May M. Chang, DDS
Creating Beautiful Healthy Smiles

Meet The Staff

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.

Debra Henry

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.

Heather Howell

I am proud to have joined Dr. Chang's dedicated team as the newest member and office administrator. I have been here since September 2019. I delight in interacting with her amazing patients and make them feel welcome and cared for.

I am a Northeast Portland native and studied at Oregon College of Art and Craft. I have two lovely children whom I have instilled my love of travel, hiking, and the Pacific Northwest. I am an avid reader, community volunteer, enjoy ballet, gardening and learning to play my double bass.

Phuong Dao

My name is Phuong Dao.  I have been practicing dental hygiene for Dr. Chang and a specialty periodontal office since 1997.  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.

Brooke Boumann

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 since 2005 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.

Tiffany Berggren

My name is Tiffany Berggren. I am one of Dr. Chang's assistants. I joined Dr. Chang's team in 2005. I grew up in Battle Ground, Washington and reside in Salmon Creek, Washington. I have one son that I enjoy spending time with. I also enjoy the outdoors, biking, working out and spending time with my family. I am proud to work with Dr. Chang and Dr. Mistry.


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