Gastroenterology (GI) care in the Lakeshore region

Compassionate care. Comprehensive solutions.

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Your journey to digestive wellness starts here

At Prevea gastroenterology (GI), we understand that digestive health concerns are more than a medical issue—it’s about reclaiming your quality of life. Our team of specialized gastroenterologists and health care professionals provides dedicated, personalized and comprehensive care for all your digestive health needs.

A map of Wisconsin with blue pins where Prevea Gastroenterology locations are

Lakeshore GI care locations

Meet our gastroenterology team

Adebisi Alimi
Adebisi Alimi, MD

Gastroenterologist

Marla Wolfert
Marla Wolfert, MD

Gastroenterologist

Kristine Nigrelli
Kristine Nigrelli, APNP, AGPCNP-BC

Nurse Practitioner, Gastroenterology

Melissa Virant
Melissa Virant, APNP, FNP-BC

Nurse Practitioner, Gastroenterology

When should I schedule an appointment for digestive health concerns?

You should consider scheduling an appointment if you experience any of the following symptoms or conditions: 

  • Persistent digestive issues 
    • Chronic diarrhea or constipation lasting more than a few weeks 
    • Unexplained abdominal pain or recurring stomach cramps 
    • Frequent bloating or excessive gas that interferes with daily life 
  • Digestive tract bleeding 
    • Blood in your stool 
    • Black, tarry stools 
    • Persistent rectal bleeding 
  • Screening and preventive care 
    • You're over 45 and need a routine colonoscopy screening 
    • Family history of colon cancer or inflammatory bowel diseases 
    • Personal history of gastrointestinal disorders 
  • Specific digestive conditions 
    • Suspected inflammatory bowel disease (Crohn's disease or ulcerative colitis) 
    • Persistent acid reflux or GERD that doesn't respond to over-the-counter medications 
    • Unexplained weight loss related to digestive problems 
  • Chronic symptoms indicating potential serious conditions 
    • Persistent nausea or vomiting 
    • Difficulty swallowing 
    • Severe or persistent heartburn 
    • Unintended weight loss 

If you're experiencing any of these symptoms or have concerns about your digestive health, it's best to consult with your primary care physician first, who can then refer you to a gastroenterologist if necessary.

Why choose Prevea digestive health?

Our heartburn treatment center offers comprehensive, state-of-the-art testing, education, and appropriate and effective treatment options for lasting relief from heartburn.
We prioritize your comfort in a compassionate care environment, offering minimal wait times for appointments and effective communication about diagnoses and treatment options.
Each patient receives a customized treatment plan tailored to their unique health profile and personal needs. You can be assured we will work with you to develop an effective treatment plan.
Our team performs thousands of minimally invasive endoscopic procedures annually, including colonoscopy. Procedures are performed in the hospital but allow you to return home at the same time. Click here for a full list of digestive health procedures performed at the hospital.
Our board-certified gastroenterologists have dedicated their careers to treating people with digestive health disorders. Our team uses state-of-the-art diagnostic technologies to identify the root causes of your digestive concerns. From advanced endoscopic procedures to comprehensive testing, we have the skill and the technology to diagnose digestive conditions.

Learn more about Prevea Gastroenterology and a comprehensive list of services we provide.

Learn more