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About Us

Stay Smiling, Stay Connected

We work hard so your dental appointment is as easy and convenient as possible. It is our job to make sure you are comfortable and happy with your experience, every time. When you walk into Birch Dental, you will feel the difference in the atmosphere. Our office feels like an off-site workspace, where you can keep your day moving without your appointment holding up progress. We provide a comfortable, relaxing space for all our patients to get the most amazing smiles, comfortably. Our team is gentle, honest and values every patient no matter their needs.

We are honored you chose us. Welcome to Birch Dental!

Meet Our Dentists

Dr. Justin Hsieh

Dr. Justin Hsieh spent his childhood years in Taiwan and came to the US when he was 16. He is trilingual, speaking Taiwanese, Mandarin, and English. His passion for dentistry runs deep, his great aunt was the first female dentist in Taiwan, graduating from Tokyo University Dental School. Dr. Hsieh is passionate about his work and brings a level of professionalism to the Newport Beach dental community on par with the best of the best. He believes in strong leadership, loyalty and compassionate care. He and his wife Iris work together in the practice and welcome patients like they welcome friends into their home. Birch Dental is the culmination of years of hard work and big dreams.

As a graduate of the University of California, San Diego and Boston University, Dr. Justin is an academic powerhouse. He went on to complete a one-year post-doctorate implant focused residency at the University of Texas, Houston. Since then he has completed the GIDE/UCLA advanced program in implant dentistry and the Invisalign® advanced certification program.

Dr. Justin is serious about dentistry, but full of fun outside the office. He loves to play Legos with his kids and just took up skateboarding after taking a few years off. If you get the chance, ask him about his band, Boba Monkey. He is also committed to giving back, partnering with local nonprofit groups.

Birch Dental is conveniently located in the heart of busy Newport Beach, Dr. Justin wants to be the place busy professionals go for their dental care. He caters to people who need high-quality care while staying connected to work.

Dr. Justin can’t wait to serve the people of Newport Beach, Newport Coast, Irvine, Tustin, and Costa Mesa.

Meet Our Team

Iris Lee

Office Manager

Iris was born and raised in Taiwan but fell in love with the United States when she visited with her parents as a 9-year-old. She returned to the US as an international student at age 16 and went on to earn a Master of Science in Biotechnology at University of California Irvine and an undergraduate degree in Biological Science from University of California Riverside.

Iris grew up watching her parents work together as a team to run her father’s medical practice in Taiwan. This gave her confidence that she could assist her husband Dr. Justin in running his dream practice with all the knowledge and experiences her parents passed down to her. Though her professional background is more scientific, Iris welcomes this opportunity to explore her abilities as the office manager for Birch Dental.

Iris and Dr. Justin dated for nine years before they were married, and they are now the proud parents of a 5-year-old daughter and 2-year-old son. In her free time, Iris loves doing arts and crafts, making cute toys and houses out of boxes for her kids to play. She also loves taking photos for her family and friends.

Iris says: “I am working and raising two kids, so I understand how tough it is to look after yourself, but our health is very important. We have to be there for our loved ones, and I will do my very best to make sure you are healthy and connected to your work and family at the same time!”

Bethany Hayes

Front Desk

Bethany spent her early life in the San Fernando Valley. Her family moved to Orange County when she was 13, and she has made it her home ever since. Bethany graduated from the Academy of Art University in San Francisco with her Associate degree in Fashion Design. She worked as an administrative assistant for three years and managed her own retail store for two years before returning to school to pursue a dental career. Bethany is bilingual in English and Spanish and is also trained in CPR.

Bethany loves problem-solving and meeting new people. She knows that patients are anxious about going to the dentist, so she goes the extra mile to make them feel comfortable and at home during their treatment and office visits at Birch Dental.

Bethany and her husband are a military family with two daughters and a son. The family relocated often over the last several years and decided to return home to Orange County when Bethany’s husband retired recently. They love to spend time together as a family, and their favorite group activity is to watch movies together and eat popcorn. Bethany also loves to travel, find new restaurants, read self-empowerment books and ride bikes with her kids.


Brenda Serratos

Dental Assistant

Brenda was born and raised in Santa Ana as the oldest of six kids who, she says, “are all so different, making our household crazy but fun”. Brenda loves her family very much and appreciates her parents for raising and creating such a supportive and loving family that enjoys any time that they are all able to spend together.

Brenda graduated from Cypress College as a Dental Assistant and holds additional certifications in CPR and Radiology.  She loves coming into work and seeing the rest of the Birch Dental team ready to work together to assist patients and make sure they all leave with a big smile.

In her spare time, Brenda likes spending time with her dogs, family, and friends, as well as making some “me time” for herself so she can just relax for a while.

In closing, Brenda says, “Your smile is your superpower!”

Ready for a New & Improved Dental Experience?

Birch Dental is ready for you too. We’ve got your blanket and custom music playing. We can’t wait to see you.

Birch Dental Map Directions

Front Desk Available

Mon 8am - 4pm
Tue 11am - 7pm
Wed 8am - 4pm
Fri 8am - 4pm
Sat 9am - 4pm

5140 Birch Street Suite 100
Newport Beach, CA 92660
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