Contact Us

William C. To, MD
450 N. Roxbury Drive, Suite 275
Beverly Hills, CA 90210
Phone: (310) 659-9625
Fax: (310) 652-9156

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Dr. To’s regular office hours are:

• Monday:  8 am – 4:30 pm
• Tuesday:  8 am – 4:30 pm
• Wednesday:  8 am – 4:30 pm
• Thursday:  8 am – 4:30 pm
• Friday:  8 am – 12:30 pm

We are closed for lunch from 12:30 pm to 1:30 pm.

In the event of a life-threatening medical emergency, call emergency medical services at 911 immediately. DO NOT WAIT! Inform the emergency room staff that you are a patient of Dr. William C. To, and they will contact us.

If you have an urgent medical need and need to talk to a doctor after our regular hours, please call our office at (310) 659-9625. A doctor is on call 24 hours a day. Your call will be returned promptly.

Dr. To is not a provider for any insurances, but we will be happy to assist you with billing your insurance company for reimbursement. 

Dr. To has hospital or surgery center affiliations with:

• Cedars-Sinai Medical Center, Los Angeles
• Beverly Hills Surgical Institute

Prescriptions and refills for established patients of Dr. To are routinely issued during regular office hours. No refills are issued during the evenings, weekends, or holidays, as the doctor does not have access to your medical records during those times. It is helpful to anticipate your refill needs to avoid an interruption in your medication therapy.