Monika Jacquelina Leja MD

Clinical Assistant Professor, Internal Medicine
Cardiology, Internal Medicine
Clinical Interests:

Cardio-oncology, cardiotoxicity from chemotherapy, heart tumors, amyloid, cardiovascular imaging including echocardiography, nuclear stress testing, coronary computed tomography angiography and diagnostic angiography


U of M Internal Medicine Cardiology

Northville Health Center Suite 210
39901 Traditions Dr

U of M Cardiology

Cardiovascular Center Floor 3
1500 E Medical Center Dr SPC 5856
Ann Arbor


Medical School or Training

  • Loyola University of Chicago - Stritch School of Medicine, 2001


  • Baylor College of Medicine, Internal Medicine, TX, 2004

  • Baylor College of Medicine, Cardiovascular Disease, TX, 2007

Board Certification

  • Cardiovascular Disease

  • Internal Medicine


Dr. Leja is focused on the intersection of cardiology and oncology, working toward helping create treatments that slow the progression of cardiovascular conditions while in cancer treatments, or to manage the toxicity side effects of many cancer treatment drugs.  She also works extensively with heart tumor patients, creating a multidisciplinary approach with oncology, surgery, and radiology, in managing these challenging cases. 


Dr. Monika Leja is a specialist in cardio-oncology and cardiovascular imaging who sees patients at the Cardiovascular Center and U-M Livonia Health Center.  She is developing a clinic for cardiology-oncology patients which includes patients with cardiotoxicity from their chemotherapy, cardiac tumors, amyloid, hypertension induced by chemotherapy, and all cardiac complications from cancer therapy. She has started a unique cardiac tumor program, first of its kind in the state.  This field is pushing the frontier of health care for patients who perhaps have a preexisting heart condition and are diagnosed with cancer, or patients who are suffering from the toxicity side effects of cancer treatment drugs. She is dedicated to finding new ways to prevent the progression or manage the balance between cancer treatment and the progression of heart issues.

Raised in Orchard Lake, Michigan, Dr. Leja comes from a Polish heritage and speaks Polish fluently.  With the large Polish-American population in Southeastern Michigan, she hopes her language skills can be put to use in her practice. Before joining the University of Michigan team, Dr. Leja was a lecturer and clinician at the MD Anderson Cancer Center and an assistant professor at Weill Cornell Medical College. She completed a fellowship at Methodist DeBakey Heart Institute and both a residency and fellowship at the Baylor College of Medicine, Houston, TX, after earning her bachelors from the University of Michigan and completing medical school at the Loyal University of Chicago Stritch School of Medicine.