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About Oral Surgery Partners
Leading Oral & Maxillofacial Surgeons Serving the South Bay and Greater Los Angeles Area
At Oral Surgery Partners, we are more than a surgical practice—we are a team of highly trained, board-certified oral and maxillofacial surgeons committed to clinical excellence, compassionate care, and the health of the communities we serve. With state-of-the-art surgical facilities in Redondo Beach, Manhattan Beach, and Westchester, our mission is to deliver world-class care with a personalized, patient-first approach.
Our Practice Philosophy
We believe that every patient deserves:
Access to the highest level of surgical expertise
Clear communication and respect throughout their care journey
A surgical experience that prioritizes safety, comfort, and predictable outcomes
We specialize in dental implants, wisdom teeth removal, bone grafting, reconstructive facial surgery, and sedation/anesthesia for complex procedures.
Our surgeons are leaders in their field—published researchers, educators, and clinicians who are as committed to patient care as they are to surgical innovation.
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Meet Our Surgeons
We provide specialized surgical care tailored to each patient’s needs. Whether you’re planning ahead, facing an emergency, or replacing missing teeth, we’re here to guide you with integrity and skill.
Dr. Trent Westernoff, DMD, MD
A Harvard-trained oral and maxillofacial surgeon and U.S. Army veteran, Dr. Westernoff brings decades of experience in full-scope oral surgery.
He is board-certified by both the American Board of Oral and Maxillofacial Surgery and the National Dental Board of Anesthesiology. Known for his leadership, Dr. Westernoff has served on several dental society boards and is committed to clinical excellence and veteran care.
Dr. Rohin Ambaram, DDS, MD
With dual degrees from UCLA and Wayne State University, Dr. Ambaram specializes in comprehensive oral and maxillofacial surgery with a focus on implantology and anesthesia.
His background includes advanced surgical training at Detroit Medical Center and extensive volunteer service in underserved communities.
Dr. Martin Mardirosian, DDS, MS, MD
Dr. Mardirosian is a UCLA-trained oral surgeon with advanced degrees in both dentistry and medicine. He has a special interest in complex reconstructive procedures and community outreach.
His involvement with global health missions and research speaks to his commitment to advancing care beyond the office.
Dr. Joshua Wohlgemuth, DDS, MD
Dr. Wohlgemuth brings a unique background in both business and biomedical sciences. A graduate of Columbia University and UCLA, he is known for his patient-centered approach and involvement in education and philanthropy.
He is also a passionate advocate for improving access to surgical care through nonprofit efforts.
Community Involvement
Giving back is at the core of who we are. Our surgeons actively support charitable programs such as Give Kids a Smile, CDA Cares, Crowns for Kids, and Everyone for Veterans. From providing pro bono surgical care to underserved children to supporting our nation's veterans, we strive to make a meaningful difference beyond our surgical suites.
In Memory of Dr. Brooks
Dr. Brooks was a beloved member of our practice and the Westchester dental community. His legacy lives on through the compassionate care and high standards he set. We are proud to carry forward his vision and values in every aspect of our work.
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Why Patients Choose Oral Surgery Partners
We believe oral surgery care should be transparent, comfortable, and empowering. At Oral Surgery Partners:
Board-Certified Surgeons with Medical & Dental Degrees
Full-Scope Oral & Maxillofacial Surgery Under One Roof
Hospital-Level Anesthesia and IV Sedation Options
State-of-the-Art Surgical Centers Across Three Locations
Same-Day Emergency Implants & Full-Arch Treatment
Bilingual and Culturally Sensitive Team
Seamless Coordination with Referring Providers
PPO Insurance Accepted + Flexible Financial Options
Offices Conveniently Located in the South Bay
We proudly serve patients throughout Los Angeles, including:
Whether you're here for wisdom tooth removal, dental implants, or complex facial surgery, you’ll receive care from a trusted team of experts.
Redondo Beach Office
Manhattan Beach Office
Westchester (Los Angeles) Office
Ready to Get Started?
We’re here to help you understand your options, relieve pain, replace missing teeth, and return to comfort and function.