Public provider listing

Sunny Lo, DO

4.8(223)

Sunny Lo, DO is a Gastroenterologist practice in Arcadia, CA. Rated 4.8 from 223 public reviews. Phone and website are listed.

Address

612 W Duarte Rd Ste 601, Arcadia, CA 91007
Arcadia, CA 91007

Public hours

Listed hours

As published
Monday
9AM–5PM
Tuesday
9AM–5PM
Wednesday
9AM–5PM
Thursday
9AM–5PM
Friday
9AM–5PM
Saturday
Closed
Sunday
Closed
Verified listing details

Credentials, affiliations, and coverage

Checked Aug 27, 2026

Sources

Federal data is attributed to its source and does not imply CMS endorsement.

Public media

Newest photos

Up to 10

No public photos are available for this listing.

Public reviews

Newest reviews

Up to 10

Sarah Mi

5.0

Had my colonoscopy today, the staff was so professional in the surgery center and Dr. Sunny Lo is absolutely great!

Sam Liu

5.0

Dr. Lo was clear in explaining the pre and post procedures. Everything went off without a hitch. Thank you for the smooth operation.

Lloyd Del Rosario

5.0

No written review was provided.

hilario nava

5.0

No written review was provided.

J Yang

5.0

easy to and understand and informative

Lien Phung

5.0

No written review was provided.

jenny Zhu

5.0

The doctor is professional and patient.

review review

1.0

Extremely disappointed with this office. I submitted my insurance information well in advance of my appointment. No one ever called to tell me there was any issue with my insurance — yet they later claimed they “couldn’t reach me,” which makes no sense because they called me just the day before to confirm my appointment. On top of that, the office was running late for every single patient that day. I waited over an hour past my appointment time, and I wasn’t the only one — other patients in the waiting room had been sitting there for over an hour as well. After all that waiting, they finally told me my insurance wasn’t covered and I couldn’t be seen. If they had verified my insurance beforehand (as they should have), or actually called me about the issue, I wouldn’t have wasted an entire morning. Chronic overbooking, poor communication, and zero respect for patients’ time.

lida pasco

5.0

No written review was provided.

Frances Harsono

5.0

I am highly recommanded Dr. Sunny Lo, he is so care and very throughly listen to patient issues why they go visit his clinic. After that he explained the issues one by one. Thank you Dr. Lo take care of my husband health.

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