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About Dr. Diane E. Casey

Diane Casey, DDS, is a skilled general dentist known for her positive chairside manner and exceptional services at her private practice in Sunnyvale, California. Dr. Casey is a long-time resident of Santa Clara Valley and is proud to have served the local dental community for over 30 years.

Dr. Casey received her undergraduate degree in biochemistry from UC Berkeley in California. She went on to earn her Doctor of Dental Surgery degree from Creighton University in Omaha, Nebraska. She brings her extensive educational background to help patients resolve their dental needs.

With more than 15 years of experience in multi-dimensional dental services, Dr. Casey provides the latest care available in dentistry. In addition, she is a liaison to Community Relations and Membership Committees and an SCCDS delegate to CDA House of Delegates.

Dr. Casey stays active in her field and maintains membership with the American Dental Association, the California Dental Association, the Santa Clara County Dental Society, and the American Academy of Cosmetic Dentistry.

Dr. Esfandiar Abadi, graduated from Azad University School of Dentistry in Tehran with a doctor of dental surgery. Dr. Abadi passed his California Board exams in 2003 and since then is passionately practicing dentistry in Northern California.

His love for the art of dentistry makes him continue his research and study in different areas of dentistry and make him familiar with the latest state of the art technologies in dental treatments offered by accredited institutions. He is one of the most sought after dentists because of his gentle touch while providing extended procedures i.e. Oral surgery, Dental implant and Orthodontics.

Because Marzieh Oghabian, DDS, understands that dental care is intricately connected to overall health and wellness, she strives to help each and every patient in her care reach and maintain optimal dental health. Through her practice at Bahia Dental Group, Dr. Oghabian is honored to be the dentist of choice for so many in and around Pittsburg, California.

Dr. Oghabian began her education with a Bachelor of Science degree from the University of California at Davis. She went on to earn her dental degree from Case Western University School of Dentistry in Cleveland.

While she was there, her dedication to academic and treatment excellence earned her Case Western’s Excellence in Prosthodontics award. She remained at Case Western to complete additional training in oral surgery.

Patient education is central to Dr. Oghabian’s practice. She takes the time to make a personal connection with each man, women, and child in her care and ensures patients have all the details they need to make an informed decision about their dental health.

Creating a positive impression of dental care is also important to Dr. Oghabian. She makes every effort to put patients at ease and deliver a comfortable, positive dental experience.

To learn more about Dr. Oghabian’s unique approach to dental health and wellness, schedule a time to sit down with her to discuss your specific set of treatment needs and goals. She is currently accepting new patients through her practice at Bahia Dental Group.

Raoul Shah, DDS, is an experienced general dentist at Willow Glen Dental Center in San Jose, California. Dr. Shah is dedicated to making all of his patients happy and enjoys building long-lasting relationships with each of them.

Dr. Shah was born and raised in Michigan. He attended the University of Michigan in Ann Arbor for his undergraduate studies, where he majored in anthropology-zoology and biology. He was always interested in the medical field and ultimately chose to pursue dental school at the University of Michigan, where he graduated in 2000.

From 2000 to 2005, Dr. Shaw worked in various dental offices in Michigan, Virginia, and Georgia, before finally moving to California. Dr. Shah previously owned a dental practice in Fremont, California, for 10 years before selling it and partnering with Meridian Dental Associates in 2015, now renamed Willow Glen Dental Center. 

Dr. Shah enjoys all aspects of dentistry and has taken numerous continuing education courses throughout his career. He specifically studied the placement and restoration of dental implants and has experience treating full-mouth implant rehabilitation cases. Dedicated to providing stellar service, Dr. Shah has worked with various consultants to find ways to improve the doctor-patient relationship and  ensure his practice is headed in the right direction. 

When he’s not in the office, Dr. Shah spends most of his time with his family. His wife, Neha, and their three kids keep him very busy, attending boy scout events, gymnastics competitions, and various dance performances. He also enjoys visiting wineries, playing the occasional round of golf, and traveling.

Dr. Debra Westervelt is originally from Hemet, a small town in Southern California. In her early years of college, she found a passion in healthcare where she felt she could best impact her community and graduated with a degree in biology from La Sierra University at the top of her class. She then earned a doctorate degree at the acclaimed University of California, San Francisco.

Dr. Westervelt loves every aspect of dentistry and worked as a general dentist in the Napa area for several years. She enjoyed working closely with many specialists and collaborating in changing people’s lives. She was heavily involved in study clubs and advanced continuing education and became inspired by the specialists she had the opportunity to work with.

Fascinated with the connection between oral and systemic health and determined to further her education, Dr. Westervelt obtained her specialty certificate in periodontics from the University of Illinois at Chicago.

Dr. Westervelt is passionate about helping her community by improving each patient’s overall health through ideal periodontal health. She understands the importance of comprehensive dental care and working closely with other experts in both dentistry and medicine. Her unique point of view as both a general dentist and a periodontist allows a broad understanding of her patient’s wants and needs. Patient care is Dr. Westervelt’s top priority, and this sentiment is felt by each patient she treats.

In her free time, Dr. Westervelt enjoys hiking, camping, and bike rides with her dog Jake. She enjoys gardening and cooking with her husband, Reed.  She loves the Bay Area and enjoys exploring the surrounding ocean, mountains, and towns whenever she has the opportunity.

Magdalena Azzarelli, DDS, is an experienced cosmetic and family dentist at Hillsdale Dental Care in San Jose, California. Dr. Azzarelli has been practicing at Hillsdale Dental Care since 1997, providing her community with high-quality, patient-centered care.

