JULY 2026

Please be advised that our office will be closed July 3, July 24 and July 27.

We apologize for any inconvenience this may cause.

For Medical Emergencies: Please call 911 or go to the nearest emergency room/urgent care facility.
For Urgent Matters: Please text 909-713-3605. Our on-call staff will respond within 30 minutes.
For Non-Urgent Matters: Please call and leave a message at 909-902-9998. We will review and respond to your message promptly upon our return.

Thank you for your understanding.

If you have any questions or non-urgent concerns, you are welcome to text us at 909-713-3605.

We will do our best to respond promptly and assist you during non-business hours.

Thank you for trusting us with your care.

Warm regards,

Joel De La Merced, M.D. and Michelle Urriquia, FNP-C

Hours of Operation

Monday - Wednesday 8am-430pm

Thursday and Friday 8am-11am for In Person Visits,

1-430pm available by text 909-713-3605.

See above for dates office will be closed.

Contact Us

2140 Grand Ave Suite 210, Chino Hills, CA 91709

(non-secured email and not monitored during non-business hours.)

909-902-9998