Meticulous. Honest. Kind.

A multi-generational family of seven, including two children, a man, a woman, and an elderly woman, posing on a wooden bridge outdoors with trees in the background during autumn.

We are proud to continue the legacy of Lubberts Orthodontics at our office here in Westlake Village. At Mullen Family Orthodontics, we approach your orthodontic experience differently than many other offices. Our team is well known in the community for being the friendly neighborhood orthodontic office, where we create a welcoming and “small town” atmosphere. We look forward to serving you!

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The Mullen Family Ortho Difference

We get it – teenagers sometimes lose or stop wearing their retainers. Our Smile Guarantee will make sure they enter adulthood with a stunning smile – no questions asked.
We offer free consultations to educate each patient and family in a friendly, no-pressure environment. We accept all major dental insurance plans and offer zero-interest, flexible payment plans.
Our preference whenever possible is to consolidate child/adolescent treatment into one comprehensive phase to save you time and money.
We never want finances to dissuade patients from getting the treatment that is most ideal for their particular smile, which is why we provide our aligner treatment for the same price as braces.

A smiling man wearing a white medical coat with a name tag, standing outdoors with hills in the background.

Meet Dr. Joseph Mullen

Dr. Mullen is a dedicated orthodontist committed to creating confident, healthy smiles for patients of all ages. As a faculty member at UCLA, Dr. Mullen stays at the forefront of orthodontic innovation while remaining rooted in time-tested techniques. Outside the office, he enjoys painting, all things Disney, and spending time with his wife and four children.

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Jonathan H.

“Dr. Mullen and his amazing staff are absolutely wonderful. My wife and I were very worried needing to get orthodontic work done on our 7 year old. Dr. Mullen and his staff catered to our daughter. They explained every little detail throughly and put our minds at ease. Our daughter asked questions and the staff was very understanding to her needs and worries. Any hint of discomfort and the staff immediately addressed our concerns. We would 110% recommend him over and over again.”
Debra K.

“Dr. Mullen and his staff are extraordinary. I am very pleased with the outcome of my treatment. Dr. Mullen is extremely competent, very kind and caring and really listens to his patients. He explains each step of the treatment in detail. This is an exceptional office. If I could give higher than a five star rating, I would!”
Evelyn G.

“Dr. Mullen is an exceptional orthodontist who truly goes above and beyond for his patients. His attention to detail and commitment to patient care are evident from the very first visit. What sets him apart is his excellent communication — he takes the time to explain each step of the braces process, ensuring patients always feel informed and comfortable. His bedside manner is calm, kind, and professional, which helps create a welcoming and reassuring environment.”
Angela H.

“I'm a researcher by nature. So when our child needed braces, I intended to do consultations with a number of orthodontists. However, I never made it past Mullen Family Orthodontics. That's because we found a clear winner right from the start! Our case is complicated, but Dr. Mullen wasn't phased. He devised a complete plan and explained it all in layman's terms. No patronizing tone or speed-talk. Just an authentic desire to help. I truly believe our child is in the very best hands...and from the smiles of the many happy patients on the wall, we're not alone in that feeling!”
Andy D.

“Had the pleasure of receiving my orthodontic treatment from Dr. Joseph Mullen, and I couldn’t be more pleased with his professionalism, knowledge, timeliness, and attention to detail. My concerns throughout my treatment duration were met with patience and I was very pleased with my results!!”
Andre N.

“I was fortunate enough to be treated under Dr. Mullen’s expertise, who had taken on a unique odontoma case in the upper gums, and executed the alignment process for my teeth in exceptional fashion. For me, Dr. Mullen stood out amongst a variety of orthodontists for the genuine care he held for his patients and his commitment to perfection. Due to his noteworthy skill, intuition, and, initiative, we were able to complete the treatment process months earlier than estimated.”
Richard C.

“For years I have wanted to do some minor adjustments to my teeth. I didn't know all the technical terms, I just knew that something was off just a little bit. I was able to work with Dr. Joseph Mullen. It was a wonderful experience from start to finish – he was amazing.”
Joe M.

“From day one, I was welcomed like a member of the family by a team of talented professionals who took exceptional care of me at every visit. From the front desk to the billing department to the orthodontic assistants, everyone made what is normally an uncomfortable process feel surprisingly pleasant. Dr. Mullen and his team have created an outstanding atmosphere, and I would highly recommend their services to anyone considering orthodontic treatment.”
Leica J.

“I took my 8 year old in for a ortho consultation and we had a wonderful experience. The staff are friendly and helpful, and go out of their way to help you feel comfortable. Dr. Mullen is great with kids and I’m sure he’s great with adults too. Both he and his assistant took the time to explain to my daughter each of the things they would be doing and made sure she was comfortable before proceeding to do anything. Highly recommend!”