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Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension

4.9 out of 5 · 1,311 reviews

Gastroenterology • Brookfield, WI

About

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Clinic Type

Gastroenterology

Address

17000 W North Ave Ste 105e, Brookfield, WI 53005

Phone

414-454-0600

Email

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Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://healthcare.ascension.org/find-care/specialty/gastroenterologists/brookfield--wisconsin

Emergency Care

If you are experiencing a life-threatening emergency, call 911 or go directly to the ER.

Services Offered

  • Gastroenterology - Digestive Health

Team

  • Nathaniel T Jest, DO — Gastroenterology - Digestive Health
  • Lauryn M Firkus, APNP — Gastroenterology - Digestive Health
  • Kristin L Zimmet, PA-C — Gastroenterology - Digestive Health
  • Katie J Balderas, PA-C — Gastroenterology - Digestive Health
  • Jacob C Laine, MD — Gastroenterology - Digestive Health
  • Erica A Samuel, MD — Gastroenterology - Digestive Health
  • Aaron C Baltz, MD — Gastroenterology - Digestive Health
  • Alison M Baierl, PA-C — Gastroenterology - Digestive Health

Insurance & Payment

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Languages Spoken

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Social Media

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Photos

Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension, gastroenterology clinic in Brookfield, WI — photo 1 of 8Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension, gastroenterology clinic in Brookfield, WI — photo 2 of 8Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension, gastroenterology clinic in Brookfield, WI — photo 3 of 8Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension, gastroenterology clinic in Brookfield, WI — photo 4 of 8Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension, gastroenterology clinic in Brookfield, WI — photo 5 of 8Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension, gastroenterology clinic in Brookfield, WI — photo 6 of 8Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension, gastroenterology clinic in Brookfield, WI — photo 7 of 8Gastroenterologists Near Me in Brookfield, Wisconsin | Ascension, gastroenterology clinic in Brookfield, WI — photo 8 of 8

What Patients Say

Overall sentiment across review platforms: positive

  • Birdeye/Google: 4.9 out of 5 stars (1,290 reviews)
  • Vitals: 4.7 out of 5 stars (18 reviews)
  • WebMD: 4.5 out of 5 stars (3 ratings)

Patients praise

  • Courteous and friendly staff
  • Effective communication of conditions and treatments
  • Comfortable bedside manner
  • Efficient check-in processes
  • High patient recommendation rates

Common complaints

  • Occasional administrative or scheduling miscommunication

"Dr. Samuel and her staff at G.I. Associates are awesome they made me feel very comfortable."

— Vitals Review

"Dr. Velez is top notch. He is thorough, efficient and has excellent bedside manner. He also stays up to date on the latest treatment options."

— LocalityBiz Review

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

In the News

Information sourced from the clinic's website as of July 11, 2026.

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