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Meet Our Doctors

Dorothy Pang, DDS, MS – Pediatric Dentist

Dr. Pang loves practicing and teaching pediatric dentistry. A native of Hong Kong, Dr. Pang finished high school and college in England, where she met her husband, Dr. Peter Lee, with whom she shares the practice. They moved from Chapel Hill, North Carolina, to San Francisco in 1992 when Dr. Pang joined the faculty of the University of California, San Francisco and became the Graduate Program Director of Pediatric Dentistry. In 1997, Dr. Pang left her full-time academic position to start her private practice in San Francisco, but she has maintained a part-time teaching position at UCSF since then.

Dr. Pang received her initial dental degrees from King’s College, London and the Royal College of Surgeons of England, then her Doctorate of Dental Surgery degree from the University of Texas, Health Science Center at Houston, and her Certificate in Pediatric Dentistry and Master of Science from the University of North Carolina at Chapel Hill. She is a Health Science Clinical Professor at UCSF, a Fellow of the American Academy of Pediatric Dentistry (ABPD), and a Diplomate as well as a Consultant and Examiner of the American Board of Pediatric Dentistry. Dr. Pang became a board-certified pediatric dentist and was chosen in 2017 to serve as one of the six Directors for the American Board of Pediatric Dentistry.

Dr. Pang is a member of the following associations:

  • American Academy of Pediatrics
  • American Academy of Pediatric Dentistry
  • American Board of Pediatric Dentistry
  • Clinical professor in the Division of Pediatric Dentistry of the
  • Department of Orofacial Sciences at the University of California UCSF School of Dentistry
  • American Dental Association®
  • California Dental Association
  • San Francisco Dental Society

Dr. Pang, Dr. Lee and their two sons live in San Francisco. They enjoy traveling, going to the movies, reading, cooking, and watching the Food Network as a family. Periodically, they visit their family and friends in Hong Kong, Malaysia, and England. Dr. Pang also enjoys hanging out with friends over the weekend. Her claim to fame in cooking that draws recurrent visitors is her rib eye roast stuffed with garlic, but she cooks it only if she doesn’t see patients on Monday!

Amy Chen, DDS, MS – Pediatric Dentist

Dr. Chen attended the University of California, Berkeley and achieved a Bachelor of Arts in molecular and cell biology. It was during her undergraduate program that she developed a passion for serving the homeless and socio-economically disadvantaged residents of the community at the Berkeley Free Clinic. She completed dental school at UCSF School of Dentistry and went on to attain her specialty certification in pediatric dentistry and master’s degree in orofacial sciences.

While in graduate school, Dr. Chen was a finalist for the Graduate Student Research Award (GSRA) for research in dental cariology and caries prevention. She is a proud member of the California Dental Association, American Academy of Pediatric Dentistry, American Dental Association and other local San Francisco pediatric associations.

Dr. Chen loves to spend time with her family and friends in the Bay area. She enjoys reading, running, playing tennis, traveling and meeting new people. One of her favorite novels is “The Kite Runner.” During basketball season you can catch her cheering on the Golden State Warriors. She is fluent in Mandarin and can conversationally speak Taiwanese.

Dr. Chen is committed to providing compassionate and personalized dental care to nurture beautiful smiles for your little ones while building lifelong trust and friendship.

Dr. Michelle

Dr. Michelle grew up in San Jose, California and received her dual Bachelor’s degree from University of California, Berkeley in Integrative Biology and Nutritional Science – Physiology. During undergrad, she combined her studies with her passion of working with children by focusing her research on global malnutrition and early childhood caries. She traveled to Vietnam during her junior year summer for her research and was inspired to pursue pediatric dentistry.

Dr. Michelle received her Doctor of Dental Medicine degree from Tufts University School of Dental Medicine in Boston, Massachusetts. She returned to the Bay Area to complete her pediatric dentistry training at University of California, San Francisco. She continued her research in oral health and nutrition in Vietnam and received her Masters in Oral and Craniofacial Sciences. Upon graduation, Dr. Michelle was awarded the Outstanding Clinician Award. She values creating a positive and personalized experience for each patient with emphasis on preventive dentistry to promote lifelong healthy smiles.

Dr. Michelle loves exploring the Bay Area and national parks with her husband, children and Cody, her labradoodle. She enjoys playing tennis, biking, traveling, and anything outdoors!

Dr. Stephen Long

Dr. Stephen Long graduated from Georgetown University School of Medicine then completed his residency in Anesthesiology and a pediatric fellowship at the University of San Francisco (UCSF).

He is board certified in Anesthesiology and Pediatric Anesthesiology. Dr. Long has a special interest in Pediatric Pain Management. He has been in practice for 10 years at Oakland Children’s Hospital where he was both the Medical Director of Pediatric Anesthesia and Medical Director of Pediatric Pain Management. He has given several lectures about safety in anesthesia for the California Society of Pediatric Dentistry. Dr. Long provides anesthesia iat OPDSF. Steve has three children.

Helen Mo, DDS, MS – Pediatric Dentist

Dr. Helen was born in Alabama and raised in Georgia. She received her bachelor’s degree from Cornell University in both biology and psychology and earned a Doctor of Dental Medicine (DMD) degree from the University of Pennsylvania.

Dr. Helen has always had a passion for working with children. During college, she worked as a summer schoolteacher and volunteered for multiple dental mission trips to Nicaragua, where she was first exposed to pediatric dentistry. She continued her efforts in dental school by providing dental services to pediatric refugee populations and schoolchildren in underserved areas of Philadelphia. In dental school, Dr. Helen was also student body president.

After a big move to the West Coast, Dr. Helen obtained her Certificate of Pediatric Dentistry and Master of Science at the University of California, San Francisco (UCSF). In residency, she focused her interests on treating children with neurodevelopmental disorders and founded a dental desensitization program for these children. She currently works as a part-time teaching faculty member at UCSF, where she oversees this clinic. Dr. Helen also volunteers as Director for the California Society of Pediatric Dentistry, which is an organization devoted to advancing the oral health of the children of California.

Outside of dentistry, Dr. Helen enjoys spending time with her husband (who is also a dentist), her two children, Olivia and Cameron, and their golden doodle, Kingston. Together, they love exploring the Bay Area.

Dr. Helen treats every patient like she would her own child. She strives to provide dental care with the highest level of compassion so that she can build a lifelong relationship with your child and your family.

To learn more about pediatric dentistry in San Francisco, CA, schedule your child’s appointment with our caring pediatric dentists. Please contact us today at (415) 661-8383 We look forward to meeting