Leading the Way in Exceptional Healthcare

West Coast Pulmonary & Sleep Disorders Center has been helping patients breathe easier and sleep better since 2004. Combining patient-centric care with state-of-the-art diagnostics and treatment capabilities, we deliver the top-notch service our patients deserve at two conveniently located clinics in Ventura County.

An Accredited Sleep Disorder Clinic

Tired of being tired all the time? Dealing with a sleep disorder can be a frustrating, exhausting, and debilitating experience. West Coast Pulmonary & Sleep Disorders Center is here to help. Our sleep center is accredited by the American Commission for Health Care Services (ACHC), a designation that speaks to the commitment we place on our exceptional patient care, clinical recommendations, and practitioner qualifications. Our sleep specialists hold board certifications in sleep medicine and are highly experienced at administering sleep studies, analyzing the results, and providing comprehensive treatment plans. What’s more, we’re also the only local sleep center that is able to diagnose and treat pediatric patients for sleep disorders (starting at age 13). With the ability to perform in-lab sleep studies in hotel-quality suites as well as at-home sleep studies, we are the facility to turn to. We’ll help you sleep better for life

Meet Our Team

The experienced team of medical providers at West Coast Pulmonary & Sleep Disorders Center is here to provide you with top-notch care that goes above and beyond to meet your needs. All of our providers are board-certified in internal medicine and many also hold additional board certifications in pulmonary disease, sleep medicine, and critical care medicine. Our bilingual staff can speak English and Spanish for our patients’ convenience.

Allison Wastak, MSN, FNP, AGACNP


Zachary Taich, M.D.


Laura Craver, PA-C


Darren Maehara, M.D.


G. Sofia Nelson, M.D.


Osezemeghonghon (Seze) Obilor, M.D.


Andrew Weymer, M.D.


Movses Hayrabedian, M.D.


Why Choose Us

Our team is dedicated to providing individualized, highly specialized, and comprehensive care that meets the unique needs of our patients, and we happily work with tertiary care centers to facilitate referrals. You can depend on us to deliver accurate diagnoses and comprehensive treatment, all in a patient-centric setting.

Patient-Centric Care

Giving our patients a positive healthcare experience is important to us, and we go to great lengths to provide the patient-centric care they deserve.

Prompt Appointments

We can often see patients same-day or within 24 hours, as we typically have urgent appointments available. Prompt care is just a phone call away!

Experienced Providers

From board-certified pulmonologists to sleep-certified specialists, our clinicians are extensively trained to provide our patients with highly skilled care.

Insurance Accepted

We accept most major insurance plans as well as local HMOs to make the payment process as affordable and seamless as possible.


Cutting-Edge Technology

Here at West Coast Pulmonary & Sleep Disorders Center, we’re committed to providing state-of-the-art diagnostics for our patients, which is why we’re so excited to offer an alternative to the traditional, closed pulmonary function test. Rather then stepping inside a cabin-like body box, you can receive a pulmonary function test right in an examination room. The PulmOne MiniBox+ makes it possible. This desktop plethysmography device is the first of its kind and delivers accurate lung volume measurements in just 60 seconds. With fully automated controls that generate data digitally, PulmOne MiniBox+ is a state-of-the-art machine that is the perfect option for patients who may be claustrophobic, be wheelchair-bound, or simply want a simpler way to receive their pulmonary function test.

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