Engaging patients in high-quality, compassionate health care

Cardiology Department
at Boulder Medical Center

Top Heart and Vascular Care Doctors

To schedule an appointment
please call (303) 440-3057


About Cardiology at Boulder Medical Center

Boulder Medical Center partners with the UCHealth Heart and Vascular Care to provide comprehensive cardiology services at our Broadway clinic. We offer a full spectrum of quality and affordable cardiac care under one roof, including general cardiology and cardio-testing; women’s cardiovascular health; interventional, electrophysiology and structural heart cardiology; and congestive heart failure care.

Patients benefit from our ability to:

  • Assess, diagnose and treat patients with simple to complex vascular issues;
  • Ensure continuous care between a patient’s primary doctor and our cardiology care team;
  • Offer access to a team of the area’s top cardio physicians;
  • Provide one of Boulder County’s most affordable sources of cardio testing and care.

Meet the Boulder Medical Center – UCHealth
Cardiology Doctors


Dr. C. Patrick Green, MD

Dr. Green completed his internship and residency at UCHealth Sciences Center in Denver from 1993 to 1996 after attending medical school in Kansas City. He serves as Director of Non-invasive Cardiology for UCHealth Heart and Vascular Clinic in Northern Colorado, specializing in Sonography and Nuclear Medicine. He is also interested in Sports Cardiology. Dr. Green enjoys running marathons with his wife.


Dr. William E. Miller, MD

Dr. Miller moved to Colorado after completing his fellowship at the University of Texas Health and Science Center in San Antonio, Texas. An international lecturer on Interventional Vascular Disease, he has a special interest in Limb Salvage procedures and performs over 250 vascular procedures a year. Dr. Miller and his wife enjoy traveling together and recently welcomed a new grandchild into their family.


Dr. Lance Richards, DO

Originally from Michigan, Dr. Richards completed his residency in Internal Medicine and fellowship in Cardiovascular Disease at Metro Health Hospital / Michigan State University in Grand Rapids. He specializes in Congestive Heart Failure and practices general cardiology, nuclear cardiology, echocardiography and preventive medicine. He lives in Fort Collins, Colo. with his wife and two children.


Dr. Eric M. Riles, MD

Dr. Riles attended medical school at New York University and completed his internal medicine, cardiology, and electrophysiology training at the University of Michigan, Boston University and the University of California in San Francisco. He specializes in treating individuals affected by heart rhythm disorders including atrial fibrillation, supraventricular tachycardia, and ventricular tachycardia. Dr. Riles performs catheter ablation for the spectrum of cardiac arrhythmias and also specializes in the implantation of cardiac defibrillators and pacemakers. He enjoys hiking, camping, skiing and other outdoor pursuits with his wife (also a physician) and two young children.


Dr. Justin A Strote, MD

Dr. Strote received his MD degree at the University of Michigan than went on to complete his Fellowship in Interventional Cardiology at University of Washington in Seattle. He is a specialist in structural heart procedures including Mitral Clip, TAVR implants and Atrial Appendage Occlusions and has been involved with several structural heart research trials at Colorado State University. Dr. Strote is an avid reader and recently read the book, Boy’s in The Boat, about the rowing team from the University of Washington, his alma mater. The book is a great historical account of the 1936 Berlin Olympics. Dr. Strote and his family moved to Colorado in 2008; his wife is a Boulder native.


Dr. Stephen A. Treat, MD

Dr. Treat came to work with UCHealth Colorado in 1999 after finishing his cardiology fellowship at the University of New Mexico Hospitals in Albuquerque, N.M.. Prior to that, he completed his residency at University of Arizona in Tucson. Dr. Treat specializes in Structural Heart Imagining including CT and Echo interpretation. He also interprets imaging and procedures associated with TAVR, MitraClip and Left Atrial appendage closure. Dr. Treat enjoys playing golf and spending time with his wife and two daughters.


Cardiology Diagnostic Procedures at Boulder Medical Center

Electrocardiogram: The electrocardiogram (ECG) is a simple test used in the diagnosis and therapy of many cardiac conditions and provides essential information about a patient’s condition and progress. The ECG is a graphical representation of the electrical activity of the heart. As such, it can tell us such information as where an electrical impulse originated, if a rhythm is regular, and if damage to the heart muscle exists.

Echocardiography: Echocardiography is one of the most important non-invasive techniques for the assessment of cardiovascular disease. It is quick, safe for the patient and provides reliable clinical information. Cardiac ultrasound uses high frequency sound waves to create images of both cardiac valve structure and wall motion while the heart is beating. Information gleaned can pinpoint specific abnormalities and furnish direction for further diagnostic studies and treatment. A state-of-the-art cardiac ultrasound machine, providing 2-D and M-Mode imaging as well as pulsed wave, continuous wave and color flow Doppler imaging is utilized. Reports are faxed to referring physicians on the same day of the procedure.

Exercise Tolerance Testing: A variety of exercise tolerance tests are administered at the Boulder Medical Center to evaluate the heart’s response to exercise. Exercise increases the oxygen demand on the heart by making it pump faster and move vigorously. Cardiovascular abnormalities not present at rest, such as ECG abnormalities, blood pressure alterations or rhythm disturbances are often elicited following exercise. Also, the amount of blood flow through the coronary arteries and muscular responses to exercise can be assessed by this technique. Stress echocardiograms determine the adequacy of blood flow to the heart muscle under rest and exercise conditions. Furthermore the function of the heart chambers, valves and muscle during exercise can also be ascertained by exercise tolerance testing.

Nuclear Medicine: Refers to a medicine (a pharmaceutical) that is attached to a small amount of radioactive material (a radioisotope).  The combination is a called a radiopharmaceutical.  The radiopharmaceutical used in cardiac imaging is commonly referred to as Sestamibi or its trade name, Cardiolite.

Cardiac Nuclear Medicine: Is imaging is used to evaluate the heart for the presence of coronary artery disease.  It can also be used to assess for cardiomyopathy and the impact of chemotherapy on cardiac function. A cardiac nuclear scan involves small amounts of the radiopharmaceutical (Sestamibi or Cardiolite) that is injected into a vein to produce images of the heart.  These images help specially trained and certified cardiologists assess blood supply to the heart muscle.  Images are obtained at rest and after exercise on a treadmill.  For those people not able to walk on a treadmill, a medication called regadenoson (Lexiscan) is given through an IV line that increases blood flow through the coronary arteries. Images of the myocardium (heart muscle) are obtained while the patient is lying under the camera in a process called single photon emission computed tomography (SPECT).   These images are able to identify molecular activity within the heart and offer the potential to identify coronary disease in its early stages as well as assess the response to therapeutic interventions.

Cardiac Catheterization: Cardiac Catheterization is an invasive procedure allowing the cardiologist to accurately and precisely evaluate the location and extent of blockages in the coronary arteries and to determine any cardiac muscle abnormalities or changes in valve function. Diagnostic catheterization studies are performed under local anesthetic and people usually go home the same day.

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