Meet the Staff

Bariatric Surgeon: Dr. Jeffrey Rosen is the lead surgeon for LWB. He is board-certified in general surgery and has been in practice for over 13 years. Dr. Rosen has taught Bariatric surgery to many surgeons around the country. He has been involved in almost 1000 weight loss surgeries. He has also served as Co-medical director in the Trauma department at Good Samaritan Hospital in the past. His dedication to advancing knowledge of surgical techniques and technology are reflected in his active memberships in various medical associations including American Society of Bariatric Surgery, the Society for Critical Care Medicine, the Society for American Gastrointestinal Endoscopic Surgeons, and the Chicago Medical Society. In the academic arena, Dr. Rosen is an Affiliate Clinical Instructor at the Midwestern University College of Osteopathic Medicine, and his research has been published in various medical publications, including the Journal of Trauma and Surgical Endoscopy. Dr. Rosen received his medical degree from the University of Illinois at Chicago, where he also served his residency. 

   Dr. Allen Mikhail

Bariatric Surgeon:  Dr. Allen Mikhail is a surgeon at LifeWeigh Bariatrics with special interests in Laparoscopic Roux-en Y Gastric Bypass, Adjustable Gastric Banding, Sleeve Gastrectomy, Gastrointestinal Surgery and Endoscopic procedures.  His specialized training in Advanced Laparoscopic and Bariatric Surgery at the Cleveland Clinic shows his dedication to minimally invasive surgery and committed interest in the treatment of obesity.  He is board-certified in surgery by the American Board of Surgery.  He has been the investigator on many research grants and has published numerous papers, abstracts and book chapters related to nutrition, laparoscopic gastrointestinal and bariatric surgery.  Memberships in professional and scientific societies include the American College of Surgeons, Society of Laparoendoscopic Surgeons, American Society for Metabolic and Bariatric Surgery (ASMBS) and Society of American Gastrointestinal and Endoscopic Surgeons (SAGES).  

Practice Manager: Gail R. Rosen, RN, BSN, MBA, MS is our practice manager and has extensive clinical experience in the Intensive Care Unit, Cardiac Care Units at several hospitals in Indiana and Illinois. Gail has received a Master of Science and Master in Business Administration from University of St Francis. grosen@lifeweigh.com

Office Manager: PJ Stough joined the LifeWeigh team in October of 2009. PJ had gastric bypass surgery July 21, 1999 and lost 162 pounds. Inspired by the way surgery changed/saved her life, she began working with bariatric patients on an informal basis. In 2002, she joined The Kane Center as their Bariatric Coordinator where she worked with patients, conducted informational seminars and ran support groups. PJ has also worked as a manager of a weight loss program in Arlington Heights and started a Lap-Band program at a surgery center in Chicago. She is a Certified Support Group Leader and a member of the American Society for Metabolic and Bariatric Surgery (ASMBS) and the Obesity Action Coalition (OAC). For the past five years, she has also served as the Chairperson for the Northern Illinois Walk from Obesity. pstough@lifeweigh.com

Administrative Assistant and Insurance Specialist: Barbie Bartolomei has been working for us in an administrative capacity for over 6 years including the functions of marketing, front office work and patient advocate. Barbie also assists patients in the insurance process. bbartolomei@lifeweigh.com

Dietitian: Sherrill Johnson, RD, LDN, CPT has over fourteen years of experience educating and counseling patients in the area of weight management. Sherrill did her undergraduate degree in Food and Nutrition at the University of Illinois at Champaign-Urbana and completed her dietetic internship at Hines VA Hospital. Sherrill is also passionate about fitness and has recently earned her personal training certificate. sjohnson@lifeweigh.com

Dietitian: Dana M. White, MS, RD, LDN is a registered and licensed dietitian who has a passion for nutrition, exercise and people. She has clinical experience in weight management and bariatric surgery. She enjoys giving presentations and developing new ways to make nutrition easy to understand and implement. Dana graduated from Purdue University and completed her dietetic internship at the University of Houston. Dana recently earned her Masters Degree in Nutrition and Wellness from Benedictine University. She has also attained a certificate of training in Adult Weight Management through the American Dietetic Association. dpetersen@lifeweigh.com

Exercise Physiologist: Joey Bonavota, MS has been working in the field of bariatrics since 2002. He is an alumni of Eastern Illinois University, where he received both his Bachelor and Masters degree in the field of exercise science. He has also gained practical experience in the field of cardiac rehabilitation. Joey brings a unique prospective into the field of exercise science through these previous endeavors. He has a restless schedule but he wouldn’t want it any other way.  jbonavota@lifeweigh.com

Medical Assistant: Keshia Wright recently gradudated from Everest College in Aurora with a certificate in medical assisting and is excited to share her enthusiasm and knowlwedge with patients who are beginning their lifestyle changes.  Previously, Keshia has worked in a buyer's office and as a vault clerk.  She is excited to begin a new career in the bariatric field. kwright@lifeweigh.com