Mr. Mark Michael Chung

He is a Great doctor and he has always help in my time of need with my breathing problems...Tyrone

Outstanding support and great customer service. Patiently answered all of my questions and addressed my concerns.

Went to see Dr Chung with a severe Sinus infection. The infection caused a chronic coughing condition. I went to see other doctors but to no avail. After coughing for three years I found Dr Chung. Within two weeks the coughing had stopped and by four weeks my sinus condition had cleared completely and permanently. I no longer have to breathe through my mouth thanks to the expertise of Dr Chung. Joseph Gallo Went to see Dr Chung with a severe Sinus infection. The infection caused a chronic coughing condition. I went to see other doctors but to no avail. After coughing for three years I found Dr Chung. Within two weeks the coughing had … More

Dr. Chung is now located @ South St. & Pioneer Blvd. In Cerritos, Ca . as well. He specializes in Sleep Medicine and Pulmonary issues at this location. I was referred to him by my Primary Care Physician. I find him very knowledgeable, courteous & efficient. He is the best in my area for sleep apnea, has a great location, free parking, excellent staff. I am very glad to have found him after seeing other Z Sleep Doctors in the past 15 years who seemed to very unsympathetic to patients needs.

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Had a sleep study done back in 2011 and it was a short office visit, not the 7.5 hours that were sated on the review. This false information has effected my life unmeasurable today.

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The first thing Dr Chung said to me after I told him what was troubling me was don't worry, we'll get you feeling better. It instantly put my mind at ease.

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