Back to homepage
MyChart Patient Portal
Zachary Joe Maranar Leshen

Zachary Joe Maranar Leshen, MD

Cardiology

Provider Ratings

4.80 out of 5 (278 ratings)

Provider Groups

  • Saint Joseph Medical Group

Primary Contact

574-335-6700
Online Scheduling
Accepting New Patients
Online Scheduling
Provider Groups

  • Select Health Network

  • Saint Joseph Medical Group

Primary Contact
574-335-6700
Print Share

Services & Specialties

Areas of Specialization

  • Cardiology
  • Cardiovascular Disease
  • Clinical Cardiac Electrophysiology
  • Internal Medicine
  • Interventional Cardiology

Locations & Contact

Primary Location

Midwest Cardiology

611 E Douglas Rd
Ste 208
Mishawaka, IN 46545

View hours
Monday
7:30am - 5:00pm
Tuesday
7:30am - 5:00pm
Wednesday
7:30am - 5:00pm
Thursday
7:30am - 5:00pm
Friday
7:30am - 5:00pm
Saturday
Sunday
574-335-6700 View Details

Education & Certifications

Education

Education:
Northwestern University Feinberg School of Medicine (2005)

Residency:
University of Washington Medical Center (2008)

Residency:
University of Washington Medical Center (2008)

Fellowship:
University of Illinois at Chicago College of Medicine (2012)

Fellowship:
University of Illinois at Chicago College of Medicine (2012)

Fellowship:
Ohio State University Medical Center (2013)

Fellowship:
Ohio State University Medical Center (2013)

Board Certifications

Interventional Cardiology, Interventional Cardiology, American Board of Internal Medicine Subspecialty (2013)

Cardiology, Cardiovascular Disease, American Board of Internal Medicine Subspecialty (2012)

American Board of Internal Medicine

Provider Groups

Select Health Network

Saint Joseph 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 >

4.80 out of 5

(278 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.

69 Reviews

02/05/2026

Dr Zachary is very good I like seeing him

02/04/2026

Explained things very well

02/03/2026

He is always very clear on what we need to do, what to expect, and talks to you in a way you understand all the information. He also never rushes through my appointment

01/27/2026

All was great!

01/21/2026

He is an excellent doctor! I appreciate his ability to care for his patients!

01/14/2026

Thank you

01/13/2026

Everyone was friendly and professional. Answering our questions in a timely manner.

01/05/2026

Dr.Leshen always makes me feel confident I am getting the best care possible.

12/24/2025

He knows and remembers your medical profile and explains things in a clear and easy-to-understand manner. He is also a good listener, always ready to provide you with advice and recommendations to improve your medical condition.

12/18/2025

Really liked him. Very attentive and caring.

12/17/2025

Simply topnotch!

12/16/2025

Dr. Leshen is a physician whom I have total confidence in.

12/16/2025

Could have explained some of echo results

12/12/2025

Always a pleasure to Dr Leshen.

12/09/2025

I trust Dr Leshen’s advice and my treatment path.

12/09/2025

Please don't change I look forward to seeing them again

12/08/2025

This was a 1 year checkup. I was seen right on time for Electrocardiogram and by Dr. Leshen. My test results were clear so we discussed results and planned for a one year follow up.

12/04/2025

Wasting my time

12/03/2025

I have been seeing Dr. Leshen for quite a few years and he has always been very kind and professional.

12/03/2025

Got great feedback

11/19/2025

I trust Dr Leshen

11/19/2025

He saved my life

11/11/2025

reat physician. He knows his stuff and can explain with clarity

11/10/2025

He always makes sure I understand what is going on with myy health.

11/03/2025

He was very polite and honest with his reccomendations

10/23/2025

He doesn't just tell me what I WANT to hear, but tells me what he feels is necessary to calm my fears and explains WHY.

10/23/2025

Would recommend to friends and family if they were in need of care within his specialty

10/13/2025

Very good doctor and staff in

10/13/2025

Dr. Leshen is a great doctor and I trust him and his team with me life!

10/10/2025

good

10/08/2025

He’s great. Hope he doesn’t retire soon.

10/07/2025

Great. Couldn’t have a better doctor great job

10/06/2025

Dr. Leshen was very helpful and took time to explain everything.

10/03/2025

Very experienced physician-

09/29/2025

Very caring. Listens to concerns and answers questions

09/29/2025

Friendly and prompt

09/25/2025

All was good !

09/24/2025

Complete confidence in his skills and abilities

09/16/2025

Since we are moving will miss having his care

09/16/2025

Thank him for not talking down to me. I am knowledgeable about my test results and the future implications. I wanted to talk to a cardiologist in person, to ask questions and confirm treatment plan.

09/11/2025

Dr. Leshen was patient, kind and very through. I would highly recommend Dr. Leshen to anyone who is looking for a great cardiologist!

09/05/2025

Great demeanor

08/26/2025

First-rate doctor and human being

08/26/2025

He was concerned about my general health and effects of meds and general well-being

08/22/2025

He listened and explained everything to my satisfaction.

08/21/2025

He is the best. Always takes time to explain and help understand what he is telling you.

08/08/2025

Dr, Leshen is very good

08/08/2025

He gave me some ideas about my care and cardio ideas. Glad he will be my new cardiologist.

08/05/2025

I absolutely love everyone in this office.

07/30/2025

Professional courtesy and knowledge

07/28/2025

Dr Leshen was very personable and provided good feedback on all my test results. He answered my questions and explained things well.

07/23/2025

Very knowledgeable person Muchas gracias 🙏!

07/23/2025

100

07/23/2025

He’s the best

07/01/2025

I absolutely love Dr. Leshen communication and the way he pays attention to eye contact, feelings and emotions. He will break things down perfectly.

07/01/2025

I was interested in establishing physician patient relationship in the areaI have a cardiologist out of town where we used to live.Even though he could not assist with the immediate issues I was having he showed no empathy or understanding to help.me.validate the health care decisions I needed to make

06/27/2025

I only come in once a year to get checked. After 5 years I am still doing well from my surgery.

06/10/2025

I felt very comfortable and well taken care of

06/06/2025

Very diligent

06/04/2025

After the visit, a good follow up by ordering lab tests to check if any dosages of medications should be adjusted

06/04/2025

Looking forward to seeing Dr. Leshen in several weeks.

05/29/2025

Everything was great

05/28/2025

Dr. Leshen is terrific!

05/27/2025

Highly recommend Dr Leshen Cardiologist and Cardiac Center at St. Joseph’s Hospital

05/27/2025

Dr. Leshen is always friendly, has a great memory, and explains things well, if I ask.

05/21/2025

He listens to me

05/01/2025

Friendly and understanding

04/22/2025

Dr. Leshen is the best!!!!!

03/27/2025

Thankful that Dr. Leshen is my doctor
Show more
Online Scheduling 574-335-6700

Dismiss Modal

Close 

Where would you like to share?