What patients are saying
Overall rating
5.00
Average wait time
4.17
Bedside manner
5.00
“Welcoming atmosphere since the arrival until the end of the procedure. I felt everyone treated me with dignity and respect during the treatment. Thank you for having outstanding practice and professionalism.”
PCLess than 1 month ago
“I was in for my first ever colonoscopy. I was Drs 14 of the day. Intake was very good with staff and nurses at the Outpatient Clinic. Dr Los was very professional and good with the surgical staff. Procedure was sometimes uncomfortable but then I’d pass air and it was fine. He removed one polip but more cleanup under anesthesia in 6 months is necessary. A great professional experience.
Roger out”
RLLess than 1 month ago
About Dr. Sunny Lo
Dr. Sunny Lo is board-certified and fellowship-trained in gastroenterology and hepatology. He is a member of the American College of Gastroenterology and has trained extensively in endoscopy, colonoscopy, and endoscopic retrograde cholangiopancreatography (ERCP) procedures. His medical interests range from treating patients with esophageal disorders, reflux disease, weight loss, inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), hepatobiliary disease, and pancreatic disorders.
Dr. Lo received his undergraduate degree in Biological Sciences from the University of California, Irvine and his medical degree at Western University of Health Sciences in Pomona, California. He completed his residency in Internal Medicine at Loma Linda University Medical Center and his fellowship in Gastroenterology fellowship at UC Health Parkview Medical Center in Colorado.
Dr. Lo is committed to providing the best patient care. In his spare time, he enjoys spending time with his family, playing basketball, and being outdoors. In addition to English, he is fluent in Mandarin.
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Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Acute stomach inflammation/infection
Colonoscopy
Acute gastrointestinal bleeding
Acute hemorrhoids
Upper GI endoscopy
Acute stomach inflammation/infection
Colonoscopy
Acute gastrointestinal bleeding
Acute hemorrhoids
Office location
Education and background
Practice names
Education and training
- Medical School - Western University of Health Sciences, Doctor of Osteopathic Medicine
- Loma Linda University Medical Center, Residency in Internal Medicine
- UCHealth Parkview Medical Center, Fellowship in Gastroenterology
Professional memberships
- American College of Gastroenterology
Languages spoken
- English
- Chinese (Mandarin)
Provider's gender
Male
NPI number
1891053187
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
4.17
Bedside manner
5.00
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6 reviews
Most relevant
Welcoming atmosphere since the arrival until the end of the procedure. I felt everyone treated me with dignity and respect during the treatment. Thank you for having outstanding practice and professionalism.
Less than 1 month agoPC
I was in for my first ever colonoscopy. I was Drs 14 of the day. Intake was very good with staff and nurses at the Outpatient Clinic. Dr Los was very professional and good with the surgical staff. Procedure was sometimes uncomfortable but then I’d pass air and it was fine. He removed one polip but more cleanup under anesthesia in 6 months is necessary. A great professional experience.
Roger out
Less than 1 month agoRL
Quickly and sharply
Less than 1 month agoCT
Very professional, friendly, and knowledgeable.
Less than 1 month agoAV
It is definitely one to look at if you need a gastrointestinal doctor. Easy to make an appointment, but the wait room is a bit cramped and takes awhile to get in and see the doctor. But after the initial process, everything only gets better. Staff seems patient and knowledgeable. Doctor is enthusiastic and will actually talk to you as a person not just a subject of interest. I would definitely go back.
Less than 1 month agoDM
June 2, 2026Karlo P.Verified patient
How soon can I make an appointment with Dr. Sunny Lo?
Generally, Dr. Sunny Lo has appointments available on Zocdoc within 1 week. You can see Dr. Lo's earliest availability on Zocdoc and make an appointment online.
Is Dr. Sunny Lo accepting new patients?
Dr. Sunny Lo generally accepts new patients on Zocdoc. You can see Dr. Lo's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Sunny Lo accept my insurance?
Choose your insurance plan to verify if Dr. Lo is in-network.
Can I make an appointment with Dr. Sunny Lo online?
Yes, you can make an appointment online with Dr. Lo using Zocdoc. It’s simple, secure, and free.
What practice does Dr. Sunny Lo work with?
Dr. Sunny Lo works with SoCal Digestive Wellness.
Where is Dr. Sunny Lo's office located?
Dr. Sunny Lo's office is located at 612 W Duarte Rd, Arcadia, CA 91007.
What are common reasons for patients to see Dr. Sunny Lo?
Dr. Sunny Lo frequently sees patients for Abdominal Pain, Colonoscopy, Gastroenterology Consultation, Hemorrhoids, and Weight Loss Consultation. You can see other visit reasons for Dr. Sunny Lo on their profile.
What languages does Dr. Sunny Lo speak?
Dr. Sunny Lo speaks English and Chinese (Mandarin).
How do patients rate Dr. Sunny Lo in reviews?
6 patients have reviewed Dr. Sunny Lo. The overall rating for this doctor is 5/5. They have a 5/5 rating for bedside manner and a 4.17/5 rating for wait time. You can read individual reviews and ratings on their profile.