Gastroenterologists Near Me in Milwaukee, WI

Gastroenterology • Milwaukee, WI • 1 site in Milwaukee, Wisconsin (Ascension Columbia St. Mary’s / Milwaukee area) locations

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About

Call clinic Visit website

Clinic Type

Gastroenterology

Address

788 N Jefferson St, Milwaukee, WI 53202

Phone

(414) 272-8950

Email

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

Gastroenterology
Digestive Health
Gastroenterology - Digestive Health

Team

Madeline L Finn — PA-C
Amanda N Klimek — PA
Maurice W Chung — MD
Cynthia A Koopmeiners — PA
Abdullah A Fayyad — MD
Chad J Stepke — MD
Eugene Kligman — MD
Srihari R Ramanujam — MD

Insurance & Payment

—

Languages Spoken

—

Social Media

Twitter Youtube Facebook Linkedin Instagram

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 Health

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026. Own this clinic? Claim or correct this listing.