(707) 745-8002142 East D Street, Benicia, CA 94510

Meet Our Team
Meet Our Doctors
David P. Shafer, DDS

Dr. David Shafer is a long time resident of the Benicia-Vallejo area. He attended St. Patrick’s High School in Vallejo prior to undergraduate studies at the University of California at Davis as a Biochemistry major. In 1985 he received his D.D.S. degree from the University of California at San Francisco. While there he was awarded a fellowship in Gerontology by the Medical Anthropology Department. After dental school graduation, Dr. Shafer completed a General Practice Residency at the Veterans Administration Medical Center in San Diego.

In 1986 Dr. Shafer returned to Benicia as an associate dentist with Carquinez Dental Group. In 2008 he was selected for inclusion in the Bay Area’s Top Dentists listing by Bay Area Consumers’ Checkbook. More recently the Doctors Improving Healthcare organization chose Dr. Shafer to receive the “2010 Bay Area Top Doctors & Dentists Award” for his achievements in general dentistry.

He and his wife Charlene are raising two daughters. The family enjoys snow skiing and boarding, boating, and many youth sports. On Fall Saturday mornings you may occasionally see Dr. Shafer refereeing a youth soccer match at Community Park. Dr Shafer is proud to work, volunteer, and raise his family in our city of Benicia.

Brian A. Houston, DDS

Dr. Houston was raised in Petaluma, CA and earned a B.S. degree in Biological Sciences from U.C. Davis. He lived in Manhattan for four years and attended New York University where he graduated with his D.D.S. degree in 2004. He returned to the Bay Area and lived in San Francisco while completing his postgraduate specialty residency in Prosthodontics at U.C.S.F., graduating as the Chief Resident in 2007.

Dr. Houston is a member of the Napa Solano Dental Society (NSDS), California Dental Association (CDA), American Dental Association (ADA), and American College of Prosthodontists (ACP). He attends many continuing education meetings throughout the year and has lectured internationally on Implant Dentistry.

Dr. Houston joined Carquinez Dental Group in October 2007. He enjoys cars, motorcycles, running, snowboarding, weight training, coaching his kid's soccer, baseball, and softball teams, and spending time with his wife and kids.

Sukhmani Singh, DDS

Dr. Singh obtained her DDS at the University of Southern California in 2004, after which she completed a one year general practice residency at the Los Angeles County and the Los Angeles Ambulatory VA facility. She has worked in private practice in Beverly Hills and Simi Valley for one year prior to coming to the Bay Area for her Prosthodontics residency. She completed her Postgraduate Prosthodontic training at the University of California at San Francisco, where she graduated as the chief resident.

Dr. Singh was born and raised in Toronto, Ontario, Canada, where she attended the University of Toronto for her undergraduate studies. She relocated to Los Angeles in 2000, and has been in the Bay area since 2006.

Dr. Singh enjoys cooking, reading, arts and crafts such as knitting and jewelry making, working out, and traveling.

Meet Our Team
Tammy- Office Manager/RDA

Tammy started with Carquinez Dental Group in 2006 as a Registered Dental Assistant and is now the Office Manager. She graduated from Diablo Valley College's Dental Assisting program in 2005. Tammy is a Benicia native who enjoys kickboxing, weight training, and spending time with her husband, her kids, and her friends.

Kerrie - Patient Coordinator

Has been with Carquinez Dental Group since 1986. Kerrie was born and raised in Vallejo and has lived locally all her life, she is a true “California Girl". She likes reading, taking drives to the beach and doing local adventures, as well as travel when the opportunity arises! She also likes to cook, take long walks and spend time with family and grandchildren.

Michelle - Patient Coordinator

Has been with Carquinez Dental Group since 2002. Graduated from College Park High School & Western Career College. Likes to walk her dogs and play with her son.

Carolina - Patient Coordinator
Carolina started with Carquinez Dental Group in December 2017. She is our Patient/Hygiene Coordinator. She enjoys traveing, spending time with family, and she loves to work out.
Kelly - RDH

Has been with Carquinez Dental Group since 1994. Graduated from Texas Woman’s University, Texas. Likes to run, travel, hike, camp, gardening & dancing.

Kari - RDH

Has been with Carquinez Dental Group since 1999. Graduated from Diablo Valley College, Pleasant Hill 1995. Resides in Benicia.

Tara - RDH

Has been with Carquinez Dental Group since 2000. Graduated from Dental Hygiene School at Taft College. Tara is married and has 2 children. Plays volleyball with the Benicia City League. Likes to go to the movies and just hang out with friends.

Sara - RDH

Has been with Carquinez Dental Group since 2005. Graduated from Diablo Valley College in Dental Hygiene 2004. Sara is married and they have one son, Matthew. She enjoys photography and scrap booking.

Matthew - RDH
Matthew returned to Carquinez Dental Group in 2016 after graduating from Dental Hygiene School at Diablo Valley College in 2013. He is married and has 2 children. His likes and interests include spending time with family and friends, outdoor activities, music, cars, and rooting for the San Francisco Giants.
Zoila - RDAEF

Expanded Functions works with Dr. Houston and Dr. Singh. Has been with Carquinez Dental Group since 1981. Attended Solano Junior College and graduated from the Solano Regional Occupational Program for Dental Assisting. Obtained her EF (expanded functions) certificate from University of California at San Francisco. Zoila is originally from El Salvador Central America. She enjoys camping, hiking and jet skiing with her family. She loves long walks with her dogs, Molly and Gracie. She also enjoys reading and knitting.

Laura - RDAEF

Expanded Functions, works with Dr. Houston and Dr. Singh. Has been with Carquinez Dental Group since 1997. Graduated from Reedley College. Loves Jazzercise and reading.

Lily - RDA

Chair side assistant for Dr. Shafer. Has been with Carquinez Dental Group since 2003. Graduated from Western Career College in 2000. Lily loves her job and working with Dr. Shafer. She enjoys working with all the employees in the group too!

Victoria - DA