May M. Chang, DDS
Creating Beautiful Healthy Smiles

Meet the Staff | Portland, OR | May M. Chang, DDS

Our exceptional, friendly staff is our greatest asset. Our dental assistants and hygienists are licensed professionals who pride themselves on staying on the cutting edge of dentistry and patient communication. They are excited about what they are doing, have high standards of quality and integrity, and are motivated to achieve the best results for our family of patients.

Our dedicated and motivated staff has one primary goal—your utmost comfort! We feel it’s important that you understand the treatment that you’ll be receiving so that you can relax during the procedure. Our staff is eager to answer any questions regarding your dental care. Please feel free to share with us your needs and concerns.





My name is Phuong Dao.  I have been practicing dental hygiene for Dr. Chang and a specialty periodontal office for the past 15 years.  I did my training locally at Mt Hood Community College and went to Franklin High School before that.  I've enjoy being in the same practice and treating the same patients over the years and now I am proud to say I see the second generation of patients here.  It is really rewarding growing old with our practice and our patients.  I love seeing a healthy smile and am encouraged to see our patients motivated to take care of themselves.   One of my patients refer me as his "gum gardener", which surely is how I feel some days.  I like spending my free time with my husband and my twin boys.  My hobbies are reading, traveling and camping.


My name is Debra Henry.   I am the office administrator for Dr. Chang.  I was born and raised in Portland and graduated from Wilson High School. I have been married to my best friend Tyrone since 1995.  My hobbies include traveling, bible reading and gardening. 
I have been in the dental field for 20 plus years and have been with Dr. Chang since 2006.  Believe it or not, I am considered one of the newest  employees.  I am proud to be part  of our dental team.   We are one big happy family.  What has made my job so enjoyable here is the special friendships I have formed throughout the years with our patients.


I am Dr. Chang's assistant, Pamela Beebe.  I have enjoyed a career in dentistry since 1986, graduating from PCC and attending OHSU for continued education and study. Through dentistry I have been able to do what I love and help people on a very individual basis. I have been with Dr. Chang exclusively for 5 years. We have studied together through our Tucker Gold study club at OHSU.  I grew up and raised my children in Battle Ground/Vancouver, Washington. I love back packing with my friends and family, camping, crochet, reading, dinner parties and trivia.


Greetings! My name is Brooke Boumann.  I am one of Dr. Chang's dental hygienists. I have been a part of Dr. Chang's family practice for the passed 9 years and have enjoyed continuing to grow and learn as a hygienist here.  I grew up near Battle Ground Washington and it was in my last few years of high school where I discovered  my interest in dental hygiene. Inspired by my aunt, whom had practiced for many years as a hygienist, I followed in her foot steps and in 2005 graduated from Colorado Northwestern Community College. A few months later I was warmly welcomed into Dr. Chang's practice and have been here ever since. It has been a pleasure being a part of such a great team and providing care and education to our patients. It is rewarding to me to provide patients with a fresh smile and to build caring relationships with those that I have been treating for nearly a decade. I live in the Milwaukie area and enjoy an active lifestyle shared with my wonderful husband and sweet little girl. We spend our time camping, hiking, reading, and traveling.






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