foster practices at 1250 Harrison Ave, Butte, MT 59711. The listed phone number is (406) 565-8301.

What is William Foster's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for William Foster was last updated on February 6, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.