Our Team

10-4 Medical Team

The 10-4 team is comprised of exemplary experts supporting our mission and is led by 10-4 Medical Advisor Dr. McCrary.  His Physician expertise and extensive experience in Occupational Health, in conjunction with the vast experience his staff have, make 10-4 Medical invaluable for First Responder healthcare. 

Dr. Brian F. McCrary

DO, MPH, F.A.C.O.E.M., F.A.C.P.M., F.A.O.C.O.P.M.
CWS Board Certified Occupational & Aerospace Medicine, Undersea, & Hyperbaric Medicine

Medical Advisor, 10-4 Medical

Dr. McCrary earned a B.S. in Psychology from Arizona State University, a Doctorate in Osteopathic Medicine from Des Moines University, and a Master’s in Public Health from the University of Arizona. Additionally, he carries multiple Board Certifications, is a certified wound care specialist, and is a Fellow of the American College of Occupational and Environmental Medicine. A retired US Air Force Colonel and former consultant to the Air Force Surgeon General in Hyperbaric Medicine and Wound Care, Dr. McCrary’s vast Post-Graduate Coursework includes the U.S. Air Force and U.S. Army Flight Surgeon Courses.

Dr. Stefanie Lundell


Board Certified Occupational Medicine Physician, Medical Review Officer

Dr. Lundell earned her Bachelor’s degree in Chemistry from Mills College in 1980, and her Doctor of Medicine at Albert Einstein College of Medicine in 1984. In 1993, she earned her Master’s degree in Public Health from the University of Arizona.

She brings additional respect for the demands in responding to emergencies and incorporates this into her care of the men and women who serve as First Responders, from her having had to triage, stabilize patients in the field, lift and load patients, and then drive the ambulance as a former flight surgeon for the USAF.

Dr. Lundell is Board Certified in Occupational and Environmental Medicine. In addition, she is an AZ POST exams Certified Physician; a CDL exams NRCME Certified Examiner and a Medical Review Officer (MRO) Certified Physician. In the private sector, Dr. Lundell served as the Chief Resident during her specialty training in Occupational and Environmental Medicine at the University of Arizona Health Sciences Center, and later as a Clinical Associate Professor. For 18 years she served as an Occupational Medicine Physician at WellAmerica, later known as Evolve Tactical Occupational Health. Dr. Lundell’s commitment to First-Responder care stems from members of her extended family in fire service and law enforcement. After smoke inhalation and chemical exposures, her father-in-law was in poor health as he retired from fire service. Her drive is to ensure First Responders have their health during their careers, and the health to enjoy their retirement.

Amber Norris


Family Nurse Practitioner

Ms. Norris started in the field as a medical assistant, working as a nursing technician in the hospital systems in Tucson. She earned her Bachelor’s degree in Nursing from Grand Canyon University. She obtained a Master’s degree in Nursing from Brookline College in 2015, and her second Master’s degree in Nursing, Family Nurse Practitioner from Grand Canyon University in 2019. She has experience in ICU, Labor and Delivery, Hospice, Rehabilitation, Education and Psychiatric nursing. After a residency at El Rio Community Health in primary care, she now works as a Nurse Practitioner in Occupational Health for First Responders. As the front-line for 10-4 Medical, Norris handles specialized testing, pre-employment exams, annual wellness exams, DOT exams, preventative care, injury management and chronic medical conditions to ensure optimal health and wellness.

Ms. Norris’ passion for improving quality care for patients is evidenced in her commitment to furthering her own education to better serve patients. The wife of a police officer, her drive has always been to provide complete care to First Responders with a focus on primary care, psychiatric care and occupational health available under one roof. Ms. Norris founded “Back the Blue Southern Arizona” and has actively participated in many events for First Responders.

Briana Cuestas


Licensed Associate Counselor

Briana is a Tucson native who started her career in behavioral health volunteering for Pima County Victim Services while taking classes at Pima Community College. She received her Bachelor of Science in Psychology from Northern Arizona University and received her Master of Science in Professional Counseling from Grand Canyon University. While Briana specializes in trauma with a Post-Master’s Trauma Certificate from Grand Canyon University, she also has worked with various other populations. She brings experience with crisis intervention, general mental health, substance abuse and has worked in both outpatient and inpatient settings. Briana uses Cognitive Behavioral Therapy, EMDR and Person-Centered approaches to assist clients through their healing.

Stephanie Valencia

Clinical Office Manager & Medical Assistant

Ms. Valencia graduated as a Medical Assistant in 2009 and received her EMT certification in 2014. Stephanie completed her prerequisites for Nursing in 2019 and is working towards her RN. Ms. Valencia has an extensive background with almost 12 years working in occupational health with a focus on first responders. She is a certified trainer and collector for DOT drug screening and Breath Alcohol Testing. She is trained and skilled in phlebotomy, injections, and IVs. In addition, she works closely with different Peer Fitness trainers and is well versed in agility testing for firefighters. Ms. Valencia is knowledgeable with the fire departments and other First Responder agencies in Southern Arizona. Married to a firefighter with Tucson Fire, she has a passion for providing health and safety for those who protect and serve.

Anthony Gonzales

Director of Education

Anthony Gonzales served his community as a firefighter for the City of Tucson, retiring as a Fire Captain. He currently services as an Arizona Dept. of Emergency Management instructor specializing in hazardous materials. After retirement, he worked for two years with Carondelet Health Services as an Emergency Medical Services liaison, providing key support to all EMS/Fire-based providers and education/instruction for all Fire/EMS providers.

Mr. Gonzales is currently pursuing his Bachelor’s degree in Emergency Management from Grand Canyon University with an expected graduation in December 2021. He is an active member of his community and seeks opportunities that fulfill his purpose to have a positive impact on First Responders in the field through education.