UCHealth Heart and Vascular Clinic - Longmont Clinic

Home Locations UCHealth Heart and Vascular Clinic - Longmont Clinic

Because we are in a health care setting, masks are still required in all facilities. Thank you for helping keep our patients and staff safe.

Monday: 8am – 5pm
Tuesday: 8am – 5pm
Wednesday: 8am – 5pm
Thursday: 8am – 5pm
Friday: 8am – 5pm
Saturday: Closed
Sunday: Closed
Your team
Robert Shapiro, MD, FACC
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Interventional Cardiology

John P Stathis, MD
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Interventional Cardiology

Adriana Lorenzo, FNP-C
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Kaitlin M Mossberg, PA-C
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Renowned and trusted heart and vascular care close to home

From the common to the complex, we believe no two people’s conditions are exactly alike. That’s why our team of cardiovascular experts works to treat your unique situation and needs.

Our Northern Colorado team of over 40 cardiologists, electrophysiologists and cardiovascular surgeons work together to provide quality, compassionate and accessible cardiovascular care to help with your specific heart and vascular needs. Through innovative care, medication and lifestyle guidance, we aim to treat you as a person—not just a condition.

In addition to practicing at the Longmont Clinic, our doctors perform advanced cardiac procedures at Longs Peak Hospital.

Conditions we treat

  • Arrhythmia detection and management
  • Atherosclerosis
  • Cardiomyopathy
  • Heart failure
  • Hypertension/pulmonary disorders
  • Ischemic heart disease and myocardial infarction
  • Pericardial disease
  • Valve disorders
  • Vascular disease
  • Women’s cardiovascular care

Heart attack care

Our heart attack response program at Longs Peak Hospital’s door-to-balloon times are consistently below the national average. When you arrive at the hospital, we get you seen faster, which means restoring blood flow quicker.

Services and treatments

Diagnostic procedures

  • Cardiac catheterization*
  • Echocardiograms
  • EKGs
  • Intravascular ultrasound*
  • Loop recorders*
  • Stress testing
  • Transesophageal echocardiograms (TEE)*


  • Angioplasty*
  • Cardioversions*
  • Coronary stenting*
  • Preventive cardiology
  • Thrombectomy*

*Denotes that the procedure or treatment is only offered at Longs Peak Hospital and not available at the Longmont Clinic.


My Health Connection: your online patient portal.

We encourage all of our patients to sign up for My Health Connection. This is your personal patient portal to request prescription refills, to view your medical records or test results and to contact our office.

Online scheduling is currently not available. Please call our office to schedule your appointment.

Please provide all the following information at your scheduled appointment:

  • Photo ID
  • Insurance card
  • Referral (if needed)

To allow enough time to complete your check-in process, please arrive 15 minutes before your scheduled appointment.

We require 24-hour advance notice if you cannot make it to your scheduled appointment. If you have young children who will be accompanying you to your appointment, please try to bring another adult with you to sit with the children during your time.

Questions? Give us a call!


Our office participates with many different insurance companies. Because insurance plans, policies and laws often change, please contact your insurance company to see if we are a contracted provider.

>> Find insurance and billing information.

Please notify us if you have an insurance plan change, coverage change or insurance loss so we can properly bill your claims in a timely manner.


For more information or questions about your bill, please visit UCHealth online bill pay.

Heart and vascular health information

UCHealth offers an extensive heart and vascular care library, including information on tests and procedures, conditions and diseases.

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