smile line dentistry logo

Meet the Team

Make an Appointment
dr. sidhu
General Dentist

Dr. Mona Sidhu

Dr. Mandeep (Mona) Sidhu is a highly experienced and compassionate dentist with over 19 years of clinical expertise. Since earning her BDS and DDS degrees, she has completed numerous postgraduate courses across various fields of dentistry, continually advancing her knowledge and skills.
Dr. Sidhu is deeply committed not only to her patients’ oral health but also to their overall comfort and emotional well-being. She understands that visiting the dentist can be stressful for some, and she takes great care to create a welcoming, calming environment that helps patients feel at ease throughout their dental experience.
Organizations:
American Dental AssociationAlameda County Dental SocietyCalifornia Dental AssociationInternational Academy Of Facial Aesthetics
dr. dieps picture
General Dentist

Dr. Brandon Diep

Dr. Diep grew up in San Ramon and earned his undergraduate degree from the University of San Francisco before receiving his Doctor of Dental Surgery degree from the University of the Pacific Arthur A. Dugoni School of Dentistry. Outside of dentistry,
Dr. Diep enjoys cooking, taking walks, and spending time with his adorable puppy. He also loves traveling and exploring new destinations whenever he can. A passionate sports fan, he proudly cheers on the Golden State Warriors — go Dubs!
Organizations:
American Dental AssociationAlameda County Dental Society
dr. ghobrial1
General Dentist

Dr. Joseph Ghobrial

Dr. Ghobrial is a proud Bay Area native, raised in Concord, California. He completed his undergraduate studies at the University of California, Berkeley, and went on to earn his Doctor of Dental Surgery (DDS) degree from the University of the Pacific.
Dr. Ghobrial is passionate about delivering the highest quality dental care while fostering a strong partnership with each patient. His approach emphasizes not only oral health but also overall well-being—ensuring every visit is comfortable, collaborative, and positive.

“I take pride in providing exceptional care while working together with my patients to achieve lasting health—always striving to make them feel happy, informed, and at ease.”
dr. luu 1
General Dentist

Dr. Eric Luu

Dr. Eric Luu began his academic journey at the University of California, Davis, where he earned a Bachelor of Science in Biochemistry and Molecular Biology. He then moved to New York City to pursue his Doctor of Dental Surgery (DDS) degree at New York University.
Following dental school, Dr. Luu completed a General Practice Residency at St. Barnabas Hospital in the Bronx. There, he gained hands-on experience in a wide range of dental procedures and further honed his diagnostic and clinical skills in a fast-paced hospital setting.

Now back in his hometown of Livermore, Dr. Luu is proud to serve the community just a few miles from his alma mater, Granada High School—Go Matadors! He is dedicated to providing high-quality, patient-centered care in a setting that feels both familiar and welcoming.
dr. chepyala
General Dentist

Dr. Vaishnavi Chepyala

Dr. Chepyala earned her DDS from VCU School of Dentistry and is passionate about providing compassionate, patient-centered care. As a mother of two young girls, she values connection, empathy, and creating a comfortable experience for every patient she treats.
Outside of dentistry, Dr. Chepyala enjoys traveling, exploring new cultures and cuisines, and spending quality time with family and friends. She has a deep appreciation for art and design, which influences her attention to detail and aesthetic approach to dentistry. She is committed to delivering the highest standard of care with a gentle, thoughtful touch.
dr. nam
Periodontist

Dr. Kyung (Philip) Nam

Dr. Nam is passionate about sharing his expertise in Periodontics and Implantology with both his patients and peers. He is deeply committed to providing ethical, evidence-based care using the latest advancements in dental technology.
Dr. Nam specializes in digital implant dentistry, utilizing minimally invasive 3D planning techniques to ensure precise, comfortable, and efficient implant placement. He remains at the forefront of his field by completing advanced continuing education courses each year, continually expanding his clinical knowledge and skills.

Dr. Nam earned his Doctor of Dental Surgery (DDS) degree from the University of California, San Francisco, followed by advanced training in Periodontics and Implantology, along with a Master’s degree, from Stony Brook University in New York.

