Dr Grzegorz Cieslewicz, MD - Medicare Critical Care (intensivists) in Anaconda, MT

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Dr Grzegorz Cieslewicz, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Anaconda, Montana. He graduated from medical school in 1988 and has 38 years of diverse experience with area of expertise as Critical Care (intensivists). He is a member of the group practice Arizona Acute Medical Services 1 Pc, Intensivists Of Arizona, Llc, Arizona Pulmonary Specialists Ltd and his current practice location is 401 W Pennsylvania Ave, Anaconda, Montana. You can reach out to his office (for appointments etc.) via phone at (406) 563-8500.

Dr Grzegorz Cieslewicz is licensed to practice in Arizona (license number 32473) 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 1780634055.

Contact Information

Dr Grzegorz Cieslewicz, MD
401 W Pennsylvania Ave,
Anaconda, MT 59711-1999
(406) 563-8500
(406) 563-8694

Map and Direction




Physician's Profile

Full NameDr Grzegorz Cieslewicz
GenderMale
SpecialityCritical Care (intensivists)
Experience38 Years
Location401 W Pennsylvania Ave, Anaconda, 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:
  • Dr Grzegorz Cieslewicz graduated from medical school in 1988
  NPI Data:
  • NPI Number: 1780634055
  • Provider Enumeration Date: 05/10/2006
  • Last Update Date: 07/29/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 5597736165
  • Enrollment ID: I20040805000717

Medical Identifiers

Medical identifiers for Dr Grzegorz Cieslewicz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780634055NPI-NPPES
867955MedicaidAZ
1780634055OtherMTNPI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine 32473 (Arizona)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 32473 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Arrowhead HospitalGlendale, AZHospital
St. Joseph's Hospital And Medical CenterPhoenix, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Arizona Acute Medical Services 1 Pc620411397042
Intensivists Of Arizona, Llc68002188432
Arizona Pulmonary Specialists Ltd761886319244

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 Grzegorz Cieslewicz allows following entities to bill medicare on his behalf.
Entity NameArizona Pulmonary Specialists Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215986468
PECOS PAC ID: 7618863192
Enrollment ID: O20040223000693
Entity NameArizona Acute Medical Services 1 Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154860674
PECOS PAC ID: 6204113970
Enrollment ID: O20170505001284
Entity NameIntensivists Of Arizona, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326661851
PECOS PAC ID: 6800218843
Enrollment ID: O20200622001950

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 Grzegorz Cieslewicz 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 Grzegorz Cieslewicz, MD
401 W Pennsylvania Ave,
Anaconda, MT 59711-1999

Ph: (406) 563-8500		Dr Grzegorz Cieslewicz, MD
401 W Pennsylvania Ave,
Anaconda, MT 59711-1999

Ph: (406) 563-8500

Reviews and Comments


Internal Medicine Doctors in Anaconda, MT

William J. Cobell, MD
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 305 W Pennsylvania Ave, Anaconda, MT 59711
Phone: 406-563-8571    Fax: 406-563-4930
Elizabeth Schiedermayer, MD
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 1102 E Commercial Ave, Anaconda, MT 59711
Phone: 406-563-8689    
Nathan Cook, M.D.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 401 W Pennsylvania Ave, Anaconda, MT 59711
Phone: 406-563-8500    Fax: 406-563-8565
Emily Grace Owen, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1102 E Commercial Ave, Anaconda, MT 59711
Phone: 406-583-8689    
Dr. Steven Richard Ecklund, M.D.
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 305 W Pennsylvania Ave, Anaconda, MT 59711
Phone: 406-563-8686    Fax: 406-563-8691
Dr. William M Reiter, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 606 E Park Ave, Anaconda, MT 59711
Phone: 406-563-7962    Fax: 406-563-7180

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.