Breathe Better.
Live Better.
Expert care for chronic sinusitis, nasal obstruction and complex sinus conditions, from one of LA's most awarded sinus surgeons.
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Welcome to the Southern California Sinus Institute.
At Southern California Sinus Institute, Dr. Alen Cohen provides personalized, advanced care for patients struggling with chronic sinus problems. As a leading expert in Balloon Sinuplasty, he focuses on understanding the cause of each patient's symptoms and choosing the most effective, least invasive treatment whenever possible.
year after year
Fix the Cause, Not Just the Symptoms.
In-Office Balloon Sinuplasty
A small balloon gently opens blocked sinus passages in about twenty minutes, with no cutting and back to work the next day. Performed in-office under local anesthesia. Over 5,000 performed by Dr. Cohen.
Deviated Septum Repair (Septoplasty)
Straightens the wall between your nostrils so air actually gets through, often paired with turbinate reduction for lasting relief from congestion and mouth-breathing.
Endoscopic Sinus Surgery
Image-guided, minimally invasive surgery for chronic sinusitis and polyps that have not responded to other treatment. No external incisions, faster recovery.
In-Office Polypectomy
Removes nasal polyps at the source under local anesthesia, with no operating room and no general anesthesia. Most patients return to normal activity the same day.
The Doctor Other Doctors Send Their Family To.
Dr. Alen Cohen is a board-certified nose, sinus, head and neck surgeon, UCLA-trained, and consistently regarded as one of the best sinus doctors in Los Angeles. He founded the Southern California Sinus Institute in 2009 and has led its recognition as a national Sinus Center of Excellence, training physicians from across the country in the in-office techniques he pioneered.
Sinus Care Built Around Your Recovery.
Since 2009, the Institute has moved thousands of patients out of hospital operating rooms and into twenty-minute office procedures, and it hosts physicians from across the country for peer-to-peer training in those techniques.
Hundreds of Reviews.One Theme: “I Can Finally Breathe.”
Advice You Can Actually Use.
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Why One Side of Your Nose Feels Blocked All the Time
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Relief Starts With the Right Diagnosis.
Balloon Sinuplasty,
Done in the Office.
A minimally invasive procedure under local anesthesia. About twenty minutes, no hospital, no general anesthesia, and most patients are back to work the next day. Dr. Cohen has performed more than 5,000 of them.
Ready to Breathe Better?
Send us your contact information and our team will reach out to schedule your visit. Prefer to talk now?
(818) 888-7878
