Dr. Marc I. Unterman, MD | Loganville, GA | Cardiovascular Disease

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Marc Unterman specializes in cardiovascular disease and interventional cardiology, bringing nearly five decades of medical expertise to his practice. He earned his medical degree from Emory University School of Medicine and completed his internship and residency at Grady Health System, followed by a fellowship at University of Cincinnati Hospital in 1982. With 49 years of experience treating heart conditions, Dr. Unterman provides comprehensive cardiac care. He speaks English with his patients.

Dr. Unterman practices at Northside Hospital Gwinnett and sees patients at locations in Loganville and Monroe, Georgia. He focuses on treating high blood pressure conditions, including hypertensive emergencies and pediatric hypertension cases. His procedural expertise includes performing electrocardiograms to monitor heart rhythms and specialized echocardiography techniques to evaluate heart function. Patients rate Dr. Unterman 4.5 out of 5 stars for his care.

AI-generated from data on this provider profile.

accepting new patients
4.5

21 Ratings
49 years of experience
2 insurance plans accepted
speaks English
University of Cincinnati Hospital
5 written reviews
2 specialties
19 areas of expertise
3 board certifications
1 hospital affiliation
2 office locations
Male

21 ratings & reviews

Sort:

Showing 1 to 5 of 5 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I had a heart attack and was told I had 100 Blockage in my LAD. First I was told there was nothing they could do because of the location and they could not see where the blockage ended. I went through massive testing and was told they had good news and I was to have open heart and would be transported to St. Joseph......UGH Two days before open heart Dr. Unterman went beyond what most would do and went back in to see If he could see a way to break through the blockage. After several long hours of hard work HE DID! My Angel!. Eight (8) yrs later under his care, I am doing fantastic! Thank you Dr. Unterman! I will always be grateful to you.

October 18th, 2019

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

My first visit with Dr Unterman, I was truly impressed with his knowledge and professional demeanor.

August 13th, 2018

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I trust him completely.

January 18th, 2017

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Unterman is the best. He always spends enough time with me to discuss all of my concerns and answer all of my questions. He is particularly good at explaining all of the conflicting information we get from the media regarding heart disease and treatment.

March 12th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I had a heart attack and was told I had 100 Blockage in my LAD. First I was told there was nothing they could do because of the location and they could not see where the blockage ended. I went through massive testing and was told they had good news and I was to have open heart. After two hospitals another surgeon came in and told me that Dr. Unterman (5th Surgeon) looked at my test and wanted to do the same cath that was done on Monday because he thought he saw something on the test. Well I was taken to the third hospital right into the Cath Prep Room and taken in the surgery room. There I heard him say "I love it when my hunches are right! I knew that this was good news. Dr. Unterman told me he was able to break through the blockage and put a stent in and I was not going to have to have open heart surgery. I told him he was my Angel and cried. I cannot tell you the care I receive from Dr. Unterman and the gratitude I will always have for him. He is such a good and… caring surgeon that I trust him with my life. He is the one who took the chance where no one would!!!

April 23rd, 2013

Piedmont Heart of Loganville

3435 Highway 81 Ste 200Loganville, GA 30052

Tel: (770) 736-6300

Mon8:30 am - 5:00 pm

Tue8:30 am - 5:00 pm

Wed8:30 am - 5:00 pm

Thu8:30 am - 5:00 pm

Fri8:30 am - 12:00 pm

SatClosed

SunClosed

Piedmont Heart of Walton

2151 W Spring St Ste B220Monroe, GA 30655

Tel: (770) 267-1895

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed


Dr. Marc I Unterman, MD	Dr. Raghav Sharma, MD	Melanie Lakish Tyler Payton	Jolly Parayil
Cardiovascular Disease	Cardiovascular Disease	Nurse Practitioner	Nurse Practitioner
Accepts New Patients	Accepts New Patients
4.5 (21 Ratings)	5 (2 Ratings)	0 (0 Ratings)	0 (0 Ratings)
49 Years of Experience	16 Years of Experience
Virtual Visit Available	Virtual Visit Available	No Virtual Visit Option	No Virtual Visit Option
Speaks English	Speaks English, Hindi
Loganville , GA	Winter Park , FL	Snellville , GA	Lawrenceville , GA
Med School: Emory University School of Medicine	Med School: New York Medical College
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare
BCBS
Medicare

Acute Coronary Syndrome (ACS)
Angiography
Angioplasty
Arrhythmia
Atherectomy
Atherosclerosis
Blood Clot
Coronary Artery Disease (CAD)
Heart Attack
Heart Block
Heart Diseases
Heart Failure
High Cholesterol
High Cholesterol (Hypercholesterolemia)
Hypertension
Interventional Cardiology
Lipid Disorders
Stroke
Unstable Angina

MEDICAL LICENSE

Medical Doctor, Georgia, 2027, Active

EDUCATION & TRAINING

Fellowship

University of Cincinnati Hospital1982

Residency

Grady Health System1980

Internship

Grady Health System1978

Medical School

Emory University School of MedicineGraduated in 1977

Dr. Michael Manuel Lopez, MD
Pediatrics
15 Years Exp | Miami, FL
(6)
Dr. Serge Geffrard, MD
Pediatrics
28 Years Exp | Smyrna, GA
(17)
Dr. Jayaraman Venkatesan, MD
Interventional Cardiology
25 Years Exp | Conyers, GA
(3)
Dr. Michael Craig Mcdaniel, MD
Interventional Cardiology
24 Years Exp | DECATUR, GA
(0)
Dr. Richard Allen Schieber, MD
Pediatrics
| Stone Mountain, GA
(0)
Babs Rene Labrador
Nurse Practitioner
| Conyers, GA
(0)
Dr. Hunter Callahan Wilson, MD
Pediatrics
12 Years Exp | Atlanta, GA
(0)
Patricia Necole Huelsbeck
Nurse Practitioner
| Lawrenceville, GA
(0)
Christina Elizabeth Ross
Nurse Practitioner
| Greensboro, GA
(0)
Kelly Lynn Sisson
Nurse Practitioner
| Lawrenceville, GA
(0)

Is Dr. Marc Unterman accepting new patients?: Dr. Marc Unterman is accepting new patients on Vitals. View Dr. Marc Unterman's profile on Vitals to make an appointment.
Does Dr. Marc Unterman accept my insurance?: You can see the insurance plans that Dr. Marc Unterman accepts on their Vitals profile.
How can I make an appointment with Dr. Marc Unterman?: You can find contact information for Dr. Marc Unterman here on Vitals.
Does Dr. Marc Unterman accept virtual/telehealth appointments?: Yes, Dr. Marc Unterman accepts virtual/telehealth appointments. Click the virtual visit button on their Vitals profile.
Which hospitals is Dr. Marc Unterman affiliated with?: Dr. Marc Unterman is affiliated with Northside Hospital Gwinnett.

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.