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Our Care Sites
A provider stands in her office with a clipboard, looking assuredly
Trinity Health Michigan Medical Groups
Multi-specialty Care
A provider helps rehabilitate an elderly woman's shoulder with a weight routine
Probility Physical Therapy
Physical therapy services
Two teenage girls exercise at a Trinity Elite facility
TrinityElite Sports Performance
Athletic development services
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Marlo Leonen, MD

Marlo Leonen, MD

Cardiology

Provider Ratings

4.9 out of 5 (225 ratings)

Provider Groups

  • Trinity Health IHA Medical Group

Primary Contact

(734) 712-8000
Accepting New Patients
Provider Groups

  • Trinity Health IHA Medical Group

Primary Contact
(734) 712-8000
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Services & Specialties

Areas of Specialization

  • Cardiology

Locations & Contact

Primary Location

Trinity Health Michigan Heart - Ann Arbor Campus

5325 Elliott Dr
2nd Floor
Ypsilanti, MI 48197

View hours
Monday
8:00am - 5:00pm
Tuesday
8:00am - 5:00pm
Wednesday
8:00am - 5:00pm
Thursday
8:00am - 5:00pm
Friday
8:00am - 5:00pm
Trinity Health Michigan Heart - Ann Arbor Campus
(734) 712-8000 View Details

Trinity Health Michigan Heart - Canton

1600 S Canton Center Rd
Ste 345
Canton, MI 48188

View hours
Monday
8:00am - 5:00pm
Tuesday
8:00am - 5:00pm
Wednesday
8:00am - 5:00pm
Thursday
8:00am - 5:00pm
Friday
8:00am - 5:00pm
Trinity Health Michigan Heart - Canton
(734) 398-7515 View Details

Also Affiliated With...

About

Marlo F. Leonen, MD, has nearly 20 years of experience practicing in the area. His clinical interests include congestive heart failure, non-invasive cardiology and hypertension (high blood pressure). Dr. Leonen also has additional training in adult comprehensive echocardiography and nuclear cardiology. He is the director of nuclear cardiology and congestive heart failure services at Trinity Health Michigan Heart.



Insurances Accepted

  • Aetna
  • Aetna (Medicare Advantage)
  • Aetna Better Health of Michigan
  • BCBS Michigan (Medicare Advantage)
  • Blue Care Network of Michigan
  • Blue Cross Complete of Michigan
  • BlueCross Blue Shield Michigan
  • Cofinity
  • Community Care Associates
  • Health Alliance Plan of Michigan
  • Humana Medicare Advantage
  • McLaren Health Plan
  • Medicaid Michigan
  • Medicare Michigan
  • Meridian Health Plan
  • Molina Healthcare of Michigan
  • Priority Health
  • Priority Health Medicaid
  • Priority Health Medicare
  • Railroad Medicare Michigan
  • Tricare Humana Military
  • Tricare Prime Remote
  • Trinity Health
  • United Healthcare
  • UnitedHealthcare Community Plan Michigan
  • University of Michigan Health Plan
  • Veterans Choice Program
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Conditions Treated

  • Heart Care

Education & Certifications

Education

Medical School:
University of the Philippines College of Medicine

Fellowship:
Wayne State University

Internship:
Baylor College of Medicine

Board Certifications

American Board of Internal Medicine/Cardiovascular Disease

American Board of Internal Medicine/Advanced Heart Failure-Transplant Cardio

American Board of Internal Medicine

Provider Groups

Trinity Health IHA Medical Group

Provider Ratings

The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy. Learn More >

4.9 out of 5

(225 ratings)

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

72 Reviews

01/20/2026

Satisfied

01/20/2026

Recommend him strongly,

01/09/2026

Dr. Leonen is a very caring, compassionate doctor. He spent time asking many questions to have better knowledge of my visit.

12/11/2025

Dr. Leonen always makes me feel positive and compliments my efforts to stay healthy

12/09/2025

I trust him completely

12/05/2025

The Dr tries to make the appointment as easy as possible

11/20/2025

Dr Leonen is a wonderful Doctor always kind and very understanding I’m glad he’s my cardiologist Many Thanks

11/19/2025

The ECG test determined several "branch blocks" which he didn't even bother to explain, in terms of what that meant and what risks it might mean to my heart performance or activities.

11/19/2025

Great Doctor very kind

11/05/2025

very pleasant & understanding

10/16/2025

I feel at peace with him as my cardiologist

09/17/2025

I am extremely pleased with his treatment of my heart condition.

09/15/2025

We came away feeling encouraged and felt he is the only doctor who extended me any kind of hope. We are much relieved to have him in charge of my heart issues.

08/29/2025

Dr. Leonen is amazing. He took great care of me when I first learned that I had heart failure and my stroke. He took me under his care and provided me the best care that I could ask for. I am truly grateful.

08/27/2025

He is genuinely personable and friendly in our interactions. went the extra distance to get my BP under control.

08/27/2025

Very personable and willing to spend time explaining everything in language that I could understand.

08/20/2025

Professional and personal.

