Public provider listing

Utah Gastroenterology: Old Mill - SLC

4.5(369)

Utah Gastroenterology: Old Mill - SLC is a Gastroenterologist practice in Salt Lake City, UT. Rated 4.5 from 369 public reviews. Phone and website are listed.

Address

6360 S 3000 E STE 310, Salt Lake City, UT 84121
Salt Lake City, UT 84121

Public hours

Listed hours

As published
Monday
8AM–5PM
Tuesday
8AM–5PM
Wednesday
8AM–5PM
Thursday
8AM–5PM
Friday
8AM–5PM
Saturday
Closed
Sunday
Closed
Verified listing details

Credentials, affiliations, and coverage

Checked Aug 27, 2026

Sources

Federal data is attributed to its source and does not imply CMS endorsement.

Public media

Newest photos

Up to 10
Utah Gastroenterology: Old Mill - SLC listing photo 1
Public reviews

Newest reviews

Up to 10

Mark Gleue

5.0

I could not say enough of the incredible caring and service at Utah Gastroenterology. Everyone, from the front desk to Heydan, the nurse and Andrew who handled the anesthesia to Dr. Fox, these people are amazing!

Ashley Marlow

1.0

Charlie fox was definitely unprofessional and made me feel silly for coming to talk about my current gastrointestinal issues. He was not helpful and made me feel uncomfortable that I was too young for these kind of issues

Debbie Retz-Hoar

5.0

I've been going to the Utah Gastroenterology Old Mill location for years. My Doctor Dr. Harmston and his PA Abby, are very knowledgeable in their chosen fields. I've had several Upper GI procedures and Colonoscopies over the years. My doctor helped to diagnose my Colon cancer. It was removed without antibiotics, Chemo, etc. because I received my colonoscopies on a regular basis!! There is now testing for different types of cancer!!!! Please, see your doctor or other health professional for your best health and happy life. After I had my Colon cancer removed, I started having bad bloating and foul smelling gas. Gastroenterology Old Mill did easy oral testing on me. I had bad bacteria in my small intestine, where it was sewn to my large intestine. That was bad news! I was started on an antibiotic for my gut. Much less gas over all and when I do have occasional gas; it no longer is foul smelling! Thank you, Debbie Retz-Hoar

Katie Foster

2.0

No written review was provided.

Harriett Carlson

5.0

I feel Dr Frech is a great doctor he explains every detail of your condition and answers your concerns.

Mark Ritchie

5.0

Your service was fast, friendly and cordial in every aspect of my visit. Thank you !!! Mark R

Pat Naisbitt

5.0

No written review was provided.

C Pedersen

5.0

Abby and staff are great! Was able to make a fast appointment. Very helpful in my time of need!

Amber Lewis

1.0

This experience was honestly a joke. The only good part of the experience was the nice lady at the front desk. I waited 40 minutes to be called back and who knows how much longer I would’ve had to wait if she didn’t go back and check cause they didn’t know which MA it was working with the doctor. Then the MA said my name wrong, put in all of my medications wrong, and even my name was put in wrong to the system. When the doctor, Dr Gilroy, came in he said I have celiac and said not everyone who has celiac is skinny, without even asking me about what’s been going on and then after I explained to him he said oh maybe not. Then felt my abdomen and told me I had a fatty liver even though that’s not even why I came and have had no indication of any liver issues. Then told me to go on a Mediterranean diet and to lose weight cause he used to be a liver doctor and went on talking about that. He couldn’t even work the computer correctly and didn’t give me any information on where to go get my lab work done.

john carter

5.0

Best GI clinic in Utah

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