Meet Your Peterson Family Orthodontics Team

San Tan Valley Orthodontics


Office Guru

Kathryn works her magic behind the scenes at PFO. She is super lucky because she gets to hang out with Dr. P. both at work and at home with their four adorable kids.

She enjoys cooking, baking, playing the harp, and spending time outdoors, although you can most often find her in her minivan living the life as a soccer mom!

IMG_9995 - Kathryn Peterson


New Patient Ninja

Nichelle will become your best friend and spoil you with prizes and cookies on your first visit to PFO! She is an Arizona girl married to her favorite person in the world. They have 5 kids and 2 dogs.

A Certified Personal Trainer, Nichelle loves all things fitness including Orangetheory, Powerlifting, and Pickleball. She likes to decorate fun and unique cakes for her family. Some of her favorites have been a unicorn, a chicken, a skateboard, and even a pickleball court!



Insurance & Finance Extraordinaire

Tionna is our expert on all things financial! She loves spending time with her husband and family going on road trips, hiking, mountain biking and trying out new restaurants. She loves movies, especially Disney movies and Marvel movies! She enjoys baking, coloring, painting and any kind of craft project. She's also very big into Nail Art and always has different designs on her nails.



Director of First Impressions

Samantha is the first smiling face you'll see when you walk through our doors. She was born and raised in Mesa and is excited to be getting married soon! Her dream would be to live in a tent in the middle of the forest for the rest of her life.

She was stung by a Portuguese Man of War (Bluebottle) in Hawaii the first time she stepped in the ocean and had to take a shower in vinegar! She loves Bruce Willis movies and camping, hiking, and hanging out with her family.

San Tan Valley Orthodontics


Lead Smile Specialist

Chelsea is one of our awesome orthodontic assistants! She is originally from Yucaipa, California, and now lives here with her husband and two kids. Chelsea loves Sushi and is a certified scuba diver. She enjoys taking care of her garden, 15 chickens, 2 goats, 3 dogs, and 7 fish. Her family is always talking about their next pet!

Morgan - Kathryn Peterson


Smile Specialist

Morgan hangs out with Dr. P as an orthodontic assistant. She likes going camping, spending time with family, and baking. She's the middle of three girls, and together with their mom they are the best of friends!

A jack of all trades, Morgan has done gymnastics, danced, and played volleyball. Her favorites foods are enchiladas and fajitas. She is a true Arizona girl, as she has lived in Arizona her whole life!

Julie - Kathryn Peterson


Smile Specialist

Who’s sweeter than PFO cookies and lemonade? It’s our clinical assistant Julie! She keeps both the back office and Dr. Peterson organized to perfection. Her specialties include helping you choose the perfect color of bracket ties, clipping your wires just right, and giving sage advice about how to overcome those sore teeth after an adjustment.

Julie enjoys baking, gardening, and spending time with her husband and kids. If she’s ever missing from the office, chances are you can find her in Sedona watching Seven Brides for Seven Brothers on repeat.

IMG_0768 - Kathryn Peterson (1)


Smile Specialist

Jamie keeps everything running smoothly back where all the magic happens! She keeps us all laughing with her infectious high energy. She's been married to her high school sweetheart for 22 years and is a dance and pom mom to a beautiful daughter. She loves to travel and has been on over 30 cruises! She is obsessed with Stoney Clover Lane and loves Christmas and making homemade chocolates.