John J Mazur, MD - Medicare Pulmonary Disease in Great Falls, MT

John J Mazur, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Great Falls, Montana. He went to University Of Michigan Medical School and graduated in 1986 and has 38 years of diverse experience with area of expertise as Pulmonary Disease. He is a member of the group practice Great Falls Clinic Llc and his current practice location is 1400 29th St S, Great Falls, Montana. You can reach out to his office (for appointments etc.) via phone at (406) 454-2171.

John J Mazur is licensed to practice in Montana (license number 12032) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1659364651.

Contact Information

John J Mazur, MD
1400 29th St S,
Great Falls, MT 59405-5353
(406) 454-2171
(406) 771-3021

Map and Direction




Physician's Profile

Full NameJohn J Mazur
GenderMale
SpecialityPulmonary Disease
Experience38 Years
Location1400 29th St S, Great Falls, Montana
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John J Mazur attended and graduated from University Of Michigan Medical School in 1986
  NPI Data:
  • NPI Number: 1659364651
  • Provider Enumeration Date: 08/24/2005
  • Last Update Date: 08/10/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 2668458373
  • Enrollment ID: I20090917000037

Medical Identifiers

Medical identifiers for John J Mazur such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1659364651NPI-NPPES
1659364651MedicaidMT

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease 12032 (Montana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Great Falls Clinic HospitalGreat falls, MTHospital
Benefis Hospitals IncGreat falls, MTHospital
St Peters HospitalHelena, MTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Great Falls Clinic Llc832594449960

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. John J Mazur allows following entities to bill medicare on his behalf.
Entity NameGreat Falls Clinic Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801897780
PECOS PAC ID: 8325944499
Enrollment ID: O20031209001107
Entity NameBenefis Hospitals Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780968974
PECOS PAC ID: 1153235296
Enrollment ID: O20100629000044

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. John J Mazur 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
John J Mazur, MD
1400 29th St S,
Great Falls, MT 59405-5353

Ph: (406) 454-2171
John J Mazur, MD
1400 29th St S,
Great Falls, MT 59405-5353

Ph: (406) 454-2171

Reviews and Comments


Internal Medicine Doctors in Great Falls, MT

Edmund J Brennan, MD
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 1101 26th St S, Great Falls, MT 59405
Phone: 406-731-8888    
David E Anderson, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1917 4th St S, Great Falls, MT 59405
Phone: 406-453-7570    Fax: 406-771-3021
Sheela Yadav Ahmed, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1401 25th St S, Great Falls, MT 59405
Phone: 406-731-8888    Fax: 406-731-8318
Dr. Anne Christine Zender-princeton, D.O.
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 1401 25th St S, Great Falls, MT 59405
Phone: 406-731-8888    Fax: 406-731-8318
Steven P Akre, MD
Pulmonary Disease
Medicare: Not Enrolled in Medicare
Practice Location: 1400 29th St S, Great Falls, MT 59405
Phone: 406-454-2171    Fax: 406-771-3021
Mr. Donald Hall Berdeaux, MD
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 1117 29th St S, Great Falls, MT 59405
Phone: 406-731-8200    Fax: 406-731-8178
Paul Fredrick Schmook, RPSGT
Pulmonary Disease
Medicare: Not Enrolled in Medicare
Practice Location: 1917 4th St S, Great Falls, MT 59405
Phone: 406-453-7570    

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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.

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