Credentials you can verify
At Rehab Lab, every patient is treated by a licensed Doctor of Chiropractic, every visit. Here are the licenses, certifications, and affiliations behind that promise.
Rehab Lab is a chiropractic and sports rehabilitation practice with two Wisconsin clinics, in Wauwatosa and Appleton. Every doctor on our team is a licensed Doctor of Chiropractic, and you are treated by a doctor, never handed off to an aide.
Trusted, certified, and part of the community
Board certifications & training, by doctor
Degrees, board certifications, and advanced training for the doctors on our team.
Dr. Sam Wagner
- Doctor of Chiropractic (DC)
- Masters of Sports Rehabilitation Science (M.S.)
- DACBSP, Diplomate of the American Chiropractic Board of Sports Physicians
- CCEP, Certified Chiropractic Extremity Practitioner
- CSCS, Certified Strength and Conditioning Specialist
- Elite Provider, Active Release Techniques (ART)
- Master Dry Needling Certified (MDNC)
- Graston Technique, Corrective Exercise (CES) & Performance Enhancement (PES) Specialist
- SFMA, FMS, RockTape (FMT), DNS, EMT-B
- B.S. Biology, Lawrence University
Dr. Nate Williams
- Doctor of Chiropractic (DC)
- SFMA, Selective Functional Movement Assessment
- Trained in Dynamic Neuromuscular Stabilization (DNS)
- Dry needling and IASTM certified
Dr. Michael Markowski
- Doctor of Chiropractic (DC), Palmer College of Chiropractic
- B.S. Biochemistry, UW-Stevens Point
- The Mally Method, Extremities (senior intern + 2-year residency)
- Master Dry Needling Certified (MDNC)
- Graston Technique (MI) & Craniofacial Release (CFR)
- SFMA, FMS, Flexion Distraction, MLS certified
Dr. Mike Giammarco
- Doctor of Chiropractic (DC), Northwestern Health Sciences University
- B.S. Exercise and Sport Science, UW-La Crosse
- CSCS, Certified Strength and Conditioning Specialist
- CPSS, Certified Performance and Sport Scientist
- EMT-B, Emergency Medical Technician
- DNS-ET, Dynamic Neuromuscular Stabilization
- FRCms and FRSC, Functional Range Conditioning
- Dry needling certified
- Graston Technique certified
- FAKTR certified
- Blood flow restriction training
- Adjunct professor, anatomy and physiology
Dr. Tony Lopez
- Doctor of Chiropractic (DC), Northwestern Health Sciences University
- Emphasis in sports and rehabilitation
- B.S. Biology, University of Wisconsin-Stevens Point
Dr. Nick Agen
- Doctor of Chiropractic (DC) with honors, Northwestern Health Sciences University
- M.S. Exercise Science, Concordia University, St. Paul
- B.S. Pre-Medical Biology, Saint Norbert College
- Emergency Medical Technician (EMT)
- SFMA & FMS movement assessment
- MRT (Myofascial Release Technique)
- FAKTR soft-tissue certified
- Diversified & Flexion Distraction technique
- Dynamic taping and strapping
- Dry needling certified
Dr. Peda Moua
- Doctor of Chiropractic (DC), Palmer College of Chiropractic
- B.S. Kinesiology, University of Wisconsin-Oshkosh
- Pursuing Certified Chiropractic Sports Physician (CCSP)
- Advanced Soft Tissue Rehab
- SFMA & FMS movement assessment
- IASTM (Instrument Assisted Soft Tissue