Patient Finds Answers Through Timely GI Evaluation at ASC
Discover how one patient found answers for chronic digestive issues at an ambulatory surgery center (ASC).
Folsom’s Best GI Doctors
Our gastroenterologists and staff at Folsom Sierra Endoscopy Center are dedicated to providing quality, affordable care to the community in our quest to lower colon cancer rates and treat an array of digestive diseases, including Crohn’s Disease, irritable bowel syndrome (IBS) and gastroesophageal reflux disease (GERD).
We believe in compassionate medicine, where patients feel reassured and unrushed. We hold ourselves to the highest of standards, as our center is accredited by the Accreditation Association for Ambulatory Health Care (AAAHC).
Our board-certified GI doctors specialize in a myriad of GI procedures, including colonoscopy, esophageal dilation, flexible sigmoidoscopy and upper endoscopy.
If you are due for a colonoscopy or in need of a GI procedure, don’t put it off any longer. Give us a call today!
For Your Visit
Folsom Sierra Endoscopy Center is committed to ensuring that your experience with us is relaxed and worry-free, from consultation through recovery. To assist us, we ask that you read and comply with all guidelines.
We’re pleased to partner with StopColonCancerNow to help boost colon cancer screenings and prevention for residents in Sacramento County.
Patient Forms
At Folsom Sierra Endoscopy Center, your time is as valuable to us as it is to you. That’s why we provide online access to a variety of forms that patients may complete before their visit. The following documents will help us expedite the check-in process for your appointment. Please take a moment to download and print the appropriate form(s).
Insurance and Billing
Folsom Sierra Endoscopy Center accepts most major insurance. We will bill your insurance carrier for you; however, we cannot tell you what your policy will cover. Since your insurance policy and coverage are between you and your carrier, we urge you to contact them prior to your procedure. You will be responsible for any co-pays and deductibles.
Meet Our Physicians
View All Physicians
John Canio
M.D.
Clark Harrison
M.D.
Ronald K. Hsu
M.D.
Drew Ingram
M.D.
Alexander H. Low
M.D.
Anand Madan
M.D.
Rakesh Parikh
M.D.
Dhruv Patel
M.D.
Erick Pecha
M.D.
Thomas Prindiville
M.D.
Nazir A. Rahim
M.D.
Jasbir Rangi
M.D.
Kanat Ransibrahmanakul
M.D.
Randell Vallero
M.D.
171,707 Reviews
Feb 26, 2026
Feb 26, 2026
A+... All team members I worked with were kind, friendly, and explained. Ha is FABULOUS! She has a fantastic bedside manner. She is extremely knowledgeable and great with all the particulars to get you ready & relaxed. She was my Pre-Op Nurse. Dr. Kavolus ... AMAZING... in all ways. Joy... OR NURSE... she entertained me during the spinal... which scarred the crap out of me. She let me squeeze her hand when needed. She kept me busy in conversation. I can't that her enough. Kat... Recovery Nurse... so gentle, kind, patient, & great job explaining the exit instructions. Woody... PT... fabulous. Even though I've been through this before, he demonstrated and explained why. I truly appreciated this. Matt... recovery nurse... gentle, understanding, kind, & helpful. I know I've missed people... like I said all GREAT!! The facility is A-1. This was the first time using this site. Surpassed my expectations.
Feb 26, 2026
Yesterday, I underwent both an EGD and a colonoscopy at the Endoscopy Center. This was not my first experience receiving care at this facility under the expertise of Dr. Corso and his team. Throughout the entire process, from check-in to discharge, every staff member I interacted with was exceptionally courteous and professional. The nurse who handled my check-in and prepared me for the procedures was particularly pleasant and easy to work with. Her skill and gentle approach made the experience much more comfortable for me, especially since I am usually quite nervous about these situations. In fact, I barely even noticed when she inserted the IV, which was a huge relief. For her kindness and expertise, I would give her an A+. Both the anesthesiologist and the nurse present in the procedure room were also extremely friendly and supportive. Their demeanor contributed greatly to my sense of comfort and reassurance during the process. Based on my positive experiences, I strongly recommend Dr. Corso and suggest having procedures performed at the Endoscopy Center.
Feb 26, 2026
My nurse was extremely nice and professional. Made me feel very comfortable. Would highly recommend
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Always kind and took their time to let me know all about the surgery. Made me comfortable! I never knew how how bad my eyes were until after surgery and I could see everything again. I love the staff!