West Hills Encino

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  • Board Certified Nose & Sinus Surgeon
  • Board Certified Head & Neck Surgeon


  • Over 15 years of experience
  • Sinus Center of Excellence
  • Over 4,000 nose & sinus procedures
  • Over 2,000 in-office balloon procedures


  • Monday – Friday: 8:30am – 5:00pm

Alen N. Cohen, M.D., F.A.C.S.

Awarded Best Sinus Surgeon in LA

Recognized as the Best Sinus Surgeon in Los Angeles, Dr. Alen Cohen, Founder and Director of LA’s premier sinus center, the Southern California Sinus Institute serves the greater Los Angeles, San Fernando Valley and Ventura County areas. The Southern California Sinus Institute was founded in 2009 and specializes in the medical and surgical treatment of patients with all nasal and sinus disorders including nasal obstruction, deviated septum, hypertrophic turbinates, environmental allergies, acute and chronic sinusitis, nose and sinus polyps, recurrent severe and debilitating sinus infections and sinus headaches.

Top Beverly Hills Sinus Surgeon


Los Angeles based Alen N. Cohen, M.D., F.A.C.S. is a Board-Certified ENT/Head and Neck Surgeon, a renowned expert in the field of Nasal & Sinus Surgery and Assistant Clinical Professor of Surgery at the David Geffen School of Medicine at UCLA.  As the founder and director of the Southern California Sinus Institute, Dr. Cohen is among an exclusive group of surgeons in the country who focus on the medical and surgical management of nasal and sinus disorders.  Dr. Cohen’s passion for minimally invasive surgery has led him to achieve recognition as an expert in the revolutionary and life-changing In-Office Balloon Sinuplasty procedure as well as outpatient Minimally Invasive Image Guided Sinus Surgery (MIGSS).  Furthermore, his institute in West Hills has been designated as an Entellus Balloon Sinus Dilation Center of Excellence on the West Coast.  As such he routinely trains physicians from all over the United States on the art of In-Office sinus procedures under local anesthesia, of which he has personally performed over 2,000 procedures.

Dr. Cohen received his medical degree from UCLA David Geffen School of Medicine, graduating summa cum laude and Phi Beta Kappa.  He earned his M. D. degree after four years and was recruited to pursue a Head and Neck Surgical Residency at UCLA Medical Center, a top 5 program in the country. While at UCLA Medical Center Dr. Cohen completed 2 years of general surgical training and 4 years of specialized ENT/Head and Neck surgical training.  During his training at UCLA, he rotated to Harbor General County Hospital, Olive View Medical Center, Wadsworth Veteran’s Hospital and Children’s Hospital of Los Angeles (CHLA).  He completed his residency with a one-year Chief Residency in Head and Neck Surgery at UCLA Medical Center, where he specialized in minimally invasive techniques for the surgical management of nasal and sinus disorders, thyroid and parathyroid diseases and head and neck tumors.

He is presently a Fellow of the American College of Surgeons (FACS), a Fellow of the American Rhinologic Society (FARS) and is board certified by the American Board of Otolaryngology/Head and Neck Surgery (AAO-HNS). He also maintains a full membership in the American Academy of Facial Plastic and Reconstructive Surgery (AAFPRS).   Furthermore he has been honored to be Chief of Surgery at West Hills Hospital & Medical Center since 2013.

Lastly over his career Dr. Cohen has received numerous awards by patients and peers for his expertise in management of nose and sinus patients.  These awards include:

2013-2016             Los Angeles Magazine Super Doctor

2009-2016             America’s Top Surgeons, ENT/Head and Neck Surgery (Consumer Research Council of America)

2008-2016             Patient’s Choice Award –

2008-2016             Most Compassionate Doctor –

2011-2016             Leading Physicians of the World

2012-2016    Recognized Physician

2012-2016            Who is Who of Doctors

Dr. Cohen continues to passionately care for his patients near and far and always wants to provide top-notch care to alleviate their discomfort. As such if you or a loved one want the best care for your nose or sinus problems contact the institute to schedule a consultation with Dr. Alen Cohen.

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