Gastroenterologists Near Me in Milwaukee, WI
Gastroenterology • Milwaukee, WI • 1 site in Milwaukee, Wisconsin (Ascension Columbia St. Mary’s / Milwaukee area) locations
Clinic Type
Gastroenterology
Address
788 N Jefferson St, Milwaukee, WI 53202
Phone
(414) 272-8950; (414) 319-3277; (414) 226-4020; (262) 243-2500
careers@ascension.org
Opening Hours
Not published — contact the clinic to confirm hours.
Website
https://healthcare.ascension.org/find-care/specialty/gastroenterologists/milwaukee--wisconsin
Emergency Care
If you are experiencing a life-threatening emergency, call 911 or go directly to the ER.
Services Offered
Team
Insurance & Payment
—
Languages Spoken
—
Social Media
Photos







What Patients Say
Overall sentiment across review platforms: positive
- Healthgrades (Dr. Aaron Baltz): 4.9/5 (107 reviews)
- Healthgrades (Dr. Brian Moloney): 4.9/5 (58 reviews)
- Froedtert/MCW (Dr. Daniel Stein): 4.8/5 (66 reviews)
- Birdeye (Dr. Ricardo Li): 5.0/5 (171 reviews)
- Vitals (Dr. Mario Velez): 5.0/5 ((Multiple reviews))
- Vitals (Dr. David Staff): 4.3/5 (9 reviews)
Patients praise
- excellent bedside manner and kindness
- thorough explanations of procedures and findings in layman terms
- staff professionalism and supportiveness
- active listening and feeling heard by the provider
- high satisfaction with procedural care and outcomes
Common complaints
- concerns regarding short visit times and perceived lack of thoroughness
- perceived dismissiveness or ego affecting communication
- frustration with conservative treatment plans when surgical or alternative options are desired
"Dr. Baltz is amazing! He took the time to listen to me before the exam and to explain what was going to be done... Excellent bedside manner."
— Healthgrades"Asks very few questions. Keeps visits ridiculously short. Doesn't allow time for follow up questions. Barely takes patient concerns into consideration."
— Vitals"Dr. Stein is always professional and helpful... The plan of care was explained to me carefully and I was very satisfied with the visit."
— Froedtert HealthSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- William Davis, DO | Froedtert & the Medical College of Wisconsin — Sep 9, 2025
- Harrison Mooers, MD | Medical College of Wisconsin — Nov 1, 2025
- Dr. Ricardo A. Li, MD - Gastroenterologist in Milwaukee, WI — May 14, 2026
- Dr. Hanna Bayisa, MD – Milwaukee, WI | Gastroenterology — Nov 11, 2025
Information sourced from the clinic's website as of July 11, 2026.
More gastroenterology clinics in Milwaukee
GI Associates is a large, privately held gastroenterology practice based in Milwaukee, Wisconsin, and the largest GI group in Wisconsin. It employs about 73 staff and 29 gastroenterologists (including pediatric subspecialists and a transplant hepatologist) who provide digestive health care for patients of all ages. The practice emphasizes same-day appointments, convenient locations in southeast Wisconsin (Milwaukee metro area), patient resources, a patient portal, billing options, research opportunities, and education. Key executives include Nalini Guda (President) and others. Offices are located in Wauwatosa, Brookfield, and Milwaukee, with HQ in Milwaukee. For a physician-specific search, Erica Samuel, MD, is not listed on this page. If you’re seeking a gastroenterologist named Erica Samuel, MD, Milwaukee-based providers at GI Associates may require direct contact or a provider directory confirmation.
Comparing your options?
See other gastroenterology clinics in Milwaukee, or search the full directory by insurance, ratings, and more.

