Aaron C. Baltz, MD
Aaron C. Baltz, MD is a Gastroenterologist practice in Brookfield, WI. Rated 4.9 from 60 public reviews. Phone and website are listed.

Address
17000 W North Ave #105E, Brookfield, WI 53005
Brookfield, WI 53005
Phone
(414) 454-0600Website
Visit listed websiteListing updates
Request a correction or opt-outListed hours
- Monday
- 8AM–5PM
- Tuesday
- 8AM–5PM
- Wednesday
- 8AM–5PM
- Thursday
- 8AM–5PM
- Friday
- 8AM–5PM
- Saturday
- Closed
- Sunday
- Closed
Credentials, affiliations, and coverage
Sources
- google-maps-octoparse · checked Aug 27, 2026
Federal data is attributed to its source and does not imply CMS endorsement.
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Newest reviews
Karen Pfeiffer
Kind, respectful and informative. The entire staff from the nurses to the doctor explained the entire procedure and the timing as to what was going to happen. I had a couple of nurses but one had a perfect sense of humor! Wish I remembered his name.
Cynthia Priegel
No written review was provided.
Brenda Larrondo
Dr Baltz is AMAZING! Covers all the bases and make you feel very comfortable. Gives your results in a timely manner. Nurses are remarkable too, very nice.
Alfred Daniels
No written review was provided.
MLW
He's an excellent doctor who truly cares about his patients. I'm pleased to have him as my doctor.
John Kujawa
No written review was provided.
kris duchrow
Dr. Baltz and his team made a potentially uncomfortable procedure a very positive experience. Despite being very busy, the staff kept me informed about my place in line and made me feel valued throughout the process. Dr. Baltz and every staff member introduced themselves and thanked me for coming in, which made a lasting impression. I highly recommend GI Associates to anyone needing a colonoscopy. They guide you through every step and are happy to answer any questions along the way.
Jodi Stover
No written review was provided.
Bobby Thompson
Dr. Aaron Baltz, MD is a very caring doctor. He always welcome you with a beautiful smile. He's a great listener
Anthony Rappa
Every time I have seen Dr Baltz, it's a good experience. He explains everything so that I easily understand what is happening and what will happen during a procedure. Easy to talk to.




