Frank Sorrentino, D.C.

Frank Sorrentino, DC, is a chiropractor dedicated to improving the health and well-being of the men, women, and children in this community. Along with his wife, Sarah Peddie Sorrentino, DC, Dr. Frank offers the best in hands-on techniques, state-of-the-art procedures, and effective soft tissue therapies at Grayhawk Family Chiropractic, LLC in Scottsdale, Arizona.

Originally from Hamden, Connecticut, Dr. Frank graduated with a Bachelor of Science in medical rehabilitation from Springfield College in Springfield, Massachusetts. He then earned his doctor of chiropractic degree at New York Chiropractic College in Seneca Falls, New York.

As a former lacrosse player at Springfield College, Dr. Frank has a particular interest and firsthand experience in sports injuries and rehabilitation. He offers expertise in treating many of the most common repetitive motion injuries, including carpal tunnel syndrome. In addition, Dr. Frank is licensed by the State of Arizona Board of Chiropractic Examiners and a certified provider of the Graston Technique®, and manipulation under anesthesia.

Dr. Frank and Dr. Sarah are both avid athletes who enjoy Crossfit and racing in local triathlon, cycling, and running events. When they’re not working or training, they love hiking and enjoying outdoor activities with their two sons, Jack and Luke and chocolate lab Wolfie.

Sarah Sorrentino, D.C.

Dr. Sarah is originally from Toronto, ON, Canada.  In addition to her doctorate degree, Dr. Sarah has a Bachelor of Science in Anatomy and Cell Biology from McGill University in Montreal, QC.  Dr. Sarah has a special interest in women’s health issues, including prenatal and pediatric care. Dr. Sarah has a background as a college synchronized swimmer and is an avid triathlete, completing Ironman Austria in July 2011. She enjoys working with female athletes of all ages.   Her past experience includes working in a multi-specialty pain clinic with a number of different healthcare providers and she can offer this varied clinical approach to her patients.



 New York Chiropractic College (Seneca Falls, NY) Doctor of Chiropractic 2006

 McGill University (Montreal, QC) Bachelor of Science 2003


Licensure & Certifications:

 State of Arizona Board of Chiropractic Examiners

 Graston Technique, Certified Provider

 Webster Technique certified, International Chiropractic Pediatric Association (ICPA)

 Fellow of the International Academy of Medical Acupuncture (FIAMA)

Austin Perrine, D.C.

Dr. Austin grew up in Scottsdale coaching at a CrossFit gym throughout high school and college where he fostered a passion for helping people live their optimum life. This passion lead him to complete his BS in Kinesiology at Arizona State University, followed by his Doctorate of Chiropractic at Palmer West Chiropractic College in San Jose. Dr. Austin graduated in 2021 and obtained a year of clinical experience practicing in Utah prior to re-locating back to Arizona.


Palmer West Chiropractic College (San Jose, CA) Doctor of Chiropractic 2021

Arizona State University (Tempe, AZ) Bachelor of Science 2018



Dynamic Neuromuscular Stabilization (DNS) Certifications – Basic A & Exercise 1

Neurodynamics Certifications – Upper & Lower Extremity 1

OPEX Coaching Certificate Program (CCP)

Karen Atkinson

LMT Massage Therapist

Karen, or ‘Gert’ as she is more affectionately known by her clients, is a Licensed Massage Therapist who has been in practice for over 17 years. Karen attended Montana State University in 1994 and graduated from Phoenix Therapeutic Massage College in 2000. Karen specializes in deep tissue, therapeutic and rehabilitation massage. This includes sports & pregnancy massage as well as reflexology. We are very lucky to have Karen as part of our team! Karen is a native of Montana but has been residing in Arizona for the past 24 years. When Karen is not busy with her massage clients, she loves skiing, golfing, softball, racquetball, swimming, running and competing! She recently completed a 50K trail running race!

Maria Taravella

Billing and Insurance Specialist

Maria is originally from Harrington Park, New Jersey. She graduated with a Bachelor of Science in Hotel Restaurant Institutional Management from Johnson and Wales University in Providence, Rhode Island. Upon graduation, she worked for Marriott Hotels which ultimately brought her to Scottsdale, Arizona. Maria and her husband Lou have a daughter who is a dance major at The University of Arizona. Maria and her family have been patients of Grayhawk Family Chiropractic for many years and she is happy to be part of the team.

Geri Mandel


A native of Nebraska, Geri moved to Arizona 9 years ago with her husband and 2 boys, who are 22 and 15. Some of Geri’s favorite past times are hiking, traveling, reading, shopping, Barre3, Crossfit and spending time with family and friends.

Amy Ricks

Front Desk & Patient Care Coordinator

Amy is our newest receptionist and Patient Care Coordinator. Have any questions or concerns about our office or your treatment? Amy is the one to ask! Amy spent 50 years in Chicago prior to moving to Arizona 3 years ago.

“I received both my undergraduate and graduate degrees from University of Illinois in Champaign-Urbana (Go Illini!) and worked as a Licensed Clinical Social Worker for many years. My specialty in behavioral health has always been working with adolescents and their families. I am also a certified yoga instructor and has taught young student athletes and older adults ways to begin a yoga practice. Thirty years ago, I met a social worker in a teen center in Chicago and we decided on forever. In our free time we enjoy hiking anywhere off the beaten path and traveling to Texas to visit our twins who attend TCU (Go Frogs!)”

Karen Manser

Chiropractic Assistant

Karen is the newest addition to the Grayhawk Chiro team in 2020 and will be assisting with our CorthoX strength program. Karen grew up in Eastern WA State. Karen’s career was in law enforcement where she spent 29 years in the Seattle area and finally retired in 2016. Karen loves to be active and has been involved in several sports throughout her life. However when she was 38 she ruptured a disc in her lower back, which made her become even more passionate about fitness and a healthy lifestyle. Karen has been a patient of Dr. Frank and has been doing the CorthoX workouts herself for the past year with tremendous progress. Karen has trained directly under the founders of the CorthoX method in Phoenix, and we are excited for her to bring her knowledge to our patients! Karen is a certified Chiropractic Assistant and is currently working towards completion of her personal training certification as well.

Rachel Martin

Rachel grew up in Arizona, left for the Midwest for 10 years, and returned in 2020. She loves the sunshine! Her background is in social work and administration. In her free time, she enjoys reading, cooking, and spending time with her husband, 3 kids, and her dog named Socrates.