He is an active member of several professional organizations, including:
American Academy of PeriodontologyInternational Journal of Periodontics and Restorative DentistryInternational Association of Dental ResearchAmerican Dental AssociationCalifornia Dental Association
Dr. Nam is dedicated to helping every patient achieve and maintain a healthy, confident smile through expert care and a personalized, compassionate approach.
dr. khan 1
Endodontist

Dr. Ghazala R. Khan

Dr. Ghazala Khan is committed to delivering the highest standard of dental care by combining advanced technology with compassion, integrity, and clinical excellence.
“My goal is to provide my patients with the highest level of care utilizing the most advanced technology in a compassionate and ethical manner. I strive to exceed this goal every day.”

Dr. Khan earned her Doctor of Dental Surgery (DDS) degree from the University of California, San Francisco (UCSF), where she continued her education through a General Dentistry Program. During her time at UCSF, she gained extensive experience treating patients with special needs in both clinical and hospital settings, including performing procedures in the operating room.

She also served as Associate Director of the General Practice Residency (GPR)/Hospital Dentistry Program at UCSF, further developing her leadership and clinical skills. In 2007, she began her postgraduate training in Endodontics at UCSF and completed her residency in 2010. Since then, Dr. Khan has been in private practice, specializing in root canal therapy and endodontic care.
Licensure:
California Dental License, California Dental Board
Organizations:
American Association of Endodontists
American Dental Association
San Joaquin Dental Society
oniel 1
Operations Manager

Oniel Dean

Oniel defines excellent customer service as truly listening to patients and consistently going above and beyond to meet their needs.
With over 18 years of experience in the dental field, Oniel is responsible for managing day-to-day operations and overseeing office affairs. He holds a bachelor’s degree in Business Management and an MBA in Marketing.

In his free time, Oniel enjoys traveling, hiking with his dogs, and staying active through workouts.
ghazal
Hygienist

Ghazal Kabirjuyan

Ghazal is a dedicated dental hygienist who is deeply passionate about oral health and patient care.
“I am very passionate about oral health and strive to be part of improving my patients’ health through proper home care and by always putting their needs first.”

Ghazal began her career in dentistry as a registered dental assistant before completing her Dental Hygiene education at Diablo Valley College and Carrington College. Her hands-on experience and clinical training have shaped her patient-centered approach to hygiene care.

A Bay Area native, Ghazal recently settled in Antioch with her husband. Outside of work, she enjoys outdoor activities and traveling the world to explore new cultures and experiences.
harmeet
Hygienist

Harmeet Singh

Harmeet has been a Registered Dental Hygienist since 2007, graduating with honors from the University of the Pacific. Originally from the Fiji Islands, she has called California home since 2003.
When she’s not caring for patients, Harmeet enjoys staying active with her two children and their beloved mini Goldendoodle, Bear. She loves working out, hiking, and exploring national parks—embracing every opportunity to connect with nature and her family.
elana 1
Hygienist

Elana Nanda

Elana Naanda is a caring and dedicated dental hygienist who is passionate about helping patients feel comfortable and confident in their smiles. With a gentle approach and warm personality, she enjoys building meaningful relationships with patients while providing thorough, personalized care.
Elana began her journey working as a receptionist at Smile Line Dentistry, where she discovered her passion for patient care and oral health. Inspired to further her career, she pursued her education in dental hygiene before returning to continue serving the community she loves.

As a proud mother to her energetic 2-year-old daughter, Elana understands the importance of patience, compassion, and creating a positive experience for patients of all ages. She is committed to helping every patient achieve and maintain a healthy smile through education and preventive care.

Outside of the office, Elana loves traveling and creating memorable experiences with her family and friends. She is married to a DJ who is also a physical therapist, and together they enjoy hosting events and parties, bringing people together through fun, music, and community.
image1
Hygienist

Linda Bowie

Linda is a dedicated Dental Hygienist with 39 years of experience and has been part of Smile lineDentistry since 2021. She specializes in dental cleanings, periodontal therapy, and oral health education, and is committed to helping patients feel comfortable and at ease during their visits. Linda believes that building trusting relationships and practicing patience are essential to promoting long-term oral health.
Outside of the office, she enjoys reading, baking, taking long walks with her dogs, and spending quality time with family and friends. She is also actively involved in her community.
Smile Line Dentistry Logo

Have Questions For Our Dentists?

We are able to address any concerns you may have about your teeth, a procedure, or just share information that helps you remain informed.
smile line dentistry logo

We are proud to provide our patients with the best in dental technology, treatment options and patient comfort. It is our pleasure to address all your questions and concerns.

Smile Line Antioch:
Smile Line East Ave, Livermore:
Mon - Fri: 8:00 AM -5:00 PM
Saturday: Appointment Only
chevron-down linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram