Our team consists of advanced care providers who are board certified and AAHC accredited. We collectively work to create a coordinated experience for our patients seeking quality health care. Our care providers practice medicine in partnership with our clinics’ physicians to provide efficient, patient-centered care.
Our Center for Digestive Health team has expertise in a range of different specialties. Our specialties include colon cancer screening procedures as well as treatment for GERD, inflammatory bowel syndrome (IBS), inflammatory bowel disease (IBD), liver disease and pancreatic disease.
Amir Abadir, MD FRCPC
AMIR ABADIR, MD FRCPC is board certified by the American Board of Internal Medicine. He is also a Fellow of the Royal College of Physicians and Surgeons of Canada in Internal Medicine and Gastroenterology.
Anezi E. Bakken, MD MS
ANEZI E. BAKKEN, MD MS is Board certified in Internal Medicine and in Gastroenterology. Dr. Bakken completed her undergraduate and medical school studies at the University of Nigeria and had three years of further medical training at various hospitals in the United Kingdom. She then completed her Internal Medicine residency at Wayne State University.
Sante D. Bologna, MD FACP
SANTE D. BOLOGNA, MD FACP is American Board of Internal Medicine certified in Gastroenterology and Internal Medicine. He is the senior partner and was instrumental in forming the group in 1992. A graduate of Wayne State University, Dr. Bologna served as Chief Resident at Henry Ford Hospital, prior to completing his three-year GI fellowship there.
M. Emin Donat, MD FRCPC
M. EMIN DONAT, MD FRCPC is American Board of Internal Medicine certified in Gastroenterology and Internal Medicine. He is a Fellow of the Royal College of Physicians of Canada. Dr. Donat is a graduate of University of Western Ontario, Canada, where he also obtained his medical degree. Dr. Donat completed his residency and three-year Gastroenterology fellowship at the University of Ottawa, Canada, where he was Chief Resident, Division of Gastroenterology in 1997.
John R. Weber, MD
JOHN R. WEBER, MD is American Board of Internal Medicine certified in Gastroenterology and Internal Medicine. Dr. Weber joined the group in 1997 from the University of California, San Francisco (UCSF), where he was Assistant Professor of Gastroenterology.
Freeha Khan, MD
Freeha Khan, MD is a board-certified gastroenterologist at the Center for Digestive Health in Troy. Dr. Khan completed her fellowship with the University of Louisville after a research fellowship focused on Inflammatory Bowel Disease at Cleveland Clinic.
Partha S. Nandi, MD FACP
PARTHA S. NANDI, MD FACP is American Board of Internal Medicine certified in Gastroenterology and Internal Medicine. He performed his undergraduate studies at Ohio State University, where he graduated summa cum laude. Dr. Nandi obtained his medical degree at Wayne State University, where he graduated with distinction. He also completed his Internal Medicine residency at Wayne State University. His three-year Gastroenterology fellowship was completed at the University of Michigan. Dr. Nandi has a special interest in therapeutic endoscopy and endoscopic ultrasound.
Leonard G. Quallich III, MD
LEONARD G. QUALLICH III, MD is Board certified in Internal Medicine and board certified in Gastroenterology. He performed his undergraduate and medical school studies at Case Western Reserve University in Cleveland, Ohio. Dr. Quallich completed his Internal Medicine and Gastroenterology/Hepatology training at the University of Michigan.
Richard T. Wille, MD
RICHARD T. WILLE, MD is American Board of Internal Medicine certified in Gastroenterology and Internal Medicine. Dr. Wille completed his undergraduate studies at Wayne State University. He attended the University of Michigan for medical school, Internal Medicine residency and fellowship training in Gastroenterology/Hepatology. He also served as Chief Medical Resident in 1993.
Jack Tocco, DO
JACK TOCCO, DO is board certified in Internal Medicine and Gastroenterology. He completed his undergraduate studies at Michigan State University. Dr. Tocco obtained his medical degree from Pikeville School of Osteopathic Medicine in Kentucky.
Lauren Kakish, MSN, NP-C
LAUREN KAKISH, NP-C is board certified as an Adult-Gerontology Nurse Practitioner by the American Academy of Nurse Practitioners Certification Program. She completed her Bachelor of Science in Nursing at Madonna University and then earned her Master of Science in Nursing at Oakland University. She is a member of the American Association of Nurse Practitioners.
