Meet Our Doctors

Dr. Ridder

Dr. Linda Ridder

In the summer of 2017, Dr. Ridder and her three teenage children relocated to Vancouver to be closer to her eldest daughter, an undergraduate at the University of Washington in Seattle.

Dr. Ridder became a dentist because she’s dedicated to helping her patients achieve great health and a great quality of life. She believes wellness begins with a healthy mouth and strong, healthy teeth, and works with her patients to educate and teach in order to provide preventative and conservative care.

Dr. Ridder received her dental doctorate from the prestigious University of the Pacific’s Arthur Duoni School of Dentistry. She’s a life-long learner, taking advanced continuing education courses in order to provide the latest in comfort care and cutting edge dentistry such as braces and dental implants.


Dr. Azizi

Bio Coming Soon!

Dr Azizi



Dr. Ashwin B. Nambisan completed his Bachelor of Dental Surgery (BDS) degree at Rajiv Gandhi University of Health Sciences (India), followed by a Master’s in Public Health (MPH) from Loma Linda University. He then designed and managed dental implant and periodontal clinical trials for Zimmer Dental, when he developed a keen interest in dental implant surgery. 

Following this, Dr. Nambisan went on to the Graduate Periodontics residency program at Rutgers University, School of Dental Medicine (New Jersey) where he was awarded his Post-graduate certificate in Periodontics. He follows an evidence-based treatment approach and values continuing dental education to keep up with the advancements. 

Dr. Nambisan has a keen interest in periodontal and dental implant surgery and has considerable experience and training in Sinus Lift surgeries. Additionally, he is experienced in soft tissue and bone grafting surgical techniques.   

Dr. Nambisan is an active member of several dental societies including the American Dental Association,  Washington State Dental Association, Washington State Society of Periodontists, American Academy of Periodontology, Western Society of Periodontology. He has presented at the Metropolitan Forum, the Academy of Osseointegration and the American Academy of Implant Dentistry.

Dr. Nambisan is focused on providing the best periodontal and dental implant treatment services available for his patients. He really cares about his patients and has a vision of developing long term relationships based on trust and respect.

Dr. Herma Ranola, DMD

Growing up in Guam, Dr. Ranola didn’t have access to same quality of preventative dentistry we have here in the states. As a result, she experienced several dental problems including the need for a root canal. She decided to become a dentist to help prevent children and families from suffering the same oral health issues she did.

After receiving her undergraduate degree from the University of Washington, Dr. Ranola relocated to Florida, where she completed dental school at Nova Southeastern University in 2005. It didn’t take long for Dr. Ranola to return to Washington, intent on establishing a practice and building her family. In 2008, she opened Ranieu Family Dental here in Vancouver.

Dr. Ranola is committed to continuing education and takes several advanced courses each year. This ongoing training enhances her skills and allows her to better serve the dental care needs of her patients by providing them with a gentle and comfortable dental experience. Dr. Ranola has experience working with implants, Invisalign, and cosmetic dentistry, including veneers, bridges, and crowns. She also provides the regular care her patients need for bright and healthy smiles.

In her spare time, Dr. Ranola, her husband, Tai, and their young daughter frequently travel to Jamaica with Zion International Care to provide health services to at-risk and disadvantaged residents. As an active family, the three frequently participate in local 5K runs.

Dr. Ranola