OUR TEAM

Peter Cashio, MD MS

Matthew Perdue, PA

Rebecca, RN

Jenna, RN

Sandra Wilson

FOUNDER, PHYSICIAN

Peter Cashio, MD MS

US Marine Corps veteran, former USMC Intelligence Analyst, Ninja (for a while at least), Okinawa, Japan resident for two years, UT Austin graduate (“Hook ‘Em”), Drosophila melanogaster geneticist (best model organism EVER), Board certified Emergency Physician (Go ‘Hoos!) and founder of the revolutionary Code 1 Concierge Care Holistic Health Center in Dripping Springs, TX. I love sports with my boys, Japanese culture, science-fiction, firearms, marksmanship, getting strong and fit, first-person shooter video games (Halo, Battlefield, COD, etc), and taking care of other veterans. 

 

            Practicing medicine has been a life-long dream of mine and I’ve been privileged with the opportunity to do many amazing things: drilling holes in patient skulls, participating in brain surgery, shocking people back to life, delivering babies (many in the ER), putting big tubes and IVs into people, and so much more. It’s fair to say that there have been a lot of exciting, “Hollywood”-type moments. And for those who understand the phrase…Yes, you can reach practically anywhere in the human body with a 16-gauge needle and a strong arm.

 

            After more than a decade in medicine and doing great things, it had stopped being fulfilling and had instead become a psychological anchor dragging me (and plenty of other doctors) to the deep and dark ocean depths. While I wouldn’t have listened as a medical student, I’m here to tell you that there will come a time when even those almost unbelievable experiences fail to provide real fulfillment. 

 

            For most medical students who come to the practice of medicine, a huge portion of our motivation was the ability to make people better. As awesome as those experiences had been, I realized that almost all of them were due to poor choices and often poorly informed decisions. So often folks were suffering the consequences of diabetes, obesity, kidney failure, heart disease and failure, and so much more because no physician had ever taken the time to explain things to them in terms that they understood. 

 

            I used to be somewhat notorious for sitting down with patients in the middle of a crazy ER shift. I would "waste" irreplaceable minutes explaining  patients and families what was going on, how it could have been caused, what (if anything) options were available, and (Lord-willing) what the future might look like. Many (so many) patients would tell me some variation of, “My doctor never explained any of this to me before.” 

 

            I eventually came to realize that our current “system” of long wait times,  lightning-fast 15–30-minute appointments never gives patients or their physicians a chance to understand what was going on. Trust me: if you’re a physician then you know that you’re leaving a lot of cognitive understanding regarding your patients behind with such rapid-fire appointments. Physicians no longer have time to “think” in anything more than a superficial way for the vast majority of their patients. It doesn’t matter if it is a Primary Care doctor, ER physician, or specialist of any sort. Doctors must meet various “quality” metrics which, sadly, do not include time spent with the patient, except if it is “too much” time. 

OTHER DETAILS

 

     I was born in Baton Rouge, LA but the family soon moved to Houston, TX, and then another move to Southern California just before starting High School. I had a great time in SoCal: I learned to surf, ski (heh), work with my hands, attend Boy’s State, drive a car and wonder why the 91 Freeway never went anywhere quickly. After graduation, I turned down a full ride Chemical Engineering scholarship and instead enlisted in the US Marine Corps. The Marine Corps became my tribe and Virginia Beach, VA, Okinawa, Japan, and Camp Pendleton, CA all turned out to be amazing places. 

 

     Following the Marine Corps, I headed to college and decided that I wasn’t quite done sitting in classrooms: BA (Biology) at the University of Texas at Austin, a Master of Science in Developmental Biology at MD Anderson Cancer Center/UT Houston, and Medical School at UT Health Science Center San Antonio. Residency training in Emergency Medicine and Board Certification (American Board of Emergency Medicine) followed. I like to tell Cole & Jude (my sons) that I "Graduated from the 27th grade" whenever they complain about school. I’m not sure what the horrified shudders are supposed to mean though……

 

     My professional interests include preventative care, men's health, mental health, pain management, medical cannabis, biohacking, and treating Traumatic Brain Injuries (TBI) . Our family lives in Dripping Springs and when not in the office you can find me working out, running, shooting guns and writing. 

EDUCATION 

1. UNDERGRADUATE: University of Texas, Austin (2000)

2. MASTER OF SCIENCE: UT Houston HSC GSBS / MD Anderson Cancer Center (2005)

3. MEDICAL SCHOOL - University of Texas Health Science Center at San Antonio (2009)

​​

4. RESIDENCY - University of Virginia Hospital, Charlottesville, VA (2012)

​PUBLICATIONS

1. Silverberg B, Moyers A, Wainblat BI, Cashio P, Bernstein K. A Stitch in Time: Operative and Nonoperative Laceration Repair Techniques. Prim Care. 2022 Mar;49(1):23-38.

 

2. The Introduction Of Public Access Defibrillation To A University Community: The University of Virginia. Am J Emerg Med. 2012 Jan; (1):240-2.

 

3. Genetic Control Of Programmed Cell Death in ​Drosophila Melanogaster. Semin Cell Dev Biol. 2005 Apr;16(2):225-35.

 

4. tramtrack-69 Represses reaper-Induced Midline Glia Cell Death In Drosophila melanogaster. Thesis: Master of Science

Matthew Perdue, PA DSc

I am currently serving in the US Army veteran as the leader of two physician assistant programs. Born and raised in a family that emphasized the importance of service, my journey began in

Schofield Barracks, Hawaii, where I provided direct medical support in various combat and garrison environments. This path has taken me across the globe and through the rigorous

demands of military medicine, culminating in a Doctorate of Science in Emergency Medicine PA Studies from Baylor University.

