Jonathan D. Tait, D.O.

Physician, Founder

After more than 15 years of training, and several years in practice, Dr. Tait found his true calling in medicine when he made the decision in 2013 to shift his entire practice to a Functional and Regenerative Medicine model. Since that time he has trained extensively with mentors in Functional and Regenerative Medicine. Dr. Tait uses Functional Medicine as the foundation upon which to rebuild each patient’s health. If health is restored and optimized, disease is not present. Regenerative Medicine treatments including stem cell therapy and platelet rich plasma therapy are then able to powerfully nudge the body back into balance by healing ailing and failing tissues in the body. His proprietary PRO-Mend process and unique practice combination of Functional and Regenerative Medicine has transformed the bodies and lives of more than 2000 patients since 2013. Originally from Michigan, with his wife Lisa they have made Tucson their adopted home with son Kaiden, dog Max, and cats Slim and Shady. He serves his community of Tucson first as a regenerative medicine doctor, and now has expanded his reach beyond Southwest Arizona as an author, speaker, health educator and healthcare pioneer.

Dr. Tait is driven to create a ripple effect on millions of people in the United States and around the world by ushering in the much overdue evolution in how medicine and healthcare should be provided through a Functional and Regenerative Medicine model.


Doctor of Osteopathic Medicine, Michigan State University College of Osteopathic Medicine

Residency, Physical Medicine and Rehabilitation, Rehabilitation Institute of Michigan, Detroit, Michigan

Fellowship, Interventional Spine and Pain Management, Rehabilitation Physicians, P.C., Novi, Michigan

Fellowship, Sports Medicine, Virginia Tech, Blacksburg, Virginia


Board Certified, Physical Medicine and Rehabilitation, American Board of Physical Medicine and Rehabilitation

Board Certified, Physical Medicine and Rehabilitation, American Osteopathic Board of Physical Medicine and Rehabilitation

Board Certified, Sports Medicine, American Osteopathic Academy of Sports Medicine

Functional Movement Screen (FMS), Level 1

Selective Functional Movement Assessment (SFMA), Level 1

Certification in Plant-Based Nutrition


In 2012 Dr. Tait authored and published his first book, The Pain Free Diet.

In many cultures in the world, the oldest (and still most current form of medicine), is the food that is consumed daily.

One man’s food is another man’s poison – Lucretius

In the book Dr. Tait explains the powerful impact food can have to heal and regenerate your body, reduce or eliminate pain –  or alternatively how daily food choices can drive pain, sickness, and disease. You will learn:

  • A history of the manipulation of our food from what was once health-promoting to what is now thought to be the driving force behind a true food crisis contributing to the escalating numbers of people living with chronic pain and disease.
  • “Healthy” foods that may not be healthy when it comes to their influence on pain and degeneration of the body.
  • An exact plan, including a month’s worth of recipes, is then laid out to reboot your nutrition to decrease pain and inflammation and put your body on the path to healing.

Learn more about the book, and grab your copy here – > GET THE BOOK

Training Affiliations

In addition to being a doctor at our Tucson regenerative medicine clinic, Dr. Tait is an active member in several groups for ongoing continued education and training annually with world experts in the fields of Functional and Regenerative Medicine.

Bluetail Medical Group, St. Louis, MO – Regenerative Medicine Training and Research Affiliate Network

Living Proof Institute, Toronto, CA – Functional Medicine Mentorship Program

Origins Healthcare, Sugarland, TX – Functional Medicine Mentorship Program

Rejuv Medical, St. Cloud, MN – Regenerative Medicine Training


Associate Research Faculty, Department of Biomedical Engineering, University of Arizona

Consultant, University of Arizona Athletics Department


Hiking, canyoneering, rock-climbing, scuba diving, skiing, traveling, and achieving food enlightenment through culinary experimentation


Dawn Anthony, MS, AT

Medical Care Coordinator, Certified Athletic Trainer

Originally from Pennsylvania, Dawn has called Arizona home since 2012. She completed her undergraduate studies at Slippery Rock University in Pennsylvania where she earned her Bachelor’s degree in Athletic Training in 2004. She went on to earn her Master of Science in Sports Medicine from the University of Pittsburgh in 2007 while working as a graduate assistant athletic trainer with the gymnastics team. Dawn has been a Certified Athletic Trainer since 2005, and previously served as an Area Sports Medicine Coordinator in Phoenix and Head Athletic Trainer for Gilbert Christian High School.

Dawn joined our team in 2015, bringing her unique experience and skill as a Sports Medicine trainer and coordinator, to our practice, where she now is the lead coordinator for patient care. She is your go-to contact in the practice for questions regarding your care and will help guide you down the path towards your best health!


Master of Science, Sports Medicine, University of Pittsburgh

Bachelor of Science, Athletic Training, Slippery Rock University


NATA BOC Certified Athletic Trainer

Arizona Licensed Athletic Trainer


In her free time, Dawn enjoys running, hiking, rock-climbing, and backpacking.




Janet Neustedter

Community Outreach Liaison, Functional Medicine Health Coach, Culinary Wizard

Janet joined our team in 2016. She was raised in the Bay Area in San Jose, CA. She has been married for 30 years and has three grown children. She relocated to Tucson in 2002 with her family when her husband’s work brought them here. The transition was bumpy but she has definitely adopted Tucson as her home. She and her husband are empty nesters with two dogs to keep them busy

She attended college at San Jose State University where she studied psychology. She worked at a high end private fitness and dining club in Silicon Valley for eight years, where customer service was a priority. She has had a life-long passion for cooking and has attended many classes taught by well-known chefs and received several cooking certifications. Furthering her culinary passion, she even spent time in Washington, D.C. interning for Michele Richard in his restaurant La Citronelle

Her other passions for the outdoors, sports, and exercise “landed” her in physical therapy after a bike accident lead to a broken shoulder. The experience was another pivot point on her career path as she stayed on with the physical therapy group as a PT technician in order to help other patients mend from various injuries. She loves to exercise in all forms, is a self-professed podcast junkie, gourmet healthy cooking expert, and avid reader.

