NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

3d Mammography of Southwest Montana, Inc.

Mammography Clinic/Center in Butte, MT · enumerated 2014 · authorized official Mark Rule, President.

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

National Provider Identifier

1861800286

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name 3d Mammography of Southwest Montana, Inc.
Practice address 800 W Platinum St, Unit D, Butte, MT, 59701
Phone (406) 299-3302
Fax (406) 299-3304
Enumeration date Jul 29, 2014
Last updated in NPPES Jun 13, 2023

Taxonomy & classification

261QR0206X Mammography Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Mark Rule
Title President
Phone (406) 560-3266

Other identifiers

Identifier Type State Issuer
2085RP2020X Medicaid MT -

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is 3d Mammography of Southwest Montana, Inc.?
3d Mammography of Southwest Montana, Inc. is registered in NPPES as a Mammography Clinic/Center (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-13.