About AZ Medspa 48

Clinical Expertise. Individual Results

“Looking and feeling your best is all about
manifesting the beauty you feel inside"

We refine your features through specialized wellness and
aesthetic treatments tailored to your unique anatomy.

Our Philosophy

This Is AZ Medspa 48

We don’t believe in changing who you are—we optimize how you look and feel. Using advanced technology and a “Never Templated” approach, we deliver results that are balanced, natural, and entirely yours. From the moment you enter, our focus is on your safety, your comfort, and your specific goals.

Meet the Founder

Stephanie Duffy,
MSN, FNP-BC

Owner & Medical Director

Stephanie is a Board Certified Nurse Practitioner and Medical Director with a Master of Science in Nursing from Olivet Nazarene University. She brings years of expertise in aesthetics, nephrology, and internal medicine.
In 2022, she opened AZ Med Spa 48 to offer a more personal, medical-grade experience.

Stephanie works directly with every patient, providing the expert care required for exceptional outcomes.

Certified Master Injector by:

Liz, RN

Aesthetic Injector

Liz is an Arizona native and experienced Registered Nurse with 9 years of clinical practice and over 11 years specializing in cosmetic injections. She earned her Bachelor of Science in Nursing from Brookline College and completed her advanced cosmetic injectable certification at the National Laser Institute in 2015, along with additional training in advanced aesthetic treatments.

Before entering medical aesthetics, Liz spent four years in inpatient psychiatry, shaping her compassionate, patient-centered approach. She focuses on delivering natural, confidence-enhancing results while ensuring every patient feels comfortable, understood, and supported throughout their aesthetic journey.

We're Committed to Your Best Results

Experienced
Medical Team

Our commitment goes beyond aesthetics, we combine advanced training, gold-standard technology, and rigorous safety standards to deliver results you can trust.

Proven Treatments
You'll Love

Our 5-star ratings say it all. Science-backed treatments that deliver noticeable, lasting results you’ll love.

Patient-First
Care

We don’t follow generic protocols. We listen and create a plan built around you.

Welcome to Our
Wellness and
Aesthetic Center

Our Peoria clinic is designed as a low-volume, high-touch boutique. We’ve traded the busy “waiting room” feel for a more private, modern suite where you can relax and focus entirely on your rejuvenation.

“...real results and
exceptional care.”

"I always felt heard and confident in the plan we created together. I’m so grateful I found this company and highly recommend AZ Med Spa to anyone looking for real results and exceptional care."

–Whitney

“...incredibly knowledgeable,
supportive, and truly cares.”

"Stephanie is incredibly knowledgeable, supportive, and truly cares about her clients’ goals. Whether it’s weight management, injectables, or overall wellness, she takes the time to explain everything and make you feel comfortable and confident."

–Lindsey

“...the results have
been amazing!”

"I've been going to this med spa for a while now, and the results have been amazing! Stephanie is incredibly kind, professional, and truly cares about her clients."

–Elena

“Trusted Guidance for Weight Loss”

"Stephanie has been a great partner in my weight loss journey. She didn’t over-promise anything and has been very supportive. I have seen great results!"

–Kelli B.

“Highly Recommended Med Spa Experience”

"Med Spa advice was thorough and best recommendation for my needs. The micro needling was virtually painless and very professionally done. HIGHLY RECOMMEND Stephanie."

–Linda Y.

“Comfortable and Professional Experience”

"LOVE STEPHANIE!!! She was very informative and gentle. I don’t like needles and she made me feel so at ease. Definitely my new go to girl 💜"

–Baneta A.

“Wonderful Weight Loss Support”

"Stephanie is a wonderful provider, taking her time to educate on weight loss while maintaining a supportive attitude 💕"

–Adriana C.

“Incredible Weight Loss Results”

AMAZING! I went in to just lose 10-15lbs and in 2 months I lost 18lbs. I am off the shot and only gained 2lbs back. I feel amazing and I definitely recommend get the butt b12 shot to help with energy. Stephanie was amazing 👏 and I wish i found her sooner to be as happy as I am now with my weight. Thank you 😊 "

–Tabatha S.

Connect With Us!

Your goals are personal

Your treatment plan should be too