About Dermatology Staff in Phoenix

The professionals at Stockton Dermatology work to ensure that each one of their patients receives honest answers and advanced solutions. They invite you to read the following medical provider bios to learn more about their practice.

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Alison Peterson PA-C

Alison Schriefer PA-C

“Skin is like a picture, it says a thousand words. It reacts and changes in response to stress, sun, food, allergens, hormones, weather, etc. I love practicing in a specialty where the diagnosis is right before your eyes!”

Alison Peterson is an Arizona native. She earned her Bachelor’s degree in Physiological Sciences from the University of Arizona in Tucson, AZ in 2005. She began her training with Dr. Stockton in the summer of 2009 as a student in the Physician Assistant studies program at Midwestern University in Glendale, AZ. She earned her degree shortly after and began her career practicing in Internal Medicine/Cardiology followed by a year in primary care. Alison was invited to join Stockton Dermatology in 2011 and she started the practice in November.

Alison enjoys training in both medical and cosmetic aspects of dermatology including treatment of acne, biopsies, laser treatments, and Botox. Her family has proven to be the best practice patients and they love the results!

Contact Us!
Stockton Dermatology offers aesthetic services in Phoenix, AZ. Call us today at (480) 610-6366 to schedule an appointment.

Karli Vierra PA-C

Karli Vierra PA-C

Karli has been with Stockton Dermatology since the Fall of 2016. She enjoys all areas of dermatology including management of acne, psoriasis and skin cancer. She brings experience from primary care, general surgery and vascular surgery.

Karli has been practicing aesthetic medicine since 2013, and enjoys helping patients age gracefully with injectable treatments. She received her master’s in physician assisting in 2010 from A. T. Still University, and graduated with honors from Southern Oregon University with a bachelor’s in chemistry.

In Karli’s spare time, she enjoys spending time with her son, traveling, scuba diving, reading and dancing.

Laurie Evans Licensed Aesthetician

laurie evans

‘As an Aesthetician, I am able to consult patients about their skin concerns and come up with solutions that really work. Giving someone back their confidence is priceless! ‘

Laurie Evans, a certified laser technician, and licensed aesthetician is a California-native who moved to Arizona in 2004.

Evans has been with Stockton Dermatology since 2008, and has received extensive education and extensive training from working directly with  Dr. Stockton.  In addition to her work at Stockton Dermatology, Evans has been a Clinical Aesthetic Device Trainer for Genisis Biosystems at the International Association for Physicians in Aesthetic Medicine since 2011.

Evans is certified by the Arizona Radiation Regulatory Agency as a Laser Safety Officer, and as a Laser Technician who specializes in lasers, radio-frequency, and light-based therapies. Evans has garnered a strong aesthetic background working with a variety of skin conditions like Rosacea, Melasma, sun damage, acne, scarring, wrinkles, stretch marks, leg veins, skin laxity and textural irregularities. Additionally, Evans has been treating Psoriasis, Vitiligo and other medical skin conditions with Excimer UVB laser since 2009.

At Stockton Dermatology, Evans offers patients a wide variety of skin care treatments. Among the most popular procedures are: Intense Pulsed Light (IPL) Photo Facials, IPL Permanent Hair Removal, Fractional Laser Resurfacing, Collagen Induction Therapy (Micro-needling), DermaFrac (Micro-needling with Peptide Infusion) Epidermal Leveling, Fractional Laser Scar Revision, 1064Yag Leg Vein Reduction,  Isolaz and LED therapy for acne,  Fractora Firm for skin tightening, and Radio Frequency Body Contouring and Cellulite Reduction .

Debbie Jeska Licensed Aesthetician

debbie jeska

‘I truly feel blessed to be a part of a group that is so passionate about the largest organ of the body. The dedication and continuous research on advanced technologies make this practice a place I am proud to be part of.’

Debbie Jeska, a licensed aesthetician, and certified laser technician moved from Minnesota to Arizona in 1998.

Struggling with acne, eczema, and scleroderma is a personal battle for Jeska and her family. She’ll be the first to tell you that she appreciates effective treatments that yield effective results.

In addition to providing the standard aesthetic services, Jeska also provides a variety of treatments that can help reduce chronic skin conditions, improve unwanted scarring, texture, and laxity by creating customized solutions in order to achieve her patients desired results.

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Christina Alexander Practice Administrator


Stockton Dermatology’s Practice Administrator, Christina Alexander has thirteen solid years of management since the opening day, November 1, 2000, and over twenty-five years of management overall. She is an accomplished leader with extensive medical experience from working in the ER, Pediatrics, Internal Medicine, Nephrology, OB/GYN, Cardio-Thoracic-Vascular Surgery and Family Practice settings. She also represents Stockton Dermatology on the Board of Directors for the ADA/M Group (Association of Dermatology Administrators/Managers).

Christina prides herself on facilitating high-performance amongst the twenty plus employees she supervises. Her professionalism and diligence foster a quality-driven, superior customer service experience for both patients and business associates.

Contact Us!
Stockton Dermatology offers aesthetic services in Phoenix, AZ. Call us today at (480) 610-6366 to schedule an appointment.