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Office Hours
Monday-Thursday 9:00 a.m.-12:00 noon and 2:00 p.m.-5:00 p.m.

Friday 9:00 a.m. until 12:00 noon

OCOH is closed for most holidays.

To make an appointment, simply stop by our office or telephone us during regular business hours.

Appointments, Emergencies or After hours
949.646.6441-Dr. VanderMolen (Suite 3A)
949.646.3223-Dr. Semeniuk (Suite 3E)
949.722.0350-Dr. Klein, Dr. Nguyen (Treatment Center)

You may call us at any time, 24 hours a day, seven days a week. One of our physicians is on call at all times. However, If your call comes during non-business hours, a representative will contact  the doctor that is on call at the time.

Never hesitate to call if you consider the matter an emergency. Be assured of a prompt response.

 
     
     
 
  • Our core philosophy utilizes our experience with the most current technologies and practices
  • We cultivate a warm, spacious and comfortable environment for treatment
  • Our staff represent a variety of medical disciplines to offer the widest scope of experience for the best possible treatment
 
     
  Six Tips for Choosing a Doctor and
Getting High-quality Care		  
     
 
  1. Understand Your Diagnosis
  2. Get Input from People You Trust
  3. Get the Care That Your Diagnosis Requires
  4. Consider a Second Opinion
  5. Be Comfortable with Your Choice
  6. Remember: There may sometimes be more than one correct answer
  
 
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