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MARY JOHANNA MAHONEY
NPI 1275497240
Counselor - Addiction (Substance Use Disorder) in Butte, MT

Active since December 12, 2025
630 W MERCURY ST, BUTTE, MT 59701(406) 496-1172(406) 782-6964 Get Directions Write a Review

NPPES record last updated: December 12, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mary Johanna Mahoney NPPES

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

MARY JOHANNA MAHONEY (NPI 1275497240) is an individual addiction (substance use disorder) provider in Butte, Montana, licensed in Montana (BBH-LAC-LIC-70233) and active in the NPI registry since December 2025.

NPPES Registry Identity

NPI1275497240
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameMARY JOHANNA MAHONEY
Location Address630 W MERCURY STButte, MT 59701-1510
Mailing Address630 W Mercury StButte, MT 59701-1510 · (406) 496-1172 · Fax (406) 782-6964
Phone(406) 496-1172
Fax(406) 782-6964
Sole ProprietorNo
Enumeration DateDecember 12, 2025
NPPES CertifiedDecember 12, 2025
✔ NPI 1275497240 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 · BBH-LAC-LIC-70233
630 W MERCURY ST, Butte, MT 59701
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Other Providers at the Same Location NPPES 10

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

CCCS SMART PROGRAM
Community/Behavioral Health
630 W MERCURY ST
BUTTE, MT 59701
Silver Bow County (406) 299-3448
MONTANA LITHOTRIPSY,LLC
Portable X-ray and/or Other Portable Diagnostic Imaging Supplier
630 W MERCURY ST
BUTTE, MT 59701
Silver Bow County (406) 723-7000
MARK L DENNEHY
Counselor (Addiction (Substance Use Disorder))
630 W MERCURY ST
BUTTE, MT 59701
Silver Bow County (406) 299-3448
DAVE BOYD LAC
Counselor (Addiction (Substance Use Disorder))
630 W MERCURY ST
BUTTE, MT 59701
Silver Bow County (406) 299-3448
DANIELLE MARIE GIACOMINO LAC
Counselor (Addiction (Substance Use Disorder))
630 W MERCURY ST
BUTTE, MT 59701
Silver Bow County (406) 299-3348
ROXANNA REYNOLDS LAC
Counselor (Addiction (Substance Use Disorder))
630 W MERCURY ST
BUTTE, MT 59701
Silver Bow County (406) 299-3448
AMY BIRKELO LAC
Counselor (Addiction (Substance Use Disorder))
630 W MERCURY ST
BUTTE, MT 59701
Silver Bow County (406) 299-3448
EASTERN PLAINS-CLINIC OF UROLOGY, LLC
Urology
630 W MERCURY ST
BUTTE, MT 59701
Silver Bow County (920) 623-9970

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 Mary Mahoney's NPI number?

The NPI number for Mary Mahoney is 1275497240. It was assigned to this individual provider in the NPPES registry on December 12, 2025.

Where is Mary Mahoney located?

Mary Mahoney practices at 630 W Mercury St, Butte, MT 59701. The listed phone number is (406) 496-1172.

What is Mary Mahoney'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 Mary Mahoney was last updated on December 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.