Dr Mary Bethany Mcmaster, MD - Medicare Emergency Medicine in Billings, MT

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Dr Mary Bethany Mcmaster, MD is a medicare enrolled "Emergency Medicine" physician in Billings, Montana. She went to University Of Washington School Of Medicine and graduated in 2016 and has 8 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Bozeman Health Deaconess Hospital, University Of New Mexico Medical Group and her current practice location is 801 N 29th St, Billings, Montana. You can reach out to her office (for appointments etc.) via phone at (406) 247-6920.

Dr Mary Bethany Mcmaster is licensed to practice in New Mexico (license number 390200000) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1356704498.

Contact Information

Dr Mary Bethany Mcmaster, MD
801 N 29th St,
Billings, MT 59101
(406) 247-6920
Not Available

Map and Direction




Physician's Profile

Full NameDr Mary Bethany Mcmaster
GenderFemale
SpecialityEmergency Medicine
Experience8 Years
Location801 N 29th St, Billings, Montana
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Mary Bethany Mcmaster attended and graduated from University Of Washington School Of Medicine in 2016
  NPI Data:
  • NPI Number: 1356704498
  • Provider Enumeration Date: 04/04/2016
  • Last Update Date: 07/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2466745690
  • Enrollment ID: I20190712002162

Medical Identifiers

Medical identifiers for Dr Mary Bethany Mcmaster such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1356704498NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine MD2018-0895 (New Mexico)Secondary
207P00000XEmergency Medicine 390200000 (New Mexico)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of New Mexico HospitalAlbuquerque, NMHospital
Unm Sandoval Regional Medical CenterRio rancho, NMHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Bozeman Health Deaconess Hospital4688984164233
University Of New Mexico Medical Group49817952671002

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Mary Bethany Mcmaster allows following entities to bill medicare on her behalf.
Entity NameMemorial Hospital Association
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184785099
PECOS PAC ID: 1951375849
Enrollment ID: O20040825001090
Entity NameMemorial Hospital Association
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1336119338
PECOS PAC ID: 1951375849
Enrollment ID: O20061104000636
Entity NameBillings Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326104845
PECOS PAC ID: 6002993516
Enrollment ID: O20080430000212
Entity NameBozeman Health Big Sky Medical Center Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740659952
PECOS PAC ID: 7315256872
Enrollment ID: O20151023000110
Entity NameBozeman Health Deaconess Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619347390
PECOS PAC ID: 4688984164
Enrollment ID: O20151112002559

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Mary Bethany Mcmaster is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Mary Bethany Mcmaster, MD
Po Box 35100,
Billings, MT 59107-5100

Ph: (406) 247-6920		Dr Mary Bethany Mcmaster, MD
801 N 29th St,
Billings, MT 59101

Ph: (406) 247-6920

Reviews and Comments


Emergency Medicine Doctors in Billings, MT

Dr. Mark David Schaefer, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1233 N 30th St, Billings, MT 59101
Phone: 406-237-4116    
Richard Lammers, DO
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1233 N 30th St, Billings, MT 59101
Phone: 406-237-4116    Fax: 406-237-4125
Deniz Tek, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1233 N 30th St, Billings, MT 59101
Phone: 406-237-4116    Fax: 406-237-4125
Jedediah Owen Walker, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2800 10th Ave N, Billings, MT 59101
Phone: 406-238-2500    
James Evan Buchan, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1233 N 30th St, Billings, MT 59101
Phone: 406-237-4116    Fax: 406-237-4125
Samuel Leon Paczkowski, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1233 N 30th St, Billings, MT 59101
Phone: 406-237-4116    Fax: 406-237-4125
Douglas Parker, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1233 N 30th St, Billings, MT 59101
Phone: 406-237-4116    Fax: 406-237-4125

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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