THOMAS J ATTAWAY MD
NPI 1922012442
Internal Medicine - Gastroenterology in Great Falls, MT
About Thomas J Attaway Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS J ATTAWAY MD (NPI 1922012442) is an individual gastroenterology provider in Great Falls, Montana, licensed in Montana (51839) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Benefis Hospitals Inc, and is a graduate of University Of Texas Medical Branch At Galveston (1986).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Thomas J Attaway Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Thomas Attaway reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Great Falls, MT 59405
- Reassigned Medicare billing, Montana enrollment
- 637 clinicians in this Medicare group
Adel, IA 50003
- Reassigned Medicare billing, Iowa enrollment
- 516 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Benefis Hospitals Inc
Acute Care Hospitals · Great Falls, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREAT FALLS, MT 59405
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 Thomas Attaway's NPI number?
The NPI number for Thomas Attaway is 1922012442. It was assigned to this individual provider in the NPPES registry on July 28, 2006. The provider is also known as Tommy Joe Attaway MD.
Where is Thomas Attaway located?
Thomas Attaway practices at 1401 25th St S, Great Falls, MT 59405. The listed phone number is (406) 455-5000.
What is Thomas Attaway's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Thomas Attaway enrolled in Medicare?
Yes. Thomas Attaway is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Thomas Attaway's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Attaway reassigns Medicare benefits to 2 organizations: Benefis Hospitals, Inc. (Great Falls, MT) and Mercy Clinics, Inc (Adel, IA). Each 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 Thomas Attaway's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Attaway accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Thomas Attaway 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.
Is Thomas Attaway affiliated with any hospitals?
According to CMS data, Thomas Attaway is affiliated with Benefis Hospitals Inc.
When was this NPI record last updated?
The NPPES record for Thomas Attaway was last updated on April 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Thomas J Attaway, MD · NPI 1922012442
Gastroenterology physician in Great Falls, Montana. Individual provider, active in the CMS NPPES registry since July 28, 2006.
## Identity
- **NPI:** 1922012442 (Entity type: Individual)
- **Enumerated:** July 28, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 51839 (Montana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1401 25TH ST S, Great Falls, MT 59405-5183
- **Phone:** (406) 455-5000 · **Fax:** (406) 731-8318
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Benefis Hospitals, Inc. (NPI 1881650737, Great Falls, MT); Mercy Clinics, Inc (NPI 1831410661, Adel, IA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 1986
## Record status
- **NPPES last updated:** April 5, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1922012442) · Data from the CMS NPPES public registry.