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Streamline offers personalized care with 1-on-1 sessions led by experienced Doctors of Physical Therapy. Our unique approach, blending individualized attention and sports-focused expertise, ensures patients recover and excel in their activities.

Our New Model Leads To:

  • Fewer overall therapy visits

  • Less frequent visits and more time for you 

  • No wasted time in sessions

  • Long lasting outcomes; no band-aid "fixes" that are temporary

  • Increased self efficacy and patient autonomy in managing your injury

  • Less time away from training

  • Reduced surgeries and medications

Numbers Don't Lie:

To date, we currently average less than half the national average number of visits needed to treat a variety of different injuries! That leaves more time on your hands and more money in your pocket. 

  • Active Adults/Those Who Exercise Regularly

  • Youth Athletes

  • Swimmers and Triathletes

  • Golf & Tennis Players

  • Martial Arts Injuries

  • Shoulder Injuries and Overhead Athletes

  • Low Back and Neck Pain

  • Hip and Knee Injuries

  • Return to Sport Rehab

We Specialize In:

Our Why:

We believe in providing optimal results in less visits through a new, effective and efficient healthcare model to help active adults who care about their health and quality of life by changing the way private practice physical therapy is done and putting the patient first.​



High level, 1-on-1 individualized care provided only by our Doctors of Physical Therapy to get you back to everything you want to do through their specialized knowledge about your injury and return to sport requirements for your activity.

  • Sport/activity specific therapists to optimize return to sport

  • No gimmicky, hands off treatment modalities

  • Latest rehab technology used with professional teams 

    • Blood Flow Restriction Therapy, Dry Needling, Cupping, IASTM

  • Flexible scheduling within 48 hours of contacting us


Dr. Nick Hadinger PT, DPT, USAW-1

Dr. Nick Hadinger is a licensed physical therapist and Arizona native specializing in orthopedic and sports rehab. Nick graduated from Northern Arizona University as a Doctor of Physical Therapy and obtained his undergraduate degree in Physiology from the University of Arizona. He competed as a Division I athlete on the men's swim team for University of Arizona and at the US Olympic Trials in 2012. He now races in triathlons and is training for Oceanside 70.3 and Coeur D'Alene 70.3 Ironman races this season.


Nick has experience in high level orthopedic and sports rehab working with a wide range of clients from Ironman athletes, NFL combine and NBA players, Olympic medalists to weekend warriors. He is a member of the USA Swimming Sports Medicine Network; traveling with and treating Team USA athletes at various events. He has also served as a therapist for athletes competing at NCAA Division 1 Swimming & Diving National Championships. Nick is a certified USA Weightlifting Coach, a member of the National Strength and Conditioning Association and works with local swim teams in the Phoenix/Scottsdale area providing expert dryland programming.


He has served as the Clinical Instructor for doctoral students attending George Fox University and University of the Pacific. 


Nick specializes in both non-operative and post-operative injuries involving the shoulder, back, hips and knees and aims to KEEP you active while addressing your injury.

In his free time he enjoys camping, swimming, cycling, snowboarding and finding the best foodie spots in town with his 2 dogs and wife Lindsay. 


Degrees & Specialty Certifications

  • Doctor of Physical Therapy - Northern Arizona University

  • Bachelor of Science in Physiology - University of Arizona


  • USA Olympic Weightlifting Coach (USAW-1)

  • USA Swimming Sports Medicine Network

  • ​Certified in Blood Flow Restriction Therapy

  • Certified in Dry Needling through IDN

  • Functional Movement Screen (FMS)

  • Advanced course work in NAIOMT (North American Institute of Orthopedic Manual Therapy)

  • RockTape Functional IASTM Certification (Instrument Assisted Soft Tissue Mobilization) 

  • RockTape Functional Taping Certifications

Ryan Bio

Dr. Ryan Spencer PT, DPT, OCS, CSCS

Dr. Ryan Spencer is from Long Island, NY and decided to move to Arizona in January of 2017. Ryan is a former football player, discus/shotput thrower, powerlifter and is currently a blue belt in Brazilian Jiu-Jitsu at Gracie Barra. He has experience treating thousands of patients from varying backgrounds but now focuses on treating active adults, martial artists and all athletes.

For over 2 years, Ryan was the director of an outpatient orthopedic clinic and became tired of the corporate setting. Frustrated with corporate demands, insurance restrictions and having his patients be a metric of profitability, Ryan decided to team up with Streamline Performance PT so he can truly give each patient the high-quality care they deserve.

Despite his many certifications, Ryan is always striving to improve his ability to help his patients and is currently enrolled in a program to become a Certified Orthopedic Manual Therapist (COMT), joining an elite group in top percentile of manual therapists in the country. In 2019, Ryan was awarded the Most Outstanding Clinical Instructor Award by Midwestern University.


In his free time Ryan enjoys training Jiu-Jitsu, archery, walking his dog, weightlifting, reading and watching sports. Ryan is a die-hard NY sports fan including the Jets, Rangers, Yankees and Knicks.


