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Dr. Michael Brennan, MD
Cardiology* Age 67
Dr. Michael Brennan, MD
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Dr. Michael Brennan, MD is a Cardiologist in Sheridan, WY.
Dr. Michael Brennan, MD
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Dr. Michael Brennan, MD

Cardiology* Age 67
Sheridan, WY
Accepting new patients
42 years of experience
Dr. Michael Brennan, MD is a Cardiologist in Sheridan, WY.
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About

Dr. Brennan graduated from UNIVERSITY OF OKLAHOMA / HEALTH SCIENCES CENTER. Dr. Michael Brennan, MD is a Cardiologist in Sheridan, WY and has 42 years experience. Dr. Brennan has experience treating conditions like Cardiomegaly, Atherosclerosis of Aorta, Tricuspid Valve Disease, Mitral and Aortic Valve Disorder, Mitral Valve Disease, Cardiomyopathy, Hypertrophic, Pulmonary Hypertension, Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension), First Degree Heart Block, Heart Valve Disorders, Aortic Valve Disease, Aortic Ectasia and Sinus Bradycardia among other conditions at varying frequencies. Dr. Brennan's office accepts new patients. Dr. Brennan is board certified in Cardiovascular Disease and accepts multiple insurance plans.

Experience Check

Enter a condition or procedure
Cardiomegaly
Atherosclerosis of Aorta
Tricuspid Valve Disease
Cardiomegaly
Atherosclerosis of Aorta
Tricuspid Valve Disease
Cardiomegaly
Atherosclerosis of Aorta
Tricuspid Valve Disease
Mitral and Aortic Valve Disorder
Mitral Valve Disease
Cardiomyopathy, Hypertrophic
Pulmonary Hypertension
Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
First Degree Heart Block
Heart Valve Disorders
Aortic Valve Disease
Aortic Ectasia
Sinus Bradycardia
Atherosclerosis
Heart Disease
Arrhythmias
Supraventricular Tachycardia
Sinus Tachycardia
Rheumatic Aortic Valve Disorders
Chest Pain
Atrial Fibrillation
Rheumatic Tricuspid Disease
Vascular Duplex Ultrasonography and Plethysmography
Tilt_Testing
Electrocardiogram (EKG)
Cardiomyopathy
Mitral Valve Regurgitation
Heart Attack (Acute Myocardial Infarction)
Cardiac Myocardial Perfusion Imaging
Syncope
  • View other providers who treat Syncope
Coronary Artery Disease (CAD)
Ventricular Tachycardia (VT)
Acute Coronary Syndrome
Cardiac Ultrasound
Cardiac Catheterization (incl. Coronary Angiography)
Atrial Flutter
Cardioversion, Elective
Heart Murmur
Heart Palpitations
Heart Attack (NSTEMI)
Hypertension
Aortic Valve Regurgitation
Cardioverter-Defibrillator or Pacemaker Insertion, Removal or Repair
Paroxysmal Atrial Fibrillation
Hypotension
Hypotension (Excluding Maternal)
Orthostatic Hypotension
Congestive Heart Failure
Sick Sinus Syndrome
Second Degree Heart Block
Type 2 Heart Block - Mobitz
Peripheral Edema
Hyperlipidemia
Aortic Stenosis
Percutaneous Coronary Intervention (PCI)
Coronary Angioplasty, Atherectomy and Stent
Cardiomyopathy, Dilated
Automatic Implantable Cardioverter Defibrillator (ICD) Implantation
Lipid Disorders
Systolic Heart Failure
Hypertensive Heart Disease
Hypertensive Heart without Failure
Third Degree Heart Block
Acute Congestive Heart Failure
Peripheral Vascular Disease (PAD, PVD)
Heart Attack (STEMI)
Chronic Congestive Heart Failure
Mitral Valve Prolapse
Pericardial Disease
Hypertensive Heart with Failure
Long QT Syndrome
Patent Foramen Ovale (PFO)
Hypertensive Chronic Kidney Disease
Chest CT (incl. Heart and Lungs)
Aortic Aneurysm
Angina
  • View other providers who treat Angina
Abdominal Aortic Aneurysm (AAA)
Acute Deep Vein Thrombosis (DVT)
Acute Endocarditis
Acute Venous Embolism Thrombosis
Aneurysm
  • View other providers who treat Aneurysm
Aneurysm of Heart
Aortic Dissection
Arteriovenous Fistula
Atrial Septal Defect
Atypical Atrial Flutter
Cardiac Tamponade
Cardiomyopathy, Restrictive
Carotid Artery Disease
Congenital Aortic Valve Disorders
Congenital Heart Defects
Congenital Heart Disease
Constrictive Pericarditis
Cor Pulmonale
Coronary Artery Aneurysm
Coronary Artery Dissection
Coronary Vessel Malformation
Deep Vein Thrombosis (DVT)
Ehlers-Danlos Syndrome
Eisenmenger's Complex
Endocarditis
Granulomatosis
Hyperkalemia
Hypertensive Encephalopathy
Hypertensive Heart and Chronic Kidney Disease
Hypokalemia
Infective Endocarditis
Kawasaki Disease
Limb Swelling
Limb Swelling Caused by Fluid Overload
Lipidoses (incl. Gaucher Disease)
Long COVID Disorder
Mitral Valve Stenosis
Muscular Dystrophy (MD)
Noninfective Endocarditis
Nonrheumatic Mitral Stenosis
Nonrheumatic Tricuspid Disease
Pericarditis
Peripheral Arterial Disease of Extremities
Postural Orthostatic Tachycardia Syndrome
Primary Pulmonary Hypertension
Prinzmetal Angina
Pulmonary Edema
Pulmonary Valve Disease
Rheumatic Mitral Stenosis
Scleroderma
Septal Defect
Subacute Endocarditis
Systemic Vasculitis
Tetralogy of Fallot
Typical Atrial Flutter
Unstable Angina
Venous Compression
Ventricular Fibrillation
Ventricular Septal Defect
Vitamin D Deficiency
Wolff-Parkinson-White Pattern
Arrhythmia Screening
Cardiac Imaging
Cardiovascular Diagnostic Test
Cardiovascular Stress Test
Chest Pain Evaluation
Cholesterol Screening
Coronary Angiogram
Coronary Thrombectomy
Dobutamine Thallium Stress Test
HeartAware Online Risk Screening
Insertion of Left Ventricular Lead for Pacemaker or Cardioverter and Defibrillator
Nuclear Stress Testing
Pacemaker Insertion or Replacement
Peripheral Arterial Disease Screening (PAD)
Peripheral Artery Catheterization
Pharmacologic Nuclear Stress Test
Pharmacologic Stress Test, Adenosine
Removal or Revision of Pacemaker or Cardioverter and-or Defibrillator
Stress Test
Structural Heart Disease Evaluations and Treatment
TCD Bubble Test
Thoracentesis
Tilt Table Testing
Treadmill Stress Test

