Meet Our Team

Meet our Roseville Dental Team at Twelve Bridges Dental Group


Dr. Raj Zanzi


Raj Zanzi, DMD graduated from Tufts University School of Dental Medicine,Boston in 1999 and has dedicated his professional career to providing his patients with outstanding dental care.He has served the Roseville, Rocklin, Lincoln and surrounding Sacramento communities for the last 6 years.Dr Zanzi is a member of the American Dental Association,California Dental Association & Sacramento Valley Academy of Cosmetic Dentistry.

Dr Zanzi is continually participating in advanced training and continuing education courses too keep himself updated with the latest dentistry has to offer.He is commited to providing high quality dentistry in a personalised and caring atmosphere.

Dr Zanzi lives in Roseville,CA with his wife Insiya and daughters Sarrah & Samina.He enjoys travelling,movies and spending time with his family

Dr. Insiya Zanzi


Dr Insiya Zanzi graduated from University of Bombay,India in 1996.....3 years later she completed all of the requirements necessary in General & Restorative Dentistry to practice in the State Of California.Since early 2000 ,Dr Zanzi has been committed to providing high quality dentistry in a personalised and caring atmosphere.Her feminine touch and appreciation for excellence makes her patients instantly feel at ease...

She is a loving mother of 2 beautiful girls Sarrah & Samina and loves spending time with her family..She also enjoys the outdoors especially travelling!

Dr. Allen Sanders


Dr. Allen Sanders is a native of Northern California. He received a BA in Biology from Pacific Union College, his DDS from Loma Linda University.

Upon graduation, Dr. Sanders completed a one year General Practice Residency with the Veterans Hospital, Sepulveda, California, and completed the five year orthodontic course through the United States Dental Institute, San Francisco, California, in 1990.

Dr. Sanders is an active member of the Sacramento Dental Society, SDDS, California Dental Society, CDA, American Dental Society, ADA, American Orthodontic Society, AOS, American Association for Functional Orthodontics, AAFO, and The International Association for Orthodontics, IAO.

Dr. Sanders and his wonderful wife, Kathy, have three children, Rachel, Laurel, and Matthew. In addition to spending time with his family, Dr. Sanders enjoys reading, skiing, bicycling, and hiking in the nearby Sierra Nevada Mountains.

Cheryl Purtill

Office Manager

I feel fortunate to have been with Twelve Bridges Dental from the beginning going on 10 years already!  I am proud to be a part of such an amazing team! I have enjoyed watching this practice grow and meeting and helping many patients along the way.

My family and I reside in Roseville and I enjoy traveling, reading, and spending time with my three children and two grandchildren!

Michelle Neal

Front Office Specialist

Michele has been working in the dental field for the past 10years. She is  excited to be part of the Twelve Bridges Dental team & looks forward to welcoming you at this beautiful office. She is knowledgeable about different insurance companies and will work with them  to maximize your benefits. Michele lives in Roseville with her family ,and enjoys the great outdoors, camping ,and spending time with her family& friends.

Liz T

Insurance Specialist

Amy Theis

Registered Dental Hygienist

Amy has 7 years of Dental Hygiene experience .She believes our oral health greatly influences our overall health .Hence she would like to educate her patients so they can successfully maintain healthy teeth and gums .She has two teenage sons and a dog .During her free time she enjoys camping with her family & visiting the ocean.She is looking forward to meeting you & your family

Jeanette Clark

Registered Dental Hygienist

Jeanette is excited to be a part of the wonderful team at Twelve Bridges Dental.She is committted to building trust and creating a pleasant experience during your visits.She enjoys educating patients on oral health and helping them take optimal care of their smile.When not taking care of patients ,Jeanette loves spending time with family, friends and her fur-babies


Registered Dental Hygienist

Ruth entered the dental field in 2010 as a dental assistant and soon found her passion in the profession. She knew that one day she wanted to further her career and become a dental hygienist.

Having been a phobic patient herself in the past, she understands the need to feel comfortable and at ease in the dental chair. She strives to give the best care and education to her patients to obtain optimal oral heath. In her spare time, she loves traveling, cooking, reading, and being outdoors.

Isell G

Dental Assistant

Isell has been working in the dental field for 7 years and loves her job and the people she meets at Twelve Bridges Dental.She understands
people can be nervous coming to the dentist and does her absolute best to make them comfortable and welcome with her sweet smile.  She lives in
Roseville with her family and enjoys going to the church when she has time...Isell is looking forward to meeting you at your next visit

Holly N

My name is Holly and I’m a dental assistant. I absolutely love my job here at Twelve Bridges Dental and feel honored to work beside both Dr. Zanzi’s.  I enjoy helping patients feel better about their dental care by providing a calm atmosphere all the while getting to know them on a more personal level. I hope to make every visit a good one and can’t wait to see you here with us!

Jasmine H

Dental Assistant

Jasmine graduated from ROP dental assistant program in Sacramento, California . Her energetic personality is perfect suited to take on the challenges with 9 years of experience in dental field . She loves and enjoy working with Twelve Bridges Dental team and both Drs Zanzi . She loves playing piano, cooking and reading poetry . 

Farnaz Najafi

Registered Dental Assistant

Farnaz finished her Dental assisting program at Sacramento City College and has enjoyed 11 years of assisting experience...She enjoys working at Twelve Bridges Dental because our patients get the best treatment and everybody is so nice to work with.Farnaz looks forward to being part of Twelve Bridges Dental for years to come.

Farnaz and her husband live in the Twelve Bridges community in Lincoln and she enjoys cooking,decorating her house and traveling to exotic places.