     My professional odyssey has been marked by diverse and fulfilling experiences: stabilizing trauma patients in bustling emergency departments, providing first aid in Iraq and Afghanistan, rappelling out of helicopters, and teaching the next generation of military clinicians. I've managed to weave a career that blends hands-on patient care with academic mentorship, continually striving to bridge the gap between the trenches of emergency medicine and the evolving landscape of primary care.

     Despite my extensive experience in emergency and austere settings, I've always believed that the heart of medicine lies in proactive, preventative care. Over the years, I found that many of the acute crises I managed were preventable. Patients suffering from chronic conditions like diabetes, hypertension, and heart disease often arrived in dire situations because they lacked access to comprehensive and understandable medical guidance earlier in their health journeys.

     Inspired by these encounters, I've decided to transition into primary care with a focus on optimizing patient health through education, preventive strategies, and holistic treatment

approaches. I am passionate about taking the time to sit down with patients, explain their conditions, and work collaboratively to develop personalized health plans. My goal is to empower patients with the knowledge and tools they need to make informed decisions and lead healthier lives.

     With a background rich in both emergency medicine and military service, I bring a unique perspective to primary care, focused on comprehensive patient education and preventative

health strategies. I am excited to embark on this new chapter, dedicated to optimizing patient health and fostering well-being in my community.

OTHER DETAILS

 

     Outside the clinic, I am an advocate for fitness and wellness, having maintained a lifelong interest in physical conditioning and the psychological benefits of an active lifestyle. I love lifting

heavy things, hiking, and occasionally mixed martial arts.

     Living in Harker Heights, TX, with my family, I balance my professional responsibilities with personal passions such as playing with my children, exploring the latest in medical technology (especially artificial intelligence), and shooting Call of Duty zombies with my son.

EDUCATION 

1. DOCTORATE: Doctorate of Science in Emergency Medicine PA Studies, Baylor University, Waco, TX

2. MASTER’S: Master of Physician Assistant Studies**, University of Nebraska Medical Center, Omaha, NE

3. UNDERGRADUATE: Bachelor of Science, University of Nebraska Medical Center, Omaha, NE

​PUBLICATIONS

1. Perdue M., Hartvickson S. Accidental foreign body in the bladder following an attempt at sexual gratification. Visual journal of emergency medicine. 2024;34:101928-101928.

doi:https://doi.org/10.1016/j.visj.2024.101928

2. Rodriguez, R.C., Sandoval, C., Perdue, M., Monti, J. and Walker, J., 2023. Accuracy of Needle Thoracostomy Site Selection among US Army Medics. Medical Journal, US Army

Medical Center of Excellence (MEDCoE). PMID: 37042507

3. Meaney, C., Stroer, K., Perdue, M., Walker, J., Umar, M., & Mitchell, C. (2022). Use of YEARS Algorithm in Military Health Care Beneficiaries to Evaluate Use of Computed Tomography Pulmonary Angiography. Military Medicine. DOI: 10.1093/milmed/usac332

4. Perdue, M.J., Umar, M., Walker, J, Kubena, B., Immersive Virtual Reality for Pain Control and Anxiolysis During IV Blood Draws in Adults: A Randomized Controlled Trial. Military Medicine. Military Medicine Aug 23, 2022. DOI: 10.1093/milmed/usac249

5. Meaney, C., Perdue, M.J., Umar, M., Walker, J., Hydrofluoric Acid, an Unexpected Surprise. Military Medicine June 24, 2022. DOI: 10.1093/milmed/usac179

6. Perdue, M.J., Umar, M., Walker, J., Kelly, M., Case Study: Patient with Intra-abdominal Large Desmoid Tumor Initially Presents with Chronic Diarrhea. Military Medicine April 16

2021. DOI: 10.1093/milmed/usab144

REGISTERED NURSE

Rebecca, RN

If you haven't met Rebecca already then you’re in for a great experience. Trained in Critical Care nursing, thoughtful and compassionate, she’s a stellar and critical member of the Code 1 Concierge team. We call her "The Quiet Professional."

 

Rebecca was born and grew up in Austin, TX. She received her Bachelor's of Science in Nursing from the University of Mary Hardin Baylor in Belton, TX and has worked for over 10 years in critical care nursing. She has been with Code 1 Concierge almost since the beginning.

There was a rumored stint working in the circus as a tight-rope walker.....but she can now be seen around powerlifting gyms in Austin. Are competitiions in her future???

registered Nurse

Jenna, RN

Jenna brings 14 years of nursing experience to Code 1 Concierge, with a background in ER, Pediatric ICU, and outpatient surgery. Born and raised in Austin, she now lives in Dripping Springs and is dedicated to providing personalized, high-quality care to every client.

Jenna enjoys lifting weights, fitness, and family.

OFFICE MANAGER

Sandra Wilson

Sandra is the main point of contact for patients and the public and is responsible for taking care of the details. 

 

Sandra’s background is in insurance as a claims adjuster and manager.

 

After 35 years, she was looking for a change and lucky for us, she stumbled upon my ad on Facebook for an office manager/medical assistant. Her customer service background made her a perfect fit. 

Get In Touch With Us

Address

14101 Hwy 290W, St. 400A, Austin, TX 78737

Office Hours

Mon – Fri 8:30am – 3:00pm

Saturday, Sunday – CLOSED to the public

Phone Number:

512-894-5050

400 A, 14101 US-290, Austin, TX 78737, USA

© 2025 Code 1 Concierge Care - All Rights Reserved

512-894-5050