Dr. Azzarelli received her dental degree from the Medical University of Silesia in Poland in 1994. Upon relocating to California, Dr. Azzarelli successfully completed the California State Dental Licensure examinations. She is highly skilled in endodontics, dental implants, cosmetic dentistry, as well as all aspects of general dentistry. Dr. Azzarelli is a member of the American Dental Association, California Dental Association, and the Santa Clara County Dental Society. She is also part of Biomet's Synergy Implant Study Club.

A strong believer in patient education, Dr. Azzarelli spends extra time with her patients and thoroughly explains their treatment options. She is patient and understanding, and puts her clients at ease with her gentle approach.

When not practicing dentistry, Dr. Azzarelli enjoys gardening, gourmet cooking, and traveling with her husband, Peter, and their son, Ian. Dr. Azzarelli is passionate about Animal Rescue. She owns 2 rescue pets herself, her dog, Snowy and cat, Maurice.

Roge Jacob, DDS, is a skilled family and cosmetic dentist who has been providing quality dental care since 1994. Dr. Jacob currently serves patients at Hillsdale Dental Care in San Jose, California. 

Dr. Jacob grew up in suburban Chicago, Illinois. He completed his pre-dental degree requirements at San Jose State University and received his dental degree from Northwestern University in Chicago.

Patients recognize Dr. Jacob for his outstanding patient care. He provides high-quality restorative, cosmetic, and preventive dentistry services in a relaxing and comfortable environment. Dr. Jacob continually enhances his skills through continuing education classes and the most recent advances in dentistry. He is a member of the American Dental Association, the California Dental Association, and the Santa Clara Dental Association.

Dr. Jacob and his wife have two children, daughter, Olivia and son, Ilias. He also owns a 100-pound Bouvier named Niko. During his time away from the office, he enjoys mountain biking, playing drums and fly fishing. He has established an 82-gallon salt water reef tank with numerous invertebrates in our office.

After graduating from Leland High School in Almaden in 1975, he received his Bachelor of Science degree in Microbiology and Biochemistry at UC Davis. Dr. Syn received his Doctorate of Dental Surgery from Northwestern University in Chicago in 1983. After practicing in the Lake Shore Area of Chicago and doing research with Northwestern Medical School in the area of Dental Vaccinations. He returned to San Jose, California to start his private practice in the neighborhood of his youth in 1984. Dr. Syn is an expert in the field of dental computer technology and has lectured and consulted in this field since 1983. He enjoys photography, videography, flyfishing, and computer science.

After graduating from Emerson High School in New Jersey, Dr. Gray received her B.S. degree in Biology from Fairleigh Dickensen University in New Jersey. She received her Doctorate of Dental Surgery from Northwestern University in Chicago in 1982. She is a published researcher and worked at the American Dental Association research facility in Chicago. Dr Gray has attended years of continuing education in the area of Orthodontics and has had extensive training in General Practice orthodontics. She came to South San Jose in 1984 to start her private practice of general dentistry and general orthodontics. While in school she worked as a Medical Microbiology Technician for Northwestern Memorial Hospital. She enjoys sewing, scrapbooking, running, swimming and the outdoors.

Olga Belova, DDS, is a highly skilled and compassionate dentist. She provides the Bay Area community with exceptional dental care at Almaden Dental Associates, conveniently located in San Jose, California.

Dr. Belova earned her first dental degree from the University of Moscow Dental School in Moscow, Russia. After relocating to the United States, she earned a Doctor of Dental Surgery from the University of the Pacific Arthur A. Dugoni School of Dentistry in San Francisco. She spends a great deal of time in continuing education courses in order to stay current on all of the latest trends and developments in dental techniques and technologies.

Dr. Belova is incredibly passionate about dentistry. She’s an active member of the Santa Clara County Dental Society, where she spends many hours engaged in society-sponsored events and committees.

Dr. Belova is fluent in Russian. When she’s not working with patients, she enjoys spending time with her two beautiful daughters.

Jing Ye, DMD, MSD, is a skilled endodontist practicing at Los Gatos Dental Specialists in Los Gatos, California.

Dr. Ye grew up in Broomall, Pennsylvania, and studied Business Administration/Accounting at Drexel University in Philadelphia, Pennsylvania. She went on to earn her Dental degree from the University of Pennsylvania, where she graduated with double Honors in Community Health and Medically Complex Clinic. After graduation, she pursued advanced training with a General Practice Residency at Kings' County Hospital in Brooklyn, New York. She moved to the Bay Area afterward and practiced as a general dentist in Walnut Creek, California.

Through providing comprehensive dentistry, she discovered her passion for Endodontics and moved back to the East Coast to complete her advanced endodontic education with a Masters of Science Degree at the Virginia Commonwealth University in Richmond, Virginia. During her training there, she volunteered at Missions of Mercy dental trips around rural Virginia and presented her research at the American Association of Endodontists Annual Meeting.

Outside of endodontics, Dr. Ye's greatest passions include traveling, enjoying savory foods, working out, and spending quality time with her husband, family, and friends.

Mandi Chhina, DDS is a family and cosmetic dentist at Pinole Family Dental in Pinole, California. She provides a full scope of general and cosmetic dentistry services.

Dr. Mandi received her graduate degree from Sri Guru Ram Das Institute of Medical Sciences & Research in Amritsar, India in 2000. She's a fellow of the International Dental Implant Association and a member of the American Dental Association, California Dental Association, and other professional organizations.

Dr. Mandi strives to improve the oral health of every patient by encouraging them to participate in preventive care. She is honored and delighted to treat the men, women, and children of diverse backgrounds that live in this wonderful community.

When not caring for her patients, Dr. Mandi likes to practice meditation and create and cook new recipes. She is married to Dr. Marc Chhina -- also a dentist at Pinole Family Dental -- and they enjoy raising their two beautiful daughters.