GI Alliance Partners With Cardinal Health to Create Multi-Specialty Platform | Learn More

Due to inclement weather, all GSI Offices and Endoscopy Centers will be closed on Monday, 1/26/2026. 

We will be opening at 11am on Tuesday, 1/27/2026. Outpatient procedures and office appointments scheduled before 11am are being rescheduled. Please call our office at 804-285-8206 to schedule or reschedule your appointment as needed.

Arizona Digestive Health: Sun City Research

Arizona Digestive Health: Sun City Research

13640 North 99th Avenue
Suite 600
Sun City, AZ 85351
Phone: 623-972-2116
Fax:

Monday – Thursday
8:00AM – 4:30PM

Friday
8:00AM – 4:00PM

Request An Appointment

If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Our office will handle non-emergency requests within 48 hours.

Arizona Digestive Health: Sun City Research
13640 North 99th Avenue, Suite 600, Sun City, AZ 85351
Map of

Our Providers

Parag H. Chokshi, M.D.

GastroenterologistPhysician Executive
 in Sun City, AZ
Meet Dr. Chokshi

Daryl Hutchinson, M.D.

Gastroenterologist
 in Sun City, AZ
Meet Dr. Hutchinson

Ramkrishna R. Kothur, M.D.

Gastroenterologist
 in Sun City, AZ
Meet Dr. Kothur

Yvette Lam-Tsai, M.D.

Gastroenterologist
 in Sun City, AZ
Meet Dr. Lam-Tsai

Chirag D. Trivedi, D.O.

Gastroenterologist
Regional Medical Director
 in Sun City, AZ
Meet Dr. Trivedi

Request An Appointment

If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Our office will handle non-emergency requests within 48 hours.