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.

Alison Peterson PA-C

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“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 a board-certified Physician Assistant. She earned her Bachelor’s degree in Physiological Sciences from the University of Arizona in 2005 and her Master’s of Medical Sciences in Physician Assistant Studies (M.M.S) from Midwestern University in 2009.

Alison had the opportunity to train with Dr. Stockton as a student in the summer of 2009. After 2 years of gaining experience in internal medicine, cardiology, and primary care, she was asked to join Stockton Dermatology in November of 2011.

Dermatology is Alison’s passion. She loves educating patients on sun protection, acne and general skincare, skin cancers, benign skin growths, and more. Alison is trained in minor surgical and cosmetic procedures as well as Botox.

Alison is an Arizona native and the desert is her home. When she is not working she is enjoying time on the same block that she grew up on which she shares with her husband, daughter, and immediate family.

Contact Us!
Stockton Dermatology offers aesthetic services in Phoenix, AZ. Call us today at 480.610.6366 to schedule an appointment.

John J Shaff PA-C, DFAAPA

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John is a board-certified Physician Assistant. He received his Bachelor of Science in Exercise Physiology from Northern Arizona University in 2001 and his Master’s degree in Medical Science, Physician Assistant from Midwestern University in 2004. Since then, he has been certified by the National Commission on Certification of Physician Assistants. In 2011, he also received surgical specialization, CAQ.

Since his graduation from Midwestern, John has worked in general orthopedics and trauma, hand surgery, and for the last several years, Dermatology. Although he has always loved surgery, he realized he had a newfound passion in medical and surgical dermatology. In 2017 he accepted a job offer to train in dermatology and loved the opportunity to take care of even more patients and their skin issues. John has a particular interest in the detection, treatment, and prevention of skin cancer and other dermatology conditions.

Having been a patient himself, and survived a brain tumor, John has used his experience to become a compassionate health care provider and has earned the respect of his patients for his caring bedside manner. He is also active in the community, volunteering for sports teams and providing physicals to athletes through Team of Physicians for Students (TOPS). He also currently serves the State of Arizona on the Regulatory Board of Physician Assistants.

John is a Past President of the Arizona State Association of Physician Assistants. He is also a member of the American College of Surgeons, Society of Dermatology Physician Assistants, American Academy of Physician Assistants, Arizona State Association of Physician Assistants, and the Arizona Dermatology Physician Assistant Society.

John resides in Phoenix with his wife and two boys. In his free time, he enjoys triathlon, running, playing and watching most sports and spending time with his family.

Laurie Evans Licensed Aesthetician


‘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

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‘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.

Cheryl Mennella RN, BSN Aesthetic Nurse Injector

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Upon relocating from Illinois to the Phoenix area, Cheryl joined Stockton Dermatology in 2019. She brings with her 12 years of experience performing aesthetic laser treatments, cosmetic injections, and working as an operating and recovery room nurse for a plastic surgery practice in Geneva, Illinois. Cheryl believes it takes an artistic eye, a strong knowledge base, and a great injection technique to achieve great results when working with cosmetic injectables. She has a proven history of establishing trusting relationships with her patients and enjoys making people feel better about themselves inside and out.

Originally from Ohio, Cheryl graduated from Kent State University with a Bachelor of Science in Business Administration with a major in Marketing.

After working for EJ Brach Corporation (the makers of Brach’s candy) in their Marketing Department, she felt a change of heart and decided to enter the medical profession. She graduated from Rush University in Chicago with a Bachelor of Science in Nursing and is a Registered Nurse. She worked as a staff nurse on a Medical/Surgical Unit prior to working for the plastic surgery practice.

In her spare time, she enjoys traveling, biking, exercising, hiking, gardening, and spending time with family and friends. She is a member of the International Society of Plastic and Aesthetic Nurses.

Erika D Cárdenas Pharmacy Technician

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Erika D Cárdenas CPhT, has been with Stockton Dermatology for 9 years.

She became a Pharmacy Technician and runs our in house dispensary. She takes pride in her position, working alongside the medical providers, in helping patients navigate their health insurance, to obtain the medications prescribed.

She is native to Arizona. She lives here in Ahwatukee with her wife and daughter. She enjoys travel, music and spending time with her family. Erika graduated Mountain Pointe H.S. Went on to Northern Arizona University as a Micro-Biology major, before switching to her passion for helping others, and is currently seeking a Bachelor’s degree in Nursing. She hopes to complete the Bilingual Nursing Fellowship Program through Maricopa Community colleges and graduate from the University of Arizona, with a BSN.

Christina Alexander Practice Administrator

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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.

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Dermatology in Phoenix, AZ

Mon, Tues: 7am - 4:30pm
Wed, Thurs: 7am - 5:30pm
Fri: 7am - 2:30pm

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