Dr Michael W Brennan, MD - Medicare Interventional Cardiology in Sheridan, WY

Dr Michael W Brennan, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Sheridan, Wyoming. He went to University Of Oklahoma College Of Medicine and graduated in 1984 and has 40 years of diverse experience with area of expertise as Interventional Cardiology. He is a member of the group practice Big Horn Health Network and his current practice location is 1333 West 5th St, Ste 103, Sheridan, Wyoming. You can reach out to his office (for appointments etc.) via phone at (307) 675-4610.

Dr Michael W Brennan is licensed to practice in Wyoming (license number 4505A) 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 1619903705.

Contact Information

Dr Michael W Brennan, MD
1333 West 5th St, Ste 103,
Sheridan, WY 82801-2752
(307) 675-4610
(307) 675-4615

Map and Direction




Physician's Profile

Full NameDr Michael W Brennan
GenderMale
SpecialityInterventional Cardiology
Experience40 Years
Location1333 West 5th St, Ste 103, Sheridan, Wyoming
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 Michael W Brennan attended and graduated from University Of Oklahoma College Of Medicine in 1984
  NPI Data:
  • NPI Number: 1619903705
  • Provider Enumeration Date: 06/23/2006
  • Last Update Date: 04/08/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3971405929
  • Enrollment ID: I20040413000636

Medical Identifiers

Medical identifiers for Dr Michael W Brennan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619903705NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 6651 (Montana)Secondary
207RC0000XInternal Medicine - Cardiovascular Disease 4505A (Wyoming)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sheridan Memorial HospitalSheridan, WYHospital
Johnson County Healthcare CenterBuffalo, WYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Big Horn Health Network125447648448

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 Michael W Brennan allows following entities to bill medicare on his behalf.
Entity NameMemorial Hospital Of Sheridan County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487707188
PECOS PAC ID: 2163405440
Enrollment ID: O20040608001286
Entity NameBig Horn Health Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861722688
PECOS PAC ID: 1254476484
Enrollment ID: O20100226000582

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 Michael W Brennan 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 Michael W Brennan, MD
1333 W 5th St Ste 110,
Sheridan, WY 82801-2752

Ph: (307) 675-4610
Dr Michael W Brennan, MD
1333 West 5th St, Ste 103,
Sheridan, WY 82801-2752

Ph: (307) 675-4610

Reviews and Comments


Internal Medicine Doctors in Sheridan, WY

Gregory Gerritt Marino, DO
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 1401 W 5th St, Sheridan, WY 82801
Phone: 307-674-6022    Fax: 307-674-5405
Erin Marie Henderson, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 61 S Gould St, Sheridan, WY 82801
Phone: 307-675-2690    Fax: 307-675-2691
Dr. Sundeep K Ram, DO
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1401 West 5th St., Sheridan, WY 82801
Phone: 307-672-1000    
Dr. Allison Dawson, MD
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 1333 W 5th St Ste 112, Sheridan, WY 82801
Phone: 307-675-2650    Fax: 307-675-2651
Dr. Hannah Marie Hall, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1333 W 5th St, Ste 112, Sheridan, WY 82801
Phone: 307-675-2650    Fax: 307-675-2651
Dr. Stephen Scott Tenney, MD
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 1898 Fort Rd, Sheridan, WY 82801
Phone: 307-672-3473    Fax: 307-672-1900
Dr. Bill M Williams, M.D.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 1456 W 5th St, Sheridan, WY 82801
Phone: 307-672-5881    Fax: 307-672-1766

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.