Our Team

Our team at Michigan Bariatric Institute is a group of dedicated and compassionate professionals. We have gathered the finest bariatric surgeons and health professionals under one roof to provide the comprehensive care you deserve.

Bariatric medicine makes great advancements in effectiveness and safety each year. Our surgeons receive specialized training in state-of-the-art bariatric procedures and have a passionate interest in performing minimally invasive procedures, so you always get the most technically advanced treatment you need to achieve your weight loss goals.

We take a “whole body and mind” approach to bariatric weight loss, and we have created a well-rounded professional team at Michigan Bariatric Institute, (within St. Mary Mercy Hospital) which includes Program Directors, Program Managers, Physician Assistants, Dietitians, Patient Coordinators, Psychologists, Surgery Coordinators, and more. We understand that successful weight loss is about more than just cutting calories – It’s about how losing weight changes your life both physically and emotionally. Our team is dedicated to helping you adapt to the changes, challenges, obstacles and victories you will encounter before and after your weight loss journey.

Please take a moment to review the profiles of each of the staff members at Michigan Bariatric Institute, St. Mary Mercy Livonia.

Dr. Tallal Zeni Medical Director, Minimally Invasive and Bariatric Surgery, St. Mary Mercy Livonia

Dr. ZeniDr. Zeni joined the St. Mary Mercy Hospital's Medical Staff in 2005. He is board certified in general surgery and fellowship trained in advanced laparoscopic and bariatric surgery at Evanston Northwestern Healthcare, Evanston IL. Dr. Zeni has also conducted research in bariatric surgery and recently presented his research at two National and International Surgical Meetings. He performs surgery at St. Mary Mercy Hospital in Livonia.

Dr. Zeni received his undergraduate degree from Purdue University. He graduated from medical school at Indiana University School of Medicine where he also did his residency. He completed his fellowship at Evanston Northwestern Healthcare and is board certified by the American Board of Surgery. He is a professional member of SAGES, SLS, ACS and ASMBS.

Dr. Zeni is interested in minimally invasive/advanced laparoscopic surgery including:

  • Roux-en-Y Gastric Bypass
  • Sleeve Gastrectomy
  • Adjustable Gastric Banding
  • Hiatal Hernia Repair and Nissen Fundoplication
  • Gastric Resections
  • Splenectomy
  • Colectomy
  • Incisional Hernia Repairs
  • Inguinal Hernia Repairs
  • Cholecystectomy
  • Appendectomy
  • Nephrectomy

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Dr. Jacob Roberts Medical Director, Bariatric Surgery

Dr. Jacob Roberts, Advanced Laparoscopic General and Bariatric Surgeon, is a part of the St. Mary Mercy Medical Staff.  He is working with Tallal Zeni, MD at the Michigan Bariatric Institute and Advanced Laparoscopic Surgical Associates.  He is performing surgeries at St. Mary Mercy Hospital in Livonia.

Dr. Roberts received his undergraduate degree at Michigan State University. He then went to medical school at Michigan State University College of Osteopathic Medicine. His residency was at St. John Oakland Hospital and his fellowship was at Evanston Northwestern Healthcare. He is board certified by the American Board of Osteopathic Medicine.

Dr. Roberts is interested in minimally invasive/advanced laparoscopic surgery including:

  • Roux-en-Y Gastric Bypass
  • Sleeve Gastrectomy
  • Adjustable Gastric Banding
  • Cholecystectomy
  • Hiatal Hernia Repair and Nissen Fundoplication
  • Incisional and Inguinal Hernia Repair
  • Splenectomy
  • Gastric Resections
  • Colectomy
  • Appendectomy
  • Anti-Reflux Surgery
  • Benign & Malignant Breast Surgery

Professional Memberships

  • SAGES
  • ACOS
  • AOA
  • ASMBS

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Dr. Mark Jonker General and Bariatric Surgery, Michigan Bariatric Institute Brighton

Dr. Jonker received his medical education at the Medical College of Wisconsin in Milwaukee, Wisconsin and completed his general surgery residency at the University of Wisconsin Hospital and Clinics in Madison, Wisconsin. He completed fellowships in mucosal immunology and nutrition and minimally invasive surgery and bariatric surgery. Dr. Jonker is board certified by the American Board of Surgery.

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Dr. Eric Davies General and Bariatric Surgery, Michigan Bariatric Institute Brighton

Dr. Davies is a board certified in surgery by the American Board of Surgery and fellowship-trained in minimally invasive robotic and bariatric surgery from Sutter Health Alta Bates Summit Hospital in Oakland, California. He joined Michigan Bariatric Institute in September 2016, and is an IHA general surgeon. Dr. Davies received his medical degree from Creighton University School of Medicine in Omaha, Nebraska and completed a general surgery residency at St. Joseph Mercy Ann Arbor.

Dr. Davies specializes in minimally invasive and robotic surgery including:

  • Roux-en-Y Gastric Bypass
  • Sleeve Gastrectomy
  • Adjustable Gastric Banding
  • Cholecystectomy
  • Hiatal Hernia Repair
  • Paraesophageal Hernia Repair
  • Inguinal Hernia Repair
  • Incisional Hernia Repair
  • Umbilical Hernia Repair
  • Disease of the gallbladder, spleen, adrenals and appendix

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Paula Magid Program Director

Paula Magid has been MBI's Program Director from the beginning of the program, in 2005. She has an extensive background in Occupational Therapy/Rehabilitation Services, which she still practices in today. She began working in bariatrics in 2004 when she realized she found her passion. Paula is also a RNY Gastric Bypass post-operative patient and has lost 160lbs. She is very compassionate and understanding with the bariatric patients as they look to her as a role model. Her interest and knowledge in bariatric surgery, weight discrimination and prejudice led to co-authoring a book for weight loss surgery patients with Angela Van De Ven (Bickman) and Dr. Steven Baum entitled From the Inside Out: Resolving Obesity Through the New Science of Bariatrics.

Paula is a proud wife, mother of 2, and grandmother to 3 beautiful boys. She likes to spend her spare time with her family as much as possible. She loves to travel and then scrapbook the fond memories of all her trips.

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Jenny Kasprzyk, RD Program Manager

Jenny Kasprzyk graduated from Central Michigan University in 2000 where she obtained her Bachelor of Science degree in dietetics. She has been a part of the Michigan Bariatric Institute team since May 2008. She previously worked as a Registered Dietitian at Macomb County Health Department-WIC. Jenny is currently working at St. Mary Mercy of Livonia.

Jenny believes that obtaining and maintaining a healthy weight can be very difficult but improvement in quality of life is worth it! Having a healthy relationship with food, a good support system, regular exercise, and a positive attitude are keys to reaching one's goal. Believing in the goal is the best step towards achieving it.

In her free time, Jenny enjoys working as a dance instructor at a private dance studio where she teaches children of all ages.

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