Meet The Doctors

Meet The Doctors

Dr. Philip P. Nguyen


Dr. Philip P. Nguyen is a seasoned clinician with over 22 years of experience, focusing on advanced dental care in implant placement, orthodontic treatment, and comprehensive dentistry. He is a UCLA alum having graduated in 1996 with a bachelor's degree in Biochemistry. Dr. Nguyen went on to earn his Doctor of Dental Surgery degree in 2000 from NYU in New York City.

Dr. Nguyen is the proud owner of Twin Peaks Dental along with his wife Dr. Ly. To better serve the residents of Lake Forest and the surrounding communities, Dr. Nguyen completed advanced training in Implantology and Orthodontic Treatment, including traditional braces and Invisalign.  Dr. Nguyen takes great pride in providing the highest value in dental care, and that means taking his time to ensure any restoration is precisely placed for maximum esthetics and patient comfort. 

Dr. Nguyen is an active member of the CDA, ADA, and OCDA.  When he is away from his office, he enjoys spending time with his family, surfing, and hitting the basketball courts. 

Dr. Oanh T. Ly


Dr. Oanh T. Ly (pronounced Oh-Anne), has over 22 years of experience, providing her patients with the utmost sincere, ethical, and professional dental care. She received her Bachelor's Degree in Biological Science from UCLA but quickly adopted the Trojan way when she earned her Doctor of Dental Surgery degree from USC in 2000. 

Having lived in Southern California for practically her entire life, it was only fitting she opened her practice in Lake Forest soon after she graduated. Dr. Ly feels privileged to have served the residents of Lake Forest continuously for more than 22 years, as many of her patients' kids have become her adult patients. She is looking forward to continuing to meet the next generation of patients and being able to provide a positive influence on their oral and overall health. 

Dr. Ly continues to learn and receive training to better serve her patients. She is an active member of the CDA, ADA, and OCDA. In her spare time, she enjoys cooking, arts and crafts, and running marathons.

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23635 El Toro Rd.Lake Forest, CA 92630Get Directions(949) 951-4885