Cristie Sarah, MSN, RN, NP-C
CRISTIE SARAH is a board-certified Adult-Gerontology Nurse Practitioner. She has devoted her practice to Gastroenterology with a special interest in Hepatobiliary and Irritable Bowel Disease. Obtained a Masters of Science in Nursing at Oakland University in 2016 and a Bachelors of Science in Nursing at Oakland University in 2008. She has 8 years of nursing experience in surgical intensive care with pre and post-liver transplantation at Royal Oak Beaumont. Member of American Academy of Nurse practitioners and Michigan Council of Nurse Practitioners. She enjoys spending her free time with family and her two children.
Noelle Maude, MSN, RN, FNP-C
NOELLE MAUDE is a board-certified Family Nurse Practitioner with 19 years of nursing experience. She obtained her Bachelor of Science degree in Nursing from Oakland University in 1999. She graduated with a Master of Science degree in Family Nurse Practitioner from the University of Detroit Mercy in 2017. Her experience as a nurse includes medical-surgical nursing, gastroenterology, emergency medicine, and 15 years of critical care nursing in the SICU. She is a member of the Michigan Council of Nurse Practitioners and Sigma Theta Tau. She is a wife and mother of two children. Both of children have Celiac disease, and she has acquired a strong knowledge base about dietary management and resources for patients with Celiac disease. Noelle is very passionate about health care maintenance, illness prevention, and overall wellness through medications and lifestyle changes. She spends her free time camping, kayaking, watching baseball, reading, and volunteering at a local animal shelter.
Jenna Zech, PA-C
JENNA ZECH, PA-C Jenna Zech is a Nationally Certified Physician Assistant. She began her studies at Oakland University where she graduated Magna Cum Laude with a Bachelor of Science degree in Health Sciences. She then continued her education at Wayne State University and graduated with a Master of Science degree in Physician Assistant Studies where she acquired diverse patient care experience. She is devoted to the field of Gastroenterology with a special interest in Inflammatory Bowel Disease.
Paula Spinks, PA-C
Antonella Hart, BSN, MSN, ANP-BC
Nicole Najor MSN, RN, FNP-C
Dr. Yusuf is originally from Nigeria where he obtained a Bachelor of Medicine from the University of Ilorin, Nigeria. He then came to the United States to do his Internship and Residency at Morehouse School of Medicine in Atlanta, Georgia. Dr. Yusuf then went on to New York to complete his Fellowship in Gastroenterology at State University of New York. He was a Medical Officer at Mutare General Hospital in Zimbabwe as well as an Assistant Clinical Instructor in New York. He is board certified in Gastroenterology and Internal Medicine. He joined Digestive Health Institute in December of 2000.
Victoria Pruss MSN, APRN, FNP-BC
Dr. Coleski studied medicine at the University Sts Cyril and Methoius Medical school in Macedonia in 2005. After completing his residency in internal medicine at the Interfaith Medical Center in Brooklyn, New York in 2011, he completed his gastroenterology training at the University of Michigan Health System in 2014. Soon after we welcomed him to the Digestive Health Institute team in 2014. He is board-certified in Internal Medicine and Gastroenterology.
What Our Patients Are Saying
I’ve been a patient of Dr. Weber for almost a decade. My husband for more than & it was he who recommended Dr. Weber. He’s knowledgeable & well experienced in his field. Plus he’s an all around kind & nice guy. And you’d like how the office & tech staff are trained to run the operation of this practice. Efficient, patient and helpful! I’d feel very comfortable recommending this practice.
I had a great time. Everyone was very friendly and professional. One nurse said I had nice eyes, which really helped my self esteem. Dr. Willie was fantastic. His concern about having magenta ink for the printer really shows what a caring man he is. The pictures turned out great. I framed them and hung them up on my wall at home. But, seriously the experience was pleasant. Thank you to everyone involved.
Lord knows having a colonoscopy is zero fun. The prep nearly did me in. But after arriving at suite 270 every single person was pleasant and efficient. The attention to cleanliness in the office is very apparent and appreciated. Every employee introduced themselves by name, apologized for an IV that took two tries and made sure I was as comfortable as can be before I was ready to leave. However, I’m going to enjoy every minute of the five years before I need to return!
I have been here several times and have always been treated great. The receptionist are so kind and the nurses are wonderful so is the anesthesia person are so kind and answers any concerns you might have. My Dr Bologna is awesome. This is the place to go if you need endoscopy or colonoscopy. Thank all the staff for being so kind
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Online scheduling is now available for clinic appointments.
Note that procedure appointments cannot be scheduled online.