Degrees & Specialty Certifications

  • Doctor of Physical Therapy -  Quinnipiac University

  • Bachelor of Health Science - Quinnipiac University

  • Board Certified Orthopedic Specialist (OCS) from American Board of Physical Therapy Specialties

  • Blue Belt in Brazilian Jiu Jitsu

  • Certified Strength and Conditioning Specialist (CSCS) from NSCA

  • Certified in Dry Needling via Spinal Manipulation Institute

  • Certified in Blood Flow Restriction Training

  • EXOS Performance Specialist (XPS)

Dr. Lauren Mueller PT, DPT, CDN, TPI Cert. M2

Lauren Bio

Dr. Lauren Mueller is a Phoenix area native and Xavier HS alum specializing in outpatient orthopedics, sports medicine and rehabilitation. She has trained several 3rd year PT doctoral candidates in their clinical skills as their Clinical Director since 2018. 


Lauren is a certified Titleist Performance Institute instructor, able to train all levels of golfers, by increasing the player’s performance through body function and the golfer’s physical limitations during the golf swing. As a former athlete herself, Lauren has experience working with golfers, tennis players, volleyball athletes, weekend warriors, runners, spin and cycling enthusiasts...she's seen it all! She is beyond excited to be part of the Streamline team, where she is able to dedicate one-on-one time with her clients and give each person the individualized attention they deserve.


For fun, Lauren loves to spend her spare time on the golf course or at local fitness clubs and classes, including spin cycling (Former Certified Spin Instructor via Madison Improvement Club), HIIT training, pilates and hot yoga. On the weekends you can find her with her husband and sweet pup, family and friends, at a wedding, on the golf course or out trying the newest restaurants in the valley!


Degrees & Specialty Certifications

  • Doctorate of Physical Therapy - Northern Arizona University

  • Bachelors of Science in Psychology - The University of Arizona

  • Titleist Performance Institute Medical Provider Certification

  • Certified in Selective Functional Movement Assessment (SFMA)

  • Certified in Dry Needling for Orthopedic Rehab and Sports Performance

  • Certified in Advanced Dry Needling for Lumbo-Pelvic Health

  • Certified in Blood Flow Restriction Training

  • Certified Clinical Instructor for Doctorate of Physical Therapy Candidates


Katie Higgins, CSCS

Katie Higgins is one of Streamline's personal trainers! She is a local Phoenix athlete who swam competitively at the Division 1 level for the University of Houston and currently trains for CrossFit and swimming. 

Katie comes to us with her CSCS (certified strength and conditioning specialist) and an amazing background in swimming having been both a coach and athlete at the professional level here in the valley. She loves working with active adults and youth athletes and leads our club and Masters dryland programs and triathlon specific group training sessions. 

The water is her sanctuary. Whether its a pool, a lake or the beach, you won't catch her without a smile!!


Grant House, CSCS

Grant House, an ASU graduate with degrees in Clinical Exercise Science and Human Nutrition, excelled both academically and athletically. As a standout swimmer for ASU, he earned multiple All-American honors and First Team Academic All-American honors. With a Master's degree in hand, Grant, a multiple-time PAC12 champion, brings a winning attitude and strong coaching ability.


Internationally, Grant represented Team USA in swimming for 9 years, securing multiple medals at events like the Pan American Games and the World University Games. A TYR Pro Swim Series medalist, he's now training for his Third Olympic Trials at the 2024 Olympic Team Trials.


Beyond the pool, Grant's curiosity about optimizing performance led to internships with USA Swimming and EXOS. Certified as a Strength and Conditioning Specialist, he looks forward to contributing to Streamline's community and conducting swim clinics.

Zachaiah Bio

Monty, Strength and Conditioning Coach

Monty is a dedicated strength and conditioning coach with a passion for helping athletes reach their peak performance. With a background in powerlifting and over 10 years of experience, Monty designs tailored training programs to optimize strength, speed, and agility. He excels in empowering athletes to thrive in their respective sports.

Committed to ongoing education and staying at the forefront of fitness trends, Monty is a trusted mentor and motivator, guiding individuals to surpass their limits and achieve their athletic goals. In his spare time Monty enjoys outdoor adventures with his girlfriend, focusing on his own training and expanding his knowledge anyway he can! Sign up for his Group Fitness Classes utilizing the MindBody App. 


Brittney, Office Coordinator & Client Experience Specialist

Brittney Kelly is a native of Tucson, Arizona. Her passion for health and wellness led her to pursue a degree in Healthcare Administration at Brown Mackie College. As a child Brittney actively participated in various activities, such as track, volleyball, dance, cheer, and powder puff football. 


Following her graduation, Brittney began her journey in the healthcare field, gaining valuable experience in home health, phlebotomy, human resources, marketing and medical spas. With over 9 years of experience in the health and wellness industry, Brittney's journey has been educational, fulfilling and progressive.


As the Office Coordinator and Client Experience Specialist, Brittney's purpose is clear - ensure that all aspects of Streamline are effortlessly streamlined for both staff and clients. Brittney's unwavering dedication to patient-first care and her exceptional leadership abilities allow her to elevate the team to new heights. As the nucleus of the team, she strives to provide a  welcoming atmosphere at Streamline's new facility.


Beyond her professional life, Brittney cherishes her free time, savoring lake days with her family, weekend getaways, playing with her beloved dog, Apollo and exploring her creative side through crafting skin care products. Through her journey, Brittney remains a pillar of support for both staff and clients, guiding them towards their wellness and recovery goals. 

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