Dr. Hooman Zarrinkelk and Dr. Hessam Siavash are trusted and experienced oral and maxillofacial surgeons who perform the full scope of oral and maxillofacial surgery treatments at their practices in Ventura and Ojai, CA, including dental implant placement, wisdom teeth removal, general tooth extraction, bone grafting procedures, jaw surgery, pediatric oral surgery, and more.


An outstanding experience

Everything that we do at Greater Ventura Oral & Facial Surgery Dental Implant Experts centers around the health, comfort, and safety of our patients. Our practices in Ventura and Ojai, CA, are equipped with the latest surgical and diagnostic tools to ensure our patients receive the top-notch care they have come to expect from our experienced team. We are excited to welcome you to our practice.

Compassionate oral surgery care

Greater Ventura Oral & Facial Surgery Dental Implant Experts offers oral and maxillofacial surgery treatments for patients of all ages at their state-of-the-art practices in Ventura and Ojai, CA.


Learn about dental implants in Ojai and Ventura, CA

Dental implants are a permanent and complete tooth replacement solution that can restore oral health and function.

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Learn about wisdom teeth removal in Ojai and Ventura, CA

We recommend having wisdom teeth removed early to prevent future complications, such as pain, cysts, infection, or impaction.

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Learn about the All-On-4® treatment concept in Ojai and Ventura, CA

An entire upper or lower arch of teeth can be beautifully and permanently restored using as few as 4 dental implant posts.

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Our Philosophy

Being a patient-centered practice means that our goal is understanding your unique needs and providing you with excellent care as we work together to improve your oral health and well-being. From creating personalized treatment plans to utilizing the most advanced techniques and equipment in the field today, our practice goes the extra mile to ensure our patients are happy, healthy, and well-informed throughout their treatment.

Meet Dr. Zarrinkelk

Dr. Zarrinkelk prides himself on providing the highest standard of care, and is staffed at both Community Memorial Hospital of San Buenaventura and Ventura County Medical Center.

Meet Dr. Siavash

Dr. Siavash completed a combined dental and PhD program and he specializes in surgical treatment and reconstruction of the face and oral cavity.


Both of our doctors are certified by the American Board of Oral and Maxillofacial Surgery, which means they uphold the highest standards of patient care.

Leading edge technology

As one of the first certified ZAGA Centers in the USA, Greater Ventura Oral Surgery provides patients with information on maxillary atrophy and access to zygomatic implants. Drs. Zarrinkelk and Siavash are at the forefront of this groundbreaking technology and serves as key opinion leaders in southern California.

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