About Us

SleepMS formally know as Sleep Medicine Services was founded in 1998 by Dr. Alex A. Clerk in San Jose, California. He is board-certified in both sleep medicine and psychiatry. Dr. Clerk is also one of the leading experts in the treatment of snoring and sleep apnea. Our main practice is based in heart of silicon valley and it is committed to providing high quality, evidence-based sleep medicine that is close to home. It is our priority to meet each patient’s individual needs and to ensure every patient is given the support and care needed to lead a healthy, happy life.

For more information about our dedicated team of doctors, click on the buttons below. 

Our office and night staff are friendly, highly knowledgeable, and trained to take care of your needs. We have worked diligently to provide a seamless, and encouraging experience which including telemedicine visits, electronic communication, patient portal access, and online bill pay options. We strive to deliver results well ahead of expectations and welcome collaborating with local providers. 

We take pride in listening to your questions and value open communication with our patients. If there is ever anything further, that you would like to discuss, please do not hesitate to contact us.



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Our Location

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O'Connor Health Center 1
455 O'Connor Drive, Suite 110 
San Jose, CA 95128

Contact Us

• Office: (408) 295-4532

• Fax: (408) 295-4738
• E-mail:

• Patient Portal:

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AASM SleepTM © Used with Permission
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