Megan McCarthy, DNP, NP-C, CVNP-BC

Cardiologist | Cardiovascular Disease

150 S 12th St Phoenix AZ, 85034 Show map

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About

Megan McCarthy, DNP, NP-C, CVNP-BC
Cardiovascular & Occupational Health Specialist for First Responders

Dr. Megan McCarthy is a double board-certified nurse practitioner specializing in cardiovascular and occupational health, with a dedicated focus on the unique needs of firefighters, law enforcement officers, and their families. With over 25 years of clinical experience and a deep commitment to first responder wellness, she provides expert care at the Phoenix Fire Department Health Center with Vincere Cancer Center. She first Nurse Practitioner to work at the Phoenix Fire Health Center.

A healthcare entrepreneur with a passion for public safety, Dr. McCarthy Co-owned and founded two successful medical practices—Heart Fit for Duty LLC, a pioneering occupational health clinic for first responders, and Health Fit Clinic, a telemedicine platform designed to expand access to functional wellness for first responders and their families across the country. Her entrepreneurial spirit is rooted in creating practical, evidence-based solutions for real-world challenges in cardiovascular and occupational health.

Dr. McCarthy is board certified by both the American Academy of Nurse Practitioners (Adult/Geriatric NP) and the American Board of Cardiovascular Medicine (Cardiology NP). She is also a Certified Occupational Hearing Conservationist (COHC) and an active member of the American Association of Nurse Practitioners and the American College of Cardiology.

She earned her Doctorate in Nursing Practice from Grand Canyon University, where her research focused on identifying sudden cardiac death risk and reducing cardiac-focused anxiety in firefighters. Her clinical expertise includes advanced diagnostics such as VO₂ max treadmill and cycle ergometry, annual firefighter physicals, cardiopulmonary stress testing (Cycle, WFI, Bruce, Davis, Balke-C protocols), advanced lipid testing, hormone management and preventive cardiac and cancer screening protocols using echocardiography and ultrasound.

Through her work, Dr. McCarthy continues to lead the field in first responder health, combining cutting-edge care with a deep understanding of the physical and psychological demands of public safety professions.

Education and Training

Grand Canyon University Doctorate of Nursing Practice 2021

Arizona State University Masters Degree in Nursing 2008

College of St Benedict Bachelor's Degree in Nursing 2003

Rochester Community College Associates Degree in Nursing 1996

Board Certification

Board Certified by the American College of Cardiovascular Nurses

Board Certified by the American Academy of Nurse Practitioners

Provider Details

Female English

Areas of expertise and specialization

Advanced lipid testing, functional medicine labs, CAC score, Stress testing, treadmill and cycle ergometry, VO2 max testing, Cardiopulmonary Stress Testing, echocardiogram, PFAS, hormone management and ultrasounds

Faculty Titles & Positions

Preceptor for doctoral students Grand Canyon University 2024 - Present
Health Provider Vincere Cancer Center / Phoenix Fire Department Health Center 2023 - Present
Owner Megan McCarthy PLLC DBA Health Fit Clinic 2012 - Present
Yuma Cardiology Associates 2021 - 2023
Nurse Practitioner 1582 LLC 2020 - 2022
Heart and Vascular Cardiology Cardiovascular Outpatient practice clinic 2019 - 2022
Creator and Co-Owner, Occupational Annual Physicals and Cardiovascular Primary Care Practice for First Responders Heart Fit for Duty LLC 2010 - 2018
Gilbert Cardiology – Cardiovascular Outpatient practice clinic 2016 - 2018
Adult Nurse Practitioner AZ Sun Family Practice 2012 - 2015
Adult Nurse Practitioner Mercy Gilbert Medical Center 2008 - 2013
Adult Nurse Practitioner Heart Sciences Center – Dr Nabil Dib 2008 - 2011
Adult Nurse Practitioner Private Cardiology practice clinic 2011 - 2012
Adult Nurse Practitioner Transition Clinic: Internal medicine clinic 2011 - 2012
Clinical Education Specialist Cardiac / Tele / Critical Care Mercy Gilbert Medical Center 2007 - 2008
Research Assistant Focus Childhood Asthma Breath Mobile Arizona State University 2007 - 2007
Clinical Education Specialist St. Joseph’s Hospital- Phoenix, AZ 2004 - 2007
Cardiovascular Intensive Care Nurse Educator Abbott Northwestern Hospital- Minneapolis, MN 2002 - 2004
Cardiovascular Surgical Intensive Care Unit Staff RN Abbott Northwestern Hospital - Minneapolis, MN 2000 - 2002
Surgical ICU staff RN Regions Hospital - St Paul, MN 1999 - 1999
Critical Care Float Pool - staff RN St Cloud Hospital -St Cloud, MN 1996 - 1999
Staff RN, Evening Charge Nurse Mariner Healthcare Nursing Home -Wilmington, NC 1995 - 1996

Professional Memberships

American College of Cardiology
American College of Cardiology – Sports Cardiology Society
American College of Cardiology Allied Health Fellow
Sigma Theta Tau Member

What do you attribute your success to?

My faith in God, being called to this work. Being raised in a highly successful family of trail blazers and entrepreneurs, a no quit attitude and wonderful support across the public safety community.

Areas of research

Firefighter Health and Wellness, VO2 and Cardiopulmonary Stress Testing, Occupational health and Cancer and Cardiovascular screening and care in public safety.