Our Team

Leslie C. McClellan, MD, FACS, FASMBS

A list of honors and accolades make up the reputation of Dr. Leslie McClellan. One of the leading surgeons in her field, Dr. McClellan is a Board Certified General Surgeon specializing in bariatric surgery. Dr. McClellan was the first female bariatric surgeon in the state of Illinois, and is a fellow of the American Society for Metabolic and Bariatric Surgery (FASMBS).

Learn more about Dr. McClellan.

James Greenberg, MD

Dr. Greenberg is a Board Certified General Surgeon specializing in bariatric surgery. He is licensed in both Illinois and Wisconsin and has been performing bariatric surgery since 2003.

Dr. Greenberg is trained and performs Roux-En-Y Gastric Bypass, Lap-Bands and Sleeve Gastrectomies.

Dietician

Sharon Swanson, RD, LD, CDE

Our dietician will meet with you during your pre-op appointment and post-op classes. Your gastric bypass surgery is the "tool" that you will use to help lose your weight. It will work best if you know how to use it. Most patients find that following surgery there are some foods that they can no longer eat. Our dietician will work with you on what works best, what to avoid, and how to read labels and avoid unpleasant side effects from eating the wrong foods.

Registered Nurses

Corrine Kohn, RN, BSN

Program manager
Pre-op scheduler
Surgery scheduler
Clinic nurse in Vernon Hills

Jean Mazzie, RN

Band fill scheduler
Clinic nurse in Harvard

Maria Kostantacos, RN, BA, CNOR, RNFA

Surgical assistant
Discharge nurse

Physical Therapy

Donna Coghlin, PTA

Calculates BMI
Measures neck, chest, waist, leg and calf values for insurance

Our physical therapy staff assist with fitness plans, and will re-introduce you to exercise, help you to set personal fitness goals, and to develop your life-long fitness plan.

Utilization Review Specialst

Nancy Borchers, UR

Our utilization review specialst will perform the insurance authorization and approval process for you. When approval is obtained from your insurance company, we will advise you of all out-of-pocket costs before we schedule your surgery.

Patients who choose to pay for their bariatric surgery themselves must make arrangements with patient accounts prior to their surgery. Mercy Center for Metabolic and Bariatric Surgery offers a special package for cash patients, which include all of the usual services, at a substantial discount.

The process of getting insurance approval for your bariatric surgery involves several steps, and varies with each insurance company and its types of policies.

A complete medical history must be obtained from each prospective patient. Any supporting documentation you can submit, including letters from your present physicians, will be beneficial in proving "medical necessity" for this surgery, including all of your past efforts to control your weight (diet programs that sell pre-packaged foods, drugs like Redux™ etc.).