Miguel A. Arenas, MD
Gastroenterologist in Tucson, AZ
Mesquite Gastroenterology and Surgery CenterDr. Miguel A. Arenas is board certified in Gastroenterology and Internal Medicine. Please see below to learn more about his specialty, medical education, and professional affiliations.
Dr. Arenas is the founding member of MGSC. He is native from Peru. Dr Arenas received his medical degree from the
San Agustin National University in Arequipa, Peru. Graduating with honors, he went on to pursue his medical training in the United States. After medical school he completed his internship and residency in Internal Medicine at the
THMEP-University of Arizona program. Wanting to further specialize, he then completed a fellowship in Gastroenterology at the
University of Arizona in 2007. He is board certified in Internal Medicine and Gastroenterology. He is married to a Tucson native Katie Belk-Arenas and they have two children. In his spare time, Dr Arenas enjoys playing the guitar and mandolin, fishing and other outdoor sports. He is active in community events and his son’s schools.
Dr. Arenas performs Endoscopic Ultrasounds (EUS) which allows him obtain images and information about the digestive tract and the surrounding tissue and organs, including the lungs.
Currently accepting new patients
Cindy Chang
Nurse Practitioner in Tucson, AZ
Mesquite Gastroenterology and Surgery Center
In her free time, she enjoys cooking, gardening, furniture restoration, and spending time outdoors with her Husband and young Sons.
Kristina Jimenez
Nurse Practitioner in Tucson, AZ
Mesquite Gastroenterology and Surgery Center
As a nurse practitioner with over 8 years of experience and 18 years in nursing I am committed to providing comprehensive, passionate, evidence-based care. I blend a holistic approach with evidence-based treatments to address the root causes of GI issues and promote long-term wellness.
My goal is to empower patients through education and personalized care plans. After spending years in family practice, I learned that I enjoyed working with patients with gastrointestinal disease.
Outside of the office, I find balance through hiking and spending quality time with my family, embracing the importance of wellness both personally and professionally.
Le Roi Arturo Baez, MD
Gastroenterologist in Tucson, AZ
Mesquite Gastroenterology and Surgery Center
Dr. Le Roi Arturo Baez is a highly experienced gastroenterologist with over 22 years of practice in the field. He was born in Acapulco, Mexico, and earned his medical degree from the Autonomous University of Guadalajara, Mexico, in 1988. Dr. Baez completed his internship at the University of Costa Rica-affiliated Hospitals in San José, Costa Rica. He then pursued residency training in Internal Medicine and Gastroenterology at The National Medical Center in Mexico City.
Dr. Baez is board-certified in Gastroenterology and is a proud member of the
American College of Gastroenterology. He is dedicated to providing comprehensive and compassionate care to his patients, with a particular focus on advanced therapeutic endoscopy. Dr. Baez offers state-of-the-art diagnostic and treatment options for a variety of gastrointestinal conditions.
When not practicing medicine, Dr. Baez enjoys traveling, reading, and spending time with family.
Alicia Encinas
Nurse Practitioner in Tucson, AZ
Mesquite Gastroenterology and Surgery Center
Certified Family Nurse Practitioner with over 16 years of healthcare experience. I began my nursing career after graduating with a Bachelor of Science in Nursing from
Grand Canyon University in 2009. For 13 years, I worked as a Registered Nurse in high-acuity settings, including ICU, Emergency Medicine, and CVICU, where I was a clinical lead, developed expertise in critical care and complex patient management.
In 2020, I earned my Master of Science in Nursing from United States University with distinction and transitioned into advanced practice in internal medicine. Managing patients in acute settings across both hospital and skilled nursing facilities for 3 years.
Passionate about delivering evidence-based, patient-centered care that empowers individuals to take an active role in their health.
Outside of work, I am married and a proud mom of three daughters. I enjoy spending time with family and friends, and love being outdoors.