08/18/2025

Dr Leonen is a great doctor. He takes his time with you and answers any questions you have.

07/08/2025

Dr Leonen explained my condition and method of treatment/rehab very well He answered all my questions. I would highly recommend him to anyone needing a cardiologist

07/01/2025

Would recommend him to anybody.

07/01/2025

All good

06/12/2025

Absolutely great

06/05/2025

My visit was very relaxing great service

04/23/2025

Explanations clearly given. Relaxed visit with questions easily answered.

04/15/2025

Dr Leonen & Dr Lyons working together saved my life. Dr Leonen has kept me on the right track on getting me healthy. It’s been 10 months since my surgery & I can’t believe I’m walking 5 miles a day & I’m more active now than when I was in my sixties. Thank You ! Dr Leonen & your staff .. RG Thomas

04/14/2025

Just keep doing what you’re doing. I found the visit was a good experience & going to the Doctor was always hard for me, but it starting to get easier for me.

04/14/2025

Very good experience. Knowledgeable, compassionate, caring.

04/08/2025

Patient for over 25 years. That says it all.

03/19/2025

Always seems to know my "history", never seems rushed. Wonderful doctor both in the hospital setting and in the practice.

03/16/2025

Very pleasant and relaxing

03/15/2025

Dr. Leonen knows his science and how to deal with people. He's a smart, sincere human. I highly recommend him.

03/14/2025

Dr. Leonen knows science and he knows how to work with people. An great combination.

02/28/2025

Dr. Leonen is a wonderful doctor. He's very thorough, listens to my concerns and helps me.

01/24/2025

Great

01/21/2025

always pleasent

01/17/2025

Very kind, listened carefully to me and was reassuring.

01/11/2025

Dr Leonen is kind, caring and thorough. Knows his stuff too. I had many different cardiologist and he has been the best of them!!

01/08/2025

Gave impression that he was more interested in quickly getting done with appointment than understanding any concerns

01/03/2025

Doctor Leonen is my new cardio doctor as my previous doctor retired. This was our first meeting. I was so impressed with his manner, kindness and knowledge about my specific needs and issues. I’ve been anxious about my condition and he totally alleviated my fears. So happy I got him.

01/03/2025

I love Dr Leonen, he is kind, caring and through

01/02/2025

This is a new doctor and I’m very pleased to have him.

12/09/2024

Dr. Leonen always is positive and makes me feel good about my health. He explains things well and takes time to listen. I came away feeling confident about my heart health.

12/04/2024

Dr. Marlo Leonen is an awesome cardiologist! He takes the time to get to know you and has alway taken great intrest in my life in general and what's going on with both my health and my family.

12/03/2024

I believe Dr Leonen is a perfect example for how all doctors should conduct visits with their patience.

12/03/2024

concern about left chest pain with no resolution

12/02/2024

Dr. Marlo Leonen is extremely knowledgeable, compassionate, and dedicated to finding and treating the diagnosis for his patients. He is an excellent doctor and I am grateful to have him as my doctor.

11/06/2024

Dr Leonen, his nurses and teh Canton Staff are great.

11/06/2024

Very professional and make you feel comfortable to ask question .

11/06/2024

Keep up the good work

11/01/2024

Hard to get an appointment

10/31/2024

Everyone is so understanding

10/31/2024

Dr. Leonen has helped me successfully negotiate some serious cardiac issues, I literally trust him with my life and am very thankful to have him be a part of my health care team!

10/31/2024

Thank you.

10/30/2024

All good always

10/16/2024

I have seen Dr Leonin for years. I drive from Fowlerville to Canton to see him. He is the best!

09/14/2024

Very caring. Up to date with new meds.

09/11/2024

On time. Which doesn't happen often with med appts.

08/21/2024

He seemed to be very personable. Important tlo me.

08/11/2024

Dr. Leonen is very kind, understanding, listens to your concerns, explains why he is changing meds or recommending a different plan of action. He is a genuinely caring, informative of his medical specialty, takes time with you when you have any questions/concerns. Highly recommended

08/05/2024

Dr Leonen made me feel safe and informed

07/10/2024

surprisingly this was the 1st visit in a long period that I did not have any negative feedback - my visit was great!

06/06/2024

Kind, warm, caring, great listener, thorough, knowledgeable, humble, gentle, compassionate, communicative, prompt and professional.

06/06/2024

Dr. Leonen is very thorough and professional. I appreciate how he answers all my questions regarding my heart issues.

06/05/2024

Dr. LEONEN IS FANTASTIC!!

05/30/2024

A pleasant experience all around

05/23/2024

This was my first time seeing Dr. Leonen in the Canton office, but I'd do it again, if needed.

04/19/2024

realy great

04/18/2024

The whole staff at Michigan heart did an awsome job they saved my life and I will always be greatful

04/18/2024

a doctor that you would come back to

04/12/2024

He was thorough and explains the diagnosis well

03/15/2024

great

03/12/2024

It was my first time seeing this doctor and he made me feel very comfortable.
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(734) 712-8000

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