DR. MARY BETHANY MCMASTER M.D.
NPI 1356704498
Emergency Medicine in Bozeman, MT
About Dr. Mary Bethany Mcmaster M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY BETHANY MCMASTER M.D. (NPI 1356704498) is an individual emergency medicine provider in Bozeman, Montana, licensed in Montana (MED-PHYS-LIC-73042) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mary Bethany Mcmaster M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
8Medicare enrollment records show Mary Bethany Mcmaster reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bozeman, MT 59715
- Reassigned Medicare billing, Montana enrollment
- 402 clinicians in this Medicare group
Bozeman, MT 59718
- Reassigned Medicare billing, Montana enrollment
- Medicare enrollment name: Billings Clinic
- 1,264 clinicians in this Medicare group
Big Sky, MT 59716
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1740659952 (Montana)
- 49 clinicians in this Medicare group
Boulder, MT 59632
- Reassigned Medicare billing, Montana enrollment
- 278 clinicians in this Medicare group
Red Lodge, MT 59068
- Reassigned Medicare billing, Montana enrollment
- 85 clinicians in this Medicare group
Lewistown, MT 59457
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1770696601 (Montana)
- 83 clinicians in this Medicare group
Tohatchi, NM 87325
- Reassigned Medicare billing, Texas enrollment
- 618 clinicians in this Medicare group
Albuquerque, NM 87106
- Reassigned Medicare billing, New Mexico enrollment
- 2,105 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59715 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.
BOZEMAN, MT 59715
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 Bethany Mcmaster's NPI number?
The NPI number for Mary Bethany Mcmaster is 1356704498. It was assigned to this individual provider in the NPPES registry on April 4, 2016.
Where is Mary Bethany Mcmaster located?
Mary Bethany Mcmaster practices at 915 Highland Blvd, Bozeman, MT 59715. The listed phone number is (406) 414-5000.
What is Mary Bethany Mcmaster's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mary Bethany Mcmaster enrolled in Medicare?
Yes. Mary Bethany Mcmaster is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mary Bethany Mcmaster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Bethany Mcmaster reassigns Medicare benefits to 8 organizations: Bozeman Health Deaconess Hospital (Bozeman, MT), Billings Cinic (Bozeman, MT), Bozeman Health Big Sky Medical Center, LLC (Big Sky, MT), Scl Health Medical Group-Butte LLC (Boulder, MT), Memorial Hospital Association (Red Lodge, MT) and 3 more organizations, listed in the Medicare section above. 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 Mary Bethany Mcmaster's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Bethany Mcmaster accept?
Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Mary Bethany Mcmaster 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 Mary Bethany Mcmaster was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. Mary Bethany Mcmaster, M.D. · NPI 1356704498
Emergency Medicine physician in Bozeman, Montana. Individual provider, active in the CMS NPPES registry since April 4, 2016.
## Identity
- **NPI:** 1356704498 (Entity type: Individual)
- **Enumerated:** April 4, 2016
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MED-PHYS-LIC-73042 (Montana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 915 HIGHLAND BLVD, Bozeman, MT 59715-6902
- **Phone:** (406) 414-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Bozeman Health Deaconess Hospital (NPI 1437529112, Bozeman, MT); Billings Cinic (NPI 1215660840, Bozeman, MT); Bozeman Health Big Sky Medical Center, LLC (NPI 1588141048, Big Sky, MT); Scl Health Medical Group-Butte LLC (NPI 1861031122, Boulder, MT); Memorial Hospital Association (NPI 1184785099, Red Lodge, MT); and 3 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 9, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1356704498) · Data from the CMS NPPES public registry.