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Navigate Plus POS
    Navigate HMO
    Choice Plus POS
    Options PPO
  • First Health (Coventry Health Care) PPO
  • Choice Plus POS II
    Open Choice PPO
    APCN Choice POS II
    Elect Choice (Open Access) EPO
  • BlueCard PPO
  • Cigna PPO
    Open Access Plus

Patient Satisfaction

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About Me

Specialties*
Cardiology
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Michael Brennan, MD. To arrange an appointment, call the number on Dr. Brennan's profile.

Dr. Brennan frequently treats the following conditions: Cardiomegaly, Atherosclerosis of Aorta, Tricuspid Valve Disease, Mitral and Aortic Valve Disorder, Mitral Valve Disease, Cardiomyopathy, Hypertrophic, Pulmonary Hypertension, Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension), First Degree Heart Block, Heart Valve Disorders, Aortic Valve Disease, Aortic Ectasia and Sinus Bradycardia. See more on Sharecare.

Dr. Michael Brennan, MD is affiliated with Sheridan Memorial Hospital.

Yes, Dr. Michael Brennan, MD holds board certification in Cardiovascular Disease and Internal Medicine.

Education
Medical Education
  • UNIVERSITY OF OKLAHOMA / HEALTH SCIENCES CENTER
    1984
Medical Education
Board Certifications
  • Cardiovascular Disease and Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Hospital Affiliations

  • Sheridan Memorial Hospital

    1401 W 5th St, Sheridan, WY

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