Expanding upon her passion to help coach others live an active and healthy lifestyle, she pursued an additional certification as a Functional Medicine Health Coach. In this capacity she will combine her love of fitness and healthy cooking to help our clients and patients live their healthiest and highest quality of life!


Psychology, San Jose State University


Functional Medicine Coaching Academy, Functional Medicine Coach


Janet is also a “certified foodie”, and enjoys all things food and cooking



Gabriella Liace

Clinical Medical Assistant, Certified Phlebotomist

Originally from Portland, Oregon, Gabriella moved to Arizona two years ago to attend the University of Arizona. Now a junior, she is majoring in Physiology and Molecular and Cellular Biology and is involved in biomedical research. Gabriella is on the pre-medical school pathway and aspires to become an epidemiologist.

While in high school, she started a non-profit for Children Affected by Incarcerated Parents to provide an educational resource for families affected by this tragedy.

She is also on the leadership council for her sorority at the University of Arizona.

Gabriella joined Rejuv Medical Southwest to continue her medicine education outside the classroom in an exciting and innovative environment.


Bachelor of Science, Molecular and Cellular Biology, University of Arizona (in progress)


Certified Phlebotomist


Darrian Piper

Front Office Coordinator

Darrian joined our team in July 2018. Originally from Chicago, Illinois, she has called Arizona home since 2000. Heading into high school Darrian had a vision of the life she wanted after graduation from Cienega High School. She planned to follow her father and brother into a career in the military. Her vision came to an abrupt halt her sophomore year of high school. While finishing a Track/Field meet, she had an injury to her left leg. After running a few tests, the doctors determined she had torn the ACL. One doctor from St. Joseph’s Hospital however was not 100% convinced that was the only issue with the knee. After going through more MRIs and tests, the results came back that she had osteosarcoma, a form of cancer, in her left knee.

Blindsided by this horrific news, Darrian began her first round of chemotherapy at Banner-University Medical Center in 2009. Days, weeks and months went by spending what seemed likely to be the rest of her life in the hospital missing out on holidays and birthdays. As an additional part of her treatment she eventually had to have a surgery at Phoenix Children’s Hospital to remove the tumor. Due to the location of the tumor, it was recommended to have a knee replacement. This also was devastating news. Not only cancer, but now she would have to have an artificial knee. Extensive physical therapy followed the surgery but with tremendous pain and inability to straighten the new knee, the doctor’s suspected something may be wrong with the replacement. They decided to press forward with aggressive physical therapy to see if time would fix the issue.

A year later, in 2010, she was granted her Make-A-Wish trip to travel to Disney World with her family. This trip was a much need break away from being in the hospital almost every day of the week, and allowed a distraction from the pain and suffering she was dealing with 24/7. Upon returning she went through several surgeries in attempt to fix her new knee. The last surgery only made things worse. Part of the lower leg became infected. After numerous attempts from her surgeon to control the pain and stop the spread of the infection, Darrian made the most difficult decision of her life. To alleviate the pain and have better function of her leg, she elected to have her leg amputated above the knee. As a young athlete, aspiring for an active career in the military Darrian never predicted this to be the outcome of her battle with cancer. Despite this life-altering event she chose to forge a mindset to be the best person she could be, and not let anything get in her way of a fulfilling life.  After her amputation surgery she never let it stand in her way, and never gave up on her vision to further her education and continue an active life.

She returned to high school and graduated a year ahead of schedule in 2012. She then spent a few semesters at Pima Community College before moving on to pursue her Bachelor of Science in Health Care Administration at Grand Canyon University. While at GCU, she was part of the Future Health Care Administration Club. In her downtime she enjoyed plenty of adventures, going on road trips with her classmates and roommates.

Since the amputation she has gone skydiving three times, has recently received her scuba certification, and she does not plan on stopping there. Although Darrian did not get to join the military as she had envisioned, she strongly believes that things happen for a reason. She chooses to live the best life given to her and is now focused on helping others through their own healthcare journeys.


Bachelor of Science, Health Care Administration, Grand Canyon University, 2017


Traveling, Scuba-diving, enjoying new foods at new places, baking, hiking, water tubing


Sara Anderson

Licensed Nutritionist and Personal Trainer

A licensed nutritionist and personal trainer, Sara has a diverse background in exercise, integrative health, and culinary nutrition. Sara is passionate about motivating, educating, and supporting her clients through their journey toward optimal health with personalized food and lifestyle changes. Prior to moving to Arizona, Sara worked with a team of integrative physicians where she supported patients with a variety of health conditions such as diabetes, autoimmunity, gastrointestinal dysfunction, and weight loss. A Maryland native and Maryland Women’s Lacrosse alumnus, Sara is excited to join the Rejuv Medical Southwest team.


Bachelors of Science, Kinesiology, University of Maryland

Masters of Science, Nutrition and Integrative Health, Maryland University of Integrative Health


Certified Nutrition Specialist

Licensed Dietitian Nutritionist

First Line Therapy

NSCA Certified Strength and Conditioning Specialist

Functional Movement Screen (FMS), Level 2

Original Strength Pro


Strength training, hiking, traveling, exploring farmers’ markets and cooking.


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