Jefferson University Hospitals

Our Doctors

Gastroenterology

Debbie E. Schiller, MD

Jefferson University Physician
Academic Title: Clinical Instructor

Gastroenterology
Gastroenterology - Inflammatory Bowel Disease (Crohn's and Colitis)
Gastroenterology - Irritable Bowel Syndrome
Gastroenterology - General
Gastroenterology - Colonoscopy Screening/Diagnostic
Gastroenterology - Esophageal Disease
Gastroenterology - Colon Disease
Gastroenterology - Celiac Disease and Management
Gastroenterology - Gastrointestinal Bleed and Ulcers
Gastroenterology - Pancreatic, Bile Duct & Gallbladder Disease
Gastroenterology - Small & Large Bowel Endoscopic Procedures (Enteroscopy)
Gastroenterology - GI Cancer (Colon, Rectal, Liver, Bile Duct, Esophagus)

Office Locations
401 E. City Avenue, Suite 525, Bala Cynwyd, PA

Surgery

Karen A. Chojnacki, MD, FACS

Jefferson University Physician
Academic Title: Associate Professor

Surgery
Surgery - General
Surgery - Hepato-Pancreatic-Biliary
Surgery - Minimally Invasive
Surgery - Gastrointestinal
Surgery - Oncology

Office Locations
1100 Walnut Street, 5th Floor, Philadelphia, PA

Nathaniel R. Evans, MD, FACS, FCCP

Jefferson University Physician
Academic Title: Associate Professor

Surgery - Thoracic
Surgery - Minimally Invasive
Surgery - Oncology

Office Locations
834 Walnut Street, Suite 650, Philadelphia, PA
1300 Wolf Street, 1st Floor, Philadelphia, PA

Michael R. Kammerer, MD

Jefferson University Physician
Academic Title: Assistant Professor

Surgery
Surgery - Bariatric
Surgery - Minimally Invasive
Surgery - General

Office Locations
211 S. 9th Street, Suite 402, Philadelphia, PA
811 Sunset Rd., Suite 104-105, Burlington, NJ

George J. Koenig, DO

Jefferson University Physician
Academic Title: Assistant Professor

Surgery
Surgery - Trauma (Acute Care)
Surgery - Minimally Invasive
Surgery - General

Office Locations
1100 Walnut Street, 5th Floor, Philadelphia, PA

Francesco Palazzo, MD, FACS

Jefferson University Physician
Academic Title: Associate Professor

Surgery
Surgery - General
Surgery - Minimally Invasive
Surgery - Alimentary Tract
Surgery - Gastrointestinal
Surgery - Oncology
Surgery - Bariatric

Office Locations
1300 Wolf Street, 1st Floor, Philadelphia, PA
1100 Walnut Street, 5th Floor, 1st Floor, Philadelphia, PA

Michael J. Pucci, MD, FACS

Jefferson University Physician
Academic Title: Assistant Professor

Surgery
Surgery - General
Surgery - Minimally Invasive
Surgery - Alimentary Tract
Surgery - Gastrointestinal
Surgery - Hepato-Pancreatic-Biliary
Surgery - Oncology

Office Locations
1100 Walnut Street, 5th Floor, Philadelphia, PA
1300 Wolf Street, 1st Floor, Philadelphia, PA

Sung Whang, MSN, CRNP, CTTS

Jefferson University Physician

Surgery - Cardiothoracic

Office Locations
1100 Walnut Street, 5th Floor, Philadelphia, PA