Dr. Nancy Azizi


Dr. Azizi was born in New Mexico, and raised in California. She attended UC Davis for her undergraduate education and earned her Doctorate of Dental Surgery Degree from UC San Francisco in 1993. In 1997, she founded Vineyard Dental. To fulfill her commitment to excellence, she employed an outstanding dental team that is equally dedicated to her vision of excellence. In 2001, she collaborated with renowned architect Farhad Ashofteh to introduce Napa's one and only dental spa.

Dr. Azizi has always kept herself at the forefront of advances in dentistry. To further her specialization in cosmetic dentistry at the highest level, she attended the prestigious "Las Vegas Institute for Advanced Cosmetic Dentistry" in 2004. Dr. Azizi has also taken extensive, post-graduate training at UCLA in the field of dental sleep medicine.

She is equally committed to a healthy lifestyle. As a Certified Personal Trainer she is dedicated to wellness and fitness. While being a mother to twin boys, she works-out regularly, hikes and eats organically. She has traveled extensively and enjoys photography. She is a fan of independent movies, spa treatments, good farm-to-table restaurants and gardening.  

General Dentist

Dr. Sunjae Jung 


Dr. Jung, originally from South Korea, grew up in Santa Barbara. She received a B.S. Degree in Biology from the University of the Pacific and went on to earn her Doctorate of Dental Surgery from University of the Pacific, Dugoni School of Dentistry in San Francisco. 

She first gained interest in dentistry from her mother who is also a dentist and followed in her footsteps. She finds fulfillment in seeing her patients have healthy, beautiful smiles and is committed to providing patients with the most comfortable and highest quality of dental care. At home she loves cooking and playing classical piano.

General Dentist

Dr. Joseph Styger 


Dr. Styger received his B.S. Degree in Business Administration from UC Berkeley. He received his Doctorate of Dental Science from Case Western Reserve University, Cleveland, Ohio, in 1981. He is active in continuing education and leading technology. In 2005, Dr. Styger joined the Vineyard Dental dentist. He quickly became popular for his sense of humor and pleasant personality. In addition to being an exceptional dentist, he is a great cook and enjoys vintage car restorations.    

General Dentist

Dr. Neha Tamhane 


Dr. Tamhane attended University of California, Los Angeles (UCLA), where she earned Dean’s Honors and obtained her Bachelor of Science in Psychobiology. She earned her Doctorate of Dental Surgery from University of California, San Francisco (UCSF). She continued her education in Periodontology at UCSF and specialized in periodontal plastic surgery, dental implants, and management of oral inflammation. At UCSF, she completed the Standard Proficiency Certification through the Institute for Advanced Laser Dentistry. She is dedicated to helping patients improve their oral health and providing the best care through evidence-based dentistry.


In her free time, Dr. Tamhane is often traveling to sunny places, hiking, and spending time with her fiancé. 


Memberships and Education

UCSF School of Dentistry

American Academy of Cosmetic Dentistry

California Dental Association

American Dental Association

Las Vegas Institute of Advanced Dental Studies

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