Surgery

Valentine N. Nfonsam, MD, MS, FACS

Professor, Surgery
Interim Chief, Division of Surgical Oncology
Specialties
Colon and Rectal Surgery
Hemorrhoids
Fissures
Diverticulitis
Benign Colorectal Polyps
Management of Complex Stomas
Colon and Rectal Cancer
Inflammatory Bowel Disease
Benign Colorectal Disease
Benign Anorectal Disease
Colon & Rectal Surgical Oncology
Pelvic Floor Disorders

Marlon A. Guerrero, MD, FACS

Associate Professor, Surgery
Associate Professor, Otolaryngology
Vice Chair of Quality and Performance
Specialties
Endocrine Surgery
Thyroid Nodules
Thyroid Cancer
Thyroid Neoplasms
Goiters
Hyperthyroidism
Parathyroid Diseases
Neuroendocrine Tumors of the Pancreas
Pheochromocytomas
Cushing's Syndrome
Hyperaldosteronism
Adrenal Tumors
Adrenal Cortical Cancer
Gastrointestinal Neuroendocrine (Carcinoid) Tumors