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Harpreet Tiwana, DDS, is a general dentist at Laguna Oaks Dental in Elk Grove, California. He has been working in the greater Sacramento region for over five years. 

He graduated from New York University in 2002 and completed his general practice residency in Chicago, Illinois. Dr. Tiwana then completed a mini-residency in pediatric dentistry from the University of Minnesota as well as one in endodontics (root canal treatment) offered by prominent endodontist Dr. John West at IDEA Academy in California. He has also been extensively trained by Dr. Michael Duggan, DDS, PhD, of The Duggan Institute of Dentistry in Costa Mesa, California.

Dr. Tiwana has taken several continuing education courses including courses offered by Dr. Gordon Christensen in Provo, Utah, and continually updates his knowledge through continuing education courses at the University of Pacific, San Francisco, and various other courses. 

He is committed to providing excellent care to his patients and also caters to fearful patients by providing nitrous oxide sedation. Dr. Tiwana enjoys treating both children and adults, and enjoys listening to his patients and helping them attain optimal dental health.

In his off time, Dr. Tiwana enjoys spending time with his family, reading, and traveling. 

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.

Sierra Oaks Dental is a general dentistry practice in Sacramento, California. Under the care of skilled sedation and cosmetic dentist Peter Kim, DDS, and his compassionate team, the practice aims to deliver the best treatment outcomes for their patients. 

Dr. Kim has been serving the Sacramento community for over eight years, and he is well loved by families for his personalized approach to care and delivering excellent treatments. He always makes himself available to his patients, even after hours on weekdays, weekends, and holidays, when they have emergency dental concerns like root canals. 

He enjoys forming bonds with the patients in his care, developing lifelong relationships to ensure their beautiful smiles can last a lifetime. Dr. Kim grew up in the Bay Area, where he completed his undergraduate education at UC Berkeley and his doctorate in dental surgery at UOP, San Francisco. 

Dr. Kim holds dental implant certification from the world-renowned AIC Education Center and Invisalign® certification. He is highly skilled in a variety of cosmetic treatments, including professional teeth whitening and veneers. 

Through thorough oral exams, patient education, and transparent discussions, Dr. Kim and his staff look out for patients’ oral health and take care of their dental needs with the highest quality of care. The practice’s philosophy is based on integrity, and every team member is committed to empowering patients to make decisions that are best for their health.

Dr. Kim and the hygienists at Sierra Oaks Dental are honored to be a part of many people’s dental care, and are looking forward to serving new and returning families. Call the office to arrange a visit or schedule an appointment online today.

Dr. Wenli Loo is a general and cosmetic dentist in San Francisco and San Ramon, CA. Dr. Loo has been practicing dentistry for 20 years. She completed her dental education at the New York University School of Dentistry in 2002. She continued her studies by completing a residency at the Veteran’s Affairs Hospital. Dr.Loo keeps current with the latest technology and finds continuing education very important. She has taken numerous advance education courses at The Dawson Academy, The Misch Implant Institute and the American Academy of Clear Aligners.

She is currently a member of:

• American Dental Association (ADA)
• California Dental Association (CDA)
• San Francisco Dental Society (SFDS)
• American Academy of Cosmetic Dentistry (AACD)
• Academy of General Dentistry (AGD)

When Dr.Loo is not at her practices, she devotes herself to being a mom and loves spending time with her family.

As an associate dentist, Dr. Schexnayder provides exceptional dental care for her patients including fillings and cleanings, along with assisting in complex treatment planning and surgical cases. She is a graduate of the University of California, Los Angeles School of Dentistry and completed her Dental Post-Bachelor program at San Francisco State University. Her research in Parental Functional Health has been published in the Journal of the California Dental Association, and she is an active member of the Contra Costa Dental Society.

When she’s not creating beautiful, healthy smiles at Le Chabot Dental, Dr. Schexnayder spends her time with her new husband baking, hiking and swimming. She is also an avid reader of fantasy novels such as Harry Potter and The Belgariad.

Experience & Approach

Dr. Andy Le is a board-certified dental implant specialist with over 20 years of dentistry and oral surgery experience. From single dental implants and implant-supported dentures, to full mouth restoration and reconstruction, Dr. Le utilizes the most advanced technology and surgical techniques to achieve the best results for his patients. He believes the key to ensuring the best results for his patients start with good communication and setting realistic expectations.

Education & Accreditation

Dr. Le is a Diplomate of the American Board of Oral Implantology and Implant Dentistry (ABOI/ID), a designation of the highest level of competency in implant dentistry. He is a Fellow of the International Congress of Oral Implantologists, and received his Master of Oral Implantology at the University of Nevada, Las Vegas-School of Dental Medicine. Dr. Le earned his Doctor of Dental Surgery (DDS) degree from Marquette University in Milwaukee, Wisconsin, and his Bachelor of Science (BS) degree in Biology from the University of California, Santa Barbara.

Affiliations & Accolades

Doctors Improving Healthcare Inc. recognized Dr. Le as one of the “Bay Area's Top Doctors & Dentist" for 2010. He's an active member of the American Dental Association, the California Dental Association, the California Implant Institute, and Alameda County Dental Society. He is also a speaker and lecturer for various dental implant courses.

Because of my commitment to excellence some have labeled me as somewhat of a perfectionist... Although true to a certain extent, I disagree. Without the fear of being wrong, I sincerely care about everything I do and try my best to do it well.”

Born in Hawaii and raised in Vallejo, Kevin Cabugao received his BS in Genetics at the University of California at Davis and worked in biotechnology before refocusing his energies towards graduate school. While Kevin found his work in the pharmaceutical industry rewarding, he felt unsatisfied with his career and sought an education that would best complement his enthusiasm for helping others with his understanding of the sciences. With this intention, he received his MBA from California State University East Bay and DDS from the University of the Pacific School of Dentistry. Currently, he is an active member of the American Dental Association, California Dental Association as a member of the Board of Component Relations and has served as the former President of the Napa/Solano Dental Society.

When away from the office, Kevin enjoys listening to music, snowboarding and honing his martial arts as a 4th degree Kajukenbo black belt with over 30 years of experience! At the heart of my practice philosophy is a simple belief: to treat each of my patients like family, providing personalized, compassionate care that goes beyond their dental needs. Welcome to our dental family, where your smile and well-being are our top priority.

Dr. Omid Elie was born and raised in Foster City and has returned to practice dentistry. He graduated from UCLA in 2014 with a Bachelors in molecular, cell, and developmental biology and then attended UCSF dental school for his Doctorate of dental surgery. When not at work, you can find Dr. Elie working on his physical fitness with a run or at the gym. In his downtime, he'll be cheering on the Warriors and 49ers or looking for a good stand-up comic to watch.

Dr. Elie's main focus is preventative dentistry and oral hygiene education. He believes going to the dentist should be a comfortable, fun experience, and treatment planning should be a conversation with the main focus being optimal oral health for the long run.

About Dr. DiPonziano

Dr. John DiPonziano has been performing the surgical placement and prosthetic restoration of dental implants since the mid-eighties.

• Prior to attending dental school, Dr. DiPonziano was a full-time dental technician and earned Certified Dental Technician status, which he still maintains today. Dr. DiPonziano performs many of the implant laboratory procedures himself and is well versed in all aspects of the implant treatment picture – from the laboratory planning phase to surgery and prosthetic restoration.
• Dr. DiPonziano is a graduate of Temple University School of Dentistry in 1983
• He has also completed a three-year didactic and participatory program in Implantology at the University of Pennsylvania in 1988.

The following are a few of Dr. DiPonziano's additional degrees:

• Fellow and Diplomate of the International Congress of Oral ImplantologistsA credentialed member of the American Academy of Implant Dentistry
• Fellow and Master of the Academy of General Dentistry
• Fellow of the American College of Dentists

The following are a few of Dr. DiPonziano's accomplishments:

• Dr. DiPonziano has served as President of the New Jersey Academy of General Dentistry in 2003.
• He has also chaired the National AGD Implantology Task Force, which formulated universal educational guidelines for implant training in 2009.
• Dr. DiPonziano has served as past Chair of Continuing Dental Education of the California Academy of General Dentistry
• In addition to his clinical practice, he teaches surgical and prosthetic implant dentistry throughout the country for several organizations such as Hiossen Implants, his Implant Continuum,
• Implant Study Club and in the past for Nobel Implants.