Our Providers

Dr. Krasnick is a Detroit-area native, who joined Oakland Colon and Rectal after completing Colorectal Fellowship in 2023 at The Ohio State University. He has interests in minimally invasive surgery, colon cancer screening and surveillance and treatments of anorectal disorders.

Dr. Wasvary is a board-certified colon and rectal surgeon with over 20 years experience. He treats a variety of benign and malignant disorders, and enjoys employing minimally invasive techniques. He is an Associate Professor of Surgery at Oakland University William Beaumont School of Medicine. He also serves as the Chief of Colon and Rectal Surgery at Corewell Health East in Royal Oak, and is the Director of the Royal Oak Corewell Health Multidisciplinary Colorectal Tumor Clinic.

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Dr. Shellnut is board-certified in both General Surgery and Colon and Rectal Surgery. He specializes in Robotic Colon and Rectal Surgery as well as endoscopic procedures for screening and surveillance of colorectal cancers. Dr. Shellnut also serves as the Associate Director of the Endoscopic Unit at Corewell health, and is an Assistant Professor of Surgery at the Oakland University William Beaumont School of Medicine.

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Dr. Ziegler is a board-certified general and colon and rectal surgeon, who specializes in robotic and laparoscopic surgery, as well as screening and surveillance colonoscopies. Dr. Ziegler commonly treats colorectal cancer, diverticulitis, inflammatory bowel disease and anorectal disorders including hemorrhoids, fissures, abscesses, and fistulas. In addition, he serves as the program director for the Corewell Health Colon and Rectal Fellowship training program.

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Dr. Peeples is a board-certified general and colon and rectal surgeon, who joined OCRA in 2016. She specializes in robotic and laparoscopic surgery, as well as endoscopic procedures for screening and surveillance of colon and rectal cancers. Her clinical interests include pelvic floor dysfunction (fecal incontinence procedures), benign anorectal problems and screening and surveillance techniques for anal cancers. In addition, she is an Assistant Professor of Surgery for the Oakland University William Beaumont Medical School.

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Dr. Bauman is a board certified colon and rectal surgeon who joined Oakland Colon and Rectal after completing Colorectal Fellowship at Beaumont Health in 2020. He currently specializes in laparoscopic and robotic minimally invasive colon surgery, and treatments of colon and rectal cancers. Like his partners, he offers colon cancer screening and surveillance colonoscopies.

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Ginger has been the backbone of our practice for over 10 years as our dedicated office manager. Incredibly hardworking and highly organized, she keeps daily operations running smoothly so our physicians can focus on care and our patients feel supported. Her leadership and attention to detail help everything flow seamlessly throughout our office.

Renee is a Family Nurse Practitioner, board certified by the American Academy of Nurse Practitioners and licensed by the state of Michigan. She received her Bachelor of Science degree in Nursing from Oakland University and obtained her Master of Science degree in Family Nurse Practitioner from Purdue University Global, graduating with honors. Renee has intensive, hands-on clinical training in acute, pediatric, women's health and primary care. With a strong foundation in clinical practice and a passion for holistic healthcare, Renee strives to make a positive impact on the lives of her patients.