Matthew B. Gretzer, MD, FACS
Professor, Urology
Director, Genitourinary Reconstructive Surgery
Clinical Specialties
Genitourinary Trauma and Reconstruction
Urethroplasty and Complex Urethral Reconstruction
Penile and Testis Prosthesis Surgery
Artificial Urinary Sphincter
Surgery to Correct Penile Curvature/Peyronies Disease
Robotic Ureteral Repair and Pyeloplasty
Urinary Diversion and Bladder Reconstruction
Continent Stoma, Ileal Conduit, Neobladder, Bladder Augmentation
Rajandeep Grewal, DO
Assistant Clinical Professor, Psychiatry - (Clinical Series Track)
Lynn M Gries, MD, FACS
Associate Professor, Surgery
Medical Director, Surgical and Trauma ICU
Brian Grogan
Assistant Clinical Professor, Obstetrics and Gynecology - (Clinical Series Track)
Robert H Groves
Clinical Associate Professor, Medicine
Harish Gudi, MD
Assistant Professor, Medical Imaging
Clinical Specialties
Cardiothoracic and Abdominal Imaging
Robert J Guerra
Clinical Associate Professor, Surgery - (Clinical Series Track)
Stefano Guerra, MD, PhD, MPH
Professor of Medicine, Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, UA Department of Medicine
The Henry E. Dahlberg Chair in Asthma Research, UA College of Medicine - Tucson
Director, Epidemiology Unit, UA Health Sciences Asthma and Airway Disease Research Center
Professor, UA Mel & Enid Zuckerman College of Public Health
Professor, UA BIO5 Institute
Marlon A. Guerrero, MD, FACS
Associate Professor, Surgery
Associate Professor, Otolaryngology
Vice Chair of Quality and Performance
Clinical 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
Alyssa Ann Guido, MPH
Program Director, Arizona AIDS Education and Training Center
John A. Guisto, MD, FACEP
Professor, Emergency Medicine - (Clinical Scholar Track)
Jennifer S Gunther, MD
Assistant Clinical Professor, Psychiatry - (Clinical Series Track)
Vivek Gupta
Assistant Clinical Professor, Anesthesiology - (Clinical Series Track)
Steven R Gurgevich, PhD
Assistant Clinical Professor, Medicine - (Clinical Series Track)