To schedule an appointment please call OasisMD at 844-627-4763 Monday through Friday 8:30am to 5:00pm. Email our office for an appointment at: info@oasismd.com.

After hours leave a message on the voicemail or email us at info@drdavidchao.com. All calls and emails will be returned within 24 business hours.

Medical Clinic Hours

  • Monday – 1:00pm to 4:30pm
  • Tuesday – 8:30am to 11:30am
  • Wednesday – 1:00pm to 4:30pm
  • Thursday – 8:30am to 11:30am
  • Friday – 1:00pm to 4:30pm

All requests for appointments are based on availability.


If you need to cancel or reschedule your appointment, please please call Djuana at 844-627-4763 Ext. 2317 and/or Guadalupe at 844-627-4763 Ext. 2318 Monday through Friday 8:30am to 5:00pm.

After hours leave a message on the voicemail and all calls will be returned within 24 business hours.

Payment Options

Cash, Check or Credit Cards (MasterCard, Visa, Discover) accepted.

Accepted Insurance Plans

Dr. Chaos office accepts Medicare and most PPO insurance plans. Please call our office at 844-627-4763 to confirm we accept your insurance plan. Please note that HMO plans are not accepted at this time.

Office Policies

Prescription Refills

If you require a prescription refill, please call your pharmacy and have them fax us the refill request at: 760-635-7801.

Please submit your request to the pharmacy two days prior to your prescription running out so there is no delay.

If the prescription has not been refilled within 24 hours please call our office and leave a voicemail at 844-627-4763 Ext. 2319 or 2322.

For new prescription requests: 844-627-4763 Ext. 2319 or 2322 and leave a detailed message including the pharmacy information. All requests will be handled within 24 hours.

Disability Forms

For state disability forms to be processed, the ORIGINAL form(s) need to be dropped off at OASIS’s reception desk. The forms will be forwarded to the appropriate staff member for processing and mailed to the address on the form(s). Please allow 48 to 72 hours for processing.

Post-Op Questions

Please call our office at 844-627-4763 and ask for the operator or press “0”. The operator will page the next available ATC or PA to answer your questions.

Hospital Privileges

  • OASIS Surgery Center

Request an appointment

Sign & Print HIPAA Privacy Policy
This page was last updated on 11/01/2016 5:57 PM PST by Shaun D. Young, PA-C at Oasis MD
call us text us