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Clinic Type

Gastroenterology

Address

Phone

Email

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

Insurance & Payment

Languages Spoken

What Patients Say

Overall sentiment across review platforms: mixed

  • Healthgrades (Dr. Istvan Danko): 4.3 out of 5 stars (based on 6 reviews) (6)

Patients praise

  • Physicians noted for being knowledgeable and listening well
  • Friendly nursing staff reported in some experiences
  • Patients felt involved in their treatment plans

Common complaints

  • Some reports of feeling dismissed by providers
  • Complaints regarding administrative or check-in desk service
  • Difficulty scheduling appointments

"Dr. Wong in Pediatric GI is just awesome. He is very knowledgeable and always has different approaches to your issues. He also makes you feel involved in your own treatment."

LocalityBiz review

"Refuses to listen to concerns and reasons after long awaited referral. Dismissive and unprofessional."

Healthgrades review of Dr. Istvan Danko

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.

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Middleton, WI·Gastroenterology

Fox Valley Surgical Associates (FVSS) in Wisconsin offers comprehensive gastroenterology and related surgical care. Key points: - Specialties include general surgery, colorectal, endocrine, oncologic, thoracic, and vascular procedures, with a strong focus on gastrointestinal health. - Endoscopy services include GI endoscopy, ERCP, and EUS, plus interventional endoscopy. - High-risk breast clinic and imaging capabilities are available, alongside hepatobiliary, liver, and pancreas surgery. - Robotic-assisted surgery and laparoscopy are part of their advanced treatment options. - Practice emphasizes patient-centered care, with ongoing updates to technology and services (e.g., new providers like Shannon Huettl, PA-C). - Accepts a broad range of conditions related to digestive health, aiming to provide diagnosis, treatment, and minimally invasive options in one specialty network. Bottom line: FVSS provides specialized gastroenterology care within a broader surgical practice, offering endoscopy (including ERCP/EUS), minimally invasive and robotic options, and integrated GI-focused services in Middleton, WI.

VerifiedOnline bookingSince 1970
Middleton, WI·Gastroenterology

The University of Wisconsin Department of Medicine site (medicine.wisc.edu) provides overview and leadership for UW–Madison’s internal medicine divisions, including Gastroenterology and Hepatology. It highlights key personnel (e.g., Division Chief for the division) and recent updates such as Megan Lutz, MD, being the first in Wisconsin certified to offer intestinal ultrasound (IUS) for IBD patients (as of 2026-06-01). The page appears to be a general departmental hub rather than a dedicated Middleton-based gastroenterology program. If you’re specifically seeking the UW Division of Gastroenterology and Hepatology in Middleton, this site points to UW–Madison’s main division but does not provide Middleton-specific contact details or a Middleton clinic page. For Middleton-affiliated GI/Hepatology services, you may want to check UW Health in Middleton or search for a Middleton clinic page within UW–Madison’s GI division. Key detail: first Wisconsin IUS certification noninvasive option for inflammatorily bowel disease.

VerifiedOnline bookingSince 1924

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