17742 Beach Boulevard, Suite 345, Huntington Beach, CA 92647

Welcome to OCEANN ENT

Orange County Ear, Allergy, Nose & Neck

Kathy Yu-Syken, MD, FACS

John Vincent Enverga, MSHS, PA-C

Stephanie Cho, MSHS, PA-C

Ear, Nose, Throat ENT


Sinus Specialists located in Huntington Beach, CA & Serving Patients in Southern California

Here at OCEANN ENT we offer comprehensive services for Ear, Nose, and Throat conditions with a Sub-Specialty Focus in Rhinologic conditions, especially those requiring extensive expertise in Sinus Procedures and Surgeries. Patients can count on personalized and compassionate care whether they have a sinus infection, ongoing allergies, Eustachian tube dysfunction, ear infection, throat disorders, or any other ENT problem. Evaluation begins at the initial phone call where our highly trained staff can assess patients’ current situation and schedule them with the most effective provider to best manage their presenting symptoms. The Sinus Surgeon, Dr. Kathy Yu-Syken, has personally trained her PAs (John Vincent Enverga, PA-C and Stephanie Cho, PA-C), who will be evaluating, diagnosing, and treating patients starting at their initial visit in order to most efficiently coordinate patient care. Although Dr. Yu-Syken will mostly be performing In-Office Sinus, Nasal, and Eustachian Tube Procedures due to the high volume of demand for her surgical proficiency, she will also still be available for more complex cases for consult, and to directly assess cases which may benefit from Sinus Procedures.

Although Dr. Yu-Syken always begins with the most conservative treatment that's best for each patient's needs, she specializes in Minimally Invasive and CT-guided Sinus Procedures such as In-Office Balloon Sinuplasty that are effective, don't need an incision, and produce long-lasting relief from conditions such as chronic sinusitis.

 Ear, Nose, Throat (ENT)

Passionate About Medicine. Compassionate About People. Invested in Innovation.



A note to our Patients about mitigation of COVID-19 at OCEANN ENT

We want you to know our office remains open, and we also want to assure you that we are here to manage both your Ear, Nose, Throat and Sinus Conditions while also taking extra precautions to ensure the safety of our Staff and Patients.
Be advised of the following practice modifications:
1) Face masks are now required for all patients, visitors, and staff (even for those who are vaccinated) in accordance to healthcare guidelines. Those who cannot wear a mask due to a medical condition can choose to wait in the car and will be contacted via cell phone when it is their turn to be roomed, and will be escorted directly to exam room.
2) All persons entering our Office/Clinic will have temperature and symptom screening performed prior to their visit.
3) If you have a known exposure within the last 10 days, we ask that you reschedule your appointment in the Office/Clinic and seek additional care and testing. We can accommodate by providing Telemedicine visits if necessary.
4) We will be practicing social distancing and ask that all visitors stay 6 feet apart.
5) Additional disinfected practices have been implemented to reduce the risk of exposure and/or transmission.

allergy treatment


Kathy Yu-Syken, MD, FACS

Kathy Yu-Syken, MD, FACS

Ear, Nose & Throat Doctor & Sinus Specialist

John Vincent, MSHS, PA-C

John Vincent Enverga, MSHS, PA-C

Otolaryngology Physician Assistant

Stephanie Cho, MSHS, PA-C

Stephanie Cho, MSHS, PA-C

Otolaryngology Physician Assistant

Let the experts help you!


Your good health and comfort is our greatest achievement.


allergy services


Look at all the things we can help you with!


Minimally Invasive Sinus Procedures


CT Image-Guided Sinus Procedure

Nasal Disorders


In-Office Sinus Balloon Dilation

throat, thyroid, neck, choke, gland, windpipeCreated with Sketch.

Throat and Neck

Orange County Ear, Allergy, Nose & Neck (OCEANN)


OCEAN ENT provides full-spectrum comprehensive services for Ear, Nose, Throat (ENT) conditions. We offer our services in Huntington Beach, California. Patients count on our personalized and compassionate care whether they have a sinus infection, ongoing allergies, ear infection, hearing loss, throat disorders, or any other ENT problem.

If you have any questions, concerns, or comments regarding Orange County Ear, Allergy, Nose & Neck (OCEANN), please fill out the contact form or call us at (714) 375 4224.,

Get in Touch Today!

Contact Us


Phone: (714) 375 4224Fax: (714) 375 4231

Opening Hours

Monday 9:00 AM – 5:00 PMTuesday 9:00 AM – 5:00 PMWednesday 9:00 AM – 5:00 PMThursday 9:00 AM – 5:00 PMFriday 9:00 AM – 5:00 PM
CLOSED Saturdays & Sundays

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