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Maribel Hernandez, MD

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Practice Philosophy

The role of the Lankenau Heart Group physician is one of both educator and healer, with the focus to treat each individual patient to improve longevity and quality of life. Not every patient needs to be treated in the same way, and our physicians take the patient’s preference into account when tailoring a personalized course of treatment for them. We believe it is key to listen to our patient and their family members to make sure they have a complete understanding of their cardiac illness as well as their treatment options. For the best possible outcome, it is valuable for both the patient and their family to have a voice in the patient’s care and be invested in their treatment plan.

This doctor is employed by Main Line HealthCare, the multispecialty physician network of Main Line Health, including more than 350 community and hospital-based physicians.

Locations and Appointments

Lankenau Heart Pavilion, Mezzanine Level
100 East Lancaster Avenue
Wynnewood, PA 19096
  • Phone: 484.476.1000
  • Fax: 484.476.9000
  • Accessibility: Public Transportation

Springfield Square
965 Baltimore Pike, Suite 2B
Springfield, PA 19064
  • Phone: 484.476.1000
  • Fax: 484.476.9000
  • Accessibility: Public Transportation

Main Line Health Concordville
1020 Baltimore Pike, Suite 310
Glen Mills, PA 19342

Main Line Health King of Prussia
120 Valley Green Lane
King of Prussia, PA 19406
  • Phone: 484.476.1000
  • Fax: 484.476.9000
  • Accessibility: Public Transportation

Do you have questions or are you looking for help in choosing the right provider?

Call 1.866.CALL.MLH (1.866.225.5654), Monday through Friday between 8:00 am–6:00 pm ET, to speak with a member of our referral staff who can help find the doctor who is right for you.

About Maribel Hernandez, MD

For Dr. Maribel Hernández, cardiology isn’t just a career. A member of the Lankenau Heart Institute and among one of the largest female cardiology teams in the region, her commitment to women and heart disease is a personal passion.

Dr. Hernández was born in San Juan, Puerto Rico. She received her bachelor’s degree at Yale University and her Medical Degree at Stanford University. She did her residency in the Harvard Hospital System in Boston and her fellowship at the Hospital of the Medical College of Pennsylvania and the Lankenau Hospital. Dr. Hernández is Board Certified by the American Board of Cardiovascular Disease and Clinical Electrophysiology. Dr. Hernández is also the Clinical Assistant Professor of Medicine, Thomas Jefferson University.

Serving as a cardiologist for 30 years and on the medical staff of Main Line Health for over 20 years, Dr. Hernández specializes in managing patients with heart rhythm disorders. She has been an advocate for a future that includes earlier detection of heart disease in women and women-centric research to help improve treatments and outcomes. Dr. Hernandez has participated in clinical research that has led to the approval of the new technologies as well as, in the development of new clinical guidelines for their use.

She serves as the Medical Director of Lankenau Heart Institute’s Women’s Heart Initiative, supporting awareness, education and prevention of heart disease in women within the community, and has been involved with the American Heart Association (AHA) for over 15 years. She was recognized as the AHA’s first ever ‘Woman of Heart’ in 2013 and was on the cover of Philadelphia magazine’s Top Doc issue in May 2010. Most recently, Dr. Hernández was elected to represent Lankenau Heart Institute as the 2017-2018 AHA Go Red for Women ‘Heart Champion’ to help share the ‘Go Red’ message within our community.

Dr. Hernández has a long-standing passion for fighting heart disease with an emphasis on personal outreach to the Latina community. As a Latina woman, Dr. Hernández clearly understands the unique heart health risk for the individuals of Hispanic descent. During the COVID-19 pandemic, she has been a vaccine ambassador, providing educational outreach to the Hispanic community about vaccines and participated in various community vaccination clinics.

Dr. Hernandez is board member of Congreso de Latinos Unidos, a member of the Society of Latino Ibero Medical Professionals in Philadelphia, and a member of the Women's Nonprofit Leadership Initiative which strives to add diversity to Institution Boards with a focus on Academic and Healthcare Boards.

She has participated in Go Red Corazon, (an AHA initiate focusing on outreach to Latina women) served as guest speaker at the annual AHA Latina Luncheon and was the recipient of the AHA Philadelphia Chapter’s 2014 Por Tu Corazón Ambassador Award for her extraordinary, long-standing passion and commitment to building healthier lives free of cardiovascular disease and stroke in the Latino community.

  • Gender: Female
  • Years of Experience: 27
  • Language: English, Spanish
Specialties Accepting New Patients
Electrophysiology Board certified since 1994
Cardiovascular Disease Board certified since 1991
Internal Medicine Board certified since 1989
Primary Affiliation
Academic Titles
  • Clinical Assistant Professor of Medicine
  • Jefferson Medical College
Clinical Titles
  • Medical Director, Women’s Heart Initiative - Lankenau Heart Institute


Medical school
  • Stanford University
  • Harvard Medical School
  • New England Deaconess Hospital
  • Lankenau Hospital
  • The Medical College of PA

*Members of the Main Line Health medical staff are affiliated with Bryn Mawr Hospital, Lankenau Medical Center, Paoli Hospital and Riddle Hospital. Membership on the medical staff of any of our hospitals does not constitute an employment or agency relationship.

Awards & Memberships

Current Membership & Activities
  • Fellow - American College of Cardiology
  • Heart Rhythm Society

Patient Satisfaction Ratings and Comments