Important Notice to Our Patients of Phishing Incident
Kaleida Health logo

Bariatric Program
Meet Our Team

Experience, quality and outcomes matter. Here at Buffalo General Medical Center, we have the largest team of Laparoscopic Fellowship trained surgeons in WNY.

We are the only Comprehensive Center in WNY to offer advanced laparoscopic general surgery, anti-reflux surgery, bariatric surgery and robotic bariatric surgery.

Meet Our Team

Alan Posner, MD

Alan Posner, MD
Surgical Director of Bariatrics, Kaleida Health

Aaron Hoffman, MD

Aaron Hoffman, MD
Chief of Surgery, Kaleida Health;
Medical Director, Center for Minimally Invasive Surgery

John L. Butsch, MD

John L. Butsch, MD
Chief of Robotic Surgery, Buffalo General Medical Center

Kimberly Pierce, MSN - Clinical Nurse Practitioner
Laurie Schmidt, MSN - Clinical Nurse Practitioner
Susan Tobias, MSN - Clinical Nurse Practitioner
Ann Marie Zehler, NP
Jeanne Lew-Phillips, MS - Registered Dietician
Geraldine Stark - Physical Therapist