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MONTANA INTERVENTIONAL AND DIAGNOSTIC RADIOLOGY SPECIALISTS, PLLC
NPI 1356397343
Radiology - Diagnostic Radiology in Helena, MT

Active since May 25, 2006
25 MEDICAL PARK DR, HELENA, MT 59601(406) 449-3211(406) 442-4863 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2022, Sep 21, 2017, Aug 3, 2017 (3 updates tracked since 2017).

About Montana Interventional And Diagnostic Radiology Specialists, Pllc NPPES

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

MONTANA INTERVENTIONAL AND DIAGNOSTIC RADIOLOGY SPECIALISTS, PLLC (NPI 1356397343) is a healthcare organization registered as a diagnostic radiology in Helena, Montana and active in the NPI registry since May 2006. The organization lists Dennis Palmer, Owner, as its authorized official.

NPPES Registry Identity

NPI1356397343
Entity TypeOrganization
Primary Taxonomy2085R0202X
Legal Business NameMONTANA INTERVENTIONAL AND DIAGNOSTIC RADIOLOGY SPECIALISTS, PLLC
Location Address25 MEDICAL PARK DRHelena, MT 59601-4949
Mailing Address25 Medical Park DrHelena, MT 59601-4949 · (406) 449-3211 · Fax (406) 442-4863
Phone(406) 449-3211
Fax(406) 442-4863
Organization SubpartNo
Authorized OfficialDennis PalmerOwner · (406) 449-3211
Enumeration DateMay 25, 2006
Last NPPES UpdateJuly 21, 20223 updates tracked since enumeration
✔ NPI 1356397343 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedRadiology · Vascular & Interventional RadiologyTaxonomy 2085R0204X
25 MEDICAL PARK DR, Helena, MT 59601
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Mountain Health CO-OP.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Montana Interventional And Diagnostic Radiology Specialists, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Montana Interventional And Diagnostic Radiology Specialists, PLLC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Brandon Newgard, M.D.
Diagnostic Radiology
NPI 1346476181
2475 E BROADWAY ST
Helena, MT 59601
(406) 457-4180
✔ PECOS✔ Accepts Medicare0.2 mi
Hassan Massouh, M.D.
Diagnostic Radiology
NPI 1083723969
11995 SINGLETREE LN STE 500
Eden Prairie, MN 55344
(952) 595-1301
✔ PECOS✔ Accepts Medicare904 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Montana Interventional And Diagnostic Radiology Specialists, PLLC's NPI number?

The NPI number for Montana Interventional And Diagnostic Radiology Specialists, PLLC is 1356397343. It was assigned to this organization in the NPPES registry on May 25, 2006.

Where is Montana Interventional And Diagnostic Radiology Specialists, PLLC located?

Montana Interventional And Diagnostic Radiology Specialists, PLLC is located at 25 Medical Park Dr, Helena, MT 59601. The listed phone number is (406) 449-3211.

What is Montana Interventional And Diagnostic Radiology Specialists, PLLC's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Montana Interventional And Diagnostic Radiology Specialists, PLLC enrolled in Medicare?

Yes. Montana Interventional And Diagnostic Radiology Specialists, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Montana Interventional And Diagnostic Radiology Specialists, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Diagnostic Radiology, reassign their Medicare billing to Montana Interventional And Diagnostic Radiology Specialists, PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Montana Interventional And Diagnostic Radiology Specialists, PLLC accept?

Health plans from Mountain Health CO-OP list Montana Interventional And Diagnostic Radiology Specialists, PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Montana Interventional And Diagnostic Radiology Specialists, PLLC was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.