Meet the DoctorsPhoenix Dentists Open 7 Days a Week!

All our professionals at Smile For Life Dentistry maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry.

Spencer D. Peoples, DMD


Dr. Spencer D. Peoples is originally from Grosse Pointe, Michigan and has been in Arizona for 30 years in 2018! After graduating from New Mexico State University, he attended the University of Pennsylvania School of Dental Medicine, one of three Ivy League dental institutions. Following this, Dr. Peoples completed a one year general practice residency at the University of Nevada - Las Vegas School of Dental Medicine where he gained additional training in several specialities including anesthesiology, endodontics, periodontics, and oral surgery, among others.

Dr. Peoples has been practicing in Arizona for nearly 10 years and is highly skilled in a wide range of dental treatments and procedures, from full mouth reconstruction and smile makeovers to Invisalign, implants, root canals, extractions, and same-day inlays, onlays, and crowns milled right here in the office. Continually seeking to hone his expertise, Dr. Peoples is extremely active in attending various continuing education opportunities. He is currently a member of several dental organizations including the American Dental Association, the Arizona Dental Association, and the Academy of General Dentistry.

Dr. Peoples prides himself on excellent patient care that not only meets, but exceeds expectations. He respects his patients and understands that everyones’ oral health needs are different. Dr. Peoples will always listen and create a personalized treatment plan designed to address the goals and unique dental health of each patient.

Dr. Peoples is married to his beautiful wife of five years, Megan, has two young daughters, Faith and Bella, and one awesome Vizsla (or dogter as the family likes to call her), Savannah! In his spare time, Dr. Peoples enjoys Scottsdale Bible Church, cooking, exercise, and any outdoor activities that keep him active with his family.

Dr. Peoples usually sees patients Sundays, Mondays and Tuesdays.

Book an Appointment

Chia Y. Wu, DMD

Dentist / Co-Founder

Dr. Chia Wu is originally from Taipei, Taiwan. Her parents moved to the U.S. when she was very young and raised her in southern California. She attended the University of California, San Diego where she received her B.S. in Physiology and Neuroscience in the beautiful town of La Jolla. It was at UCSD where she volunteered as an assistant at a free dental clinic run by pre-dental students to provide care to those less fortunate. This work inspired her passion for dentistry and led her to pursue her Doctorate of Medical Dentistry (D.M.D.) from Temple University, Kornberg School of Dentistry in Philadelphia, PA., which she earned in 2007.

Being a firm believer in advancing her education to the highest level, she received further training in the care of patients with complex medical conditions and advanced dental restoration challenges at a two-year general residency at New York Hospital of Queens in Flushing, NY. Here she received training in a variety of other areas of dentistry including oral surgery, periodontics (gum health), pedodontics (child dentistry), endodontics (root canal therapy), and implant dentistry.

As a leading family dentist and Oral Appliance Therapy provider in Phoenix, AZ, Dr. Wu continues her education today by frequently completing advanced coursework in cosmetic and restorative dentistry, orthodontics (both invisible braces and brackets/wires), Oral Appliance Therapy for sleep-related breathing disorders including sleep apnea, and implant restorative dentistry to make sure her patients not only receive the most up to date quality care but also receive the education they need to understand their oral health conditions. She is an active member of various dental organizations, including, the Arizona Dental Association, Academy of General Dentistry, Central Arizona Dental Society, and the American Academy of Dental Sleep Medicine.

Away from work, Dr. Chia Wu enjoys working out at her crossfit gym, cooking various types of ethnic foods, and most importantly, spending time with close family and friends.  She is married to Smile for Life's Co-Owner and CEO, Brandon Quijada.

Dr Wu usually sees patients Wednesdays and Thursdays.

Book an Appointment

Dr. Jonathan Minyong Pak

Dr. “Jonathan” Minyong Pak was born in Seoul, Korea and came to America as a 5 year old child in 1974.

He was raised and educated in Southern California. He graduated from La Salle High School in Pasadena, CA. It’s a Christian Brothers preparatory school that is actively involved in fostering leadership, and encouraging civic involvement in the community. He was involved in campus ministry, while attending the school, and participated in community events such as the Tournament of Roses and Boy’s State.  
Jonathan received his bachelor of science in Biological Sciences from UC Irvine. While attending there in his junior year, he decided to pursue a dental career, after volunteering at the “SOS” (Share Our Selves) Dental clinic in Costa Mesa. He received his doctorate of dental surgery from UCLA School of Dentistry in 1996. Jonathan went through extensive training in esthetic dentistry while there. He still enjoys designing and crafting a beautiful smile to this day.  
Jonathan is licensed to practice in AZ, NV, and CA. He’s been a member of the American Dental Association since graduation. He’s had dental offices over the years in San Francisco, Reno and Las Vegas. Dr. Pak is certified to provide “Invisalign” treatment, laser treatments, and is trained to place implants.
Jonathan lives in Clark County, NV with his wife and 4 chihuahuas. He and his beautiful bride love to travel. Their favorite spot on earth is Lahaina, HI. Mahalo.

Thomas Nguyen, DDS


Dr. Nguyen is originally from Vietnam and grew up in California.  He earned a bachelor's degree in Microbiology at the University of California at Davis and worked in the biotech industry for a year before attending UCSF School of Dentistry where he was awarded his D.D.S. degree.

Dr. Nguyen holds licenses in both California and Arizona and is a member of the American Dental Association (ADA).  He performs all aspects of dentistry but enjoys cosmetic, implant and removable prosthetic dentistry the most.  He is a compassionate dentist who strives to reach the most ideal solution for patients' dental needs.

Outside of dentistry, he is an avid fan of the outdoors and enjoys camping, hiking, hunting, fishing and mountain biking.

Book an Appointment

Stacy Casarez, RDH

Registered Dental Hygienist

Stacy Casarez is one of our Registered Dental Hygienists. She is originally from Orange County, California, moving around as an army child and finally settling in Arizona about 6 years ago. She is a 2017 graduate of Fortis College - Phoenix. Stacy is dedicated to the total patient experience, serving each patient with the compassionate care they deserve. She treats every patient like a member of the family. Her heart is in providing care to those living with special needs especially those with high anxiety.

Stacy dedicates 100% to her patients!

She enjoys enjoys relaxing with her husband, Gilbert and two children during her much deserved down time. Mother of 2, Raymond (10) and Mckynlee (4) as well as her two fur babies, Bingo and Diesel, she has her hands and heart full. 

Stacy usually sees patients Monday, Tuesday and Thursday, with occasional Fridays.

Book an Appointment


Patient Care Manager

Steven graduated from Grand Canyon University with a Bachelor's of Science in Health Care Administration. Steven was born in the state of California and raised by his hispanic parents in Yuma, Arizona. His passion for the dental field has guided him to many management roles in various successful dental practices. Steven's experience in the dental field and marketing makes him a key asset to any dental team. He plans to further his education by pursuing his Masters in Business Administration. Working with top-notch dental offices valley wide; Steven showcases his outstanding work ethic, drive and talent with every patient. His goal is to provide the highest level of customer service to all his patients and ensure the best quality of dental care is achieved. When Steven is not in the work place or furthering his education, he enjoys traveling to exotic locations, photography, and spending time with his family. He values learning about different cultures and traditions across the world. Steven strives for every patient to “Smile for Life”.

Book an Appointment

Book an Appointment

Contact Us Today

Rate, Review & Explore

Social Accounts Sprite

Phoenix Office

10209 North 35th Ave.
Ste 129
Phoenix, AZ 85051

Open Today 7:00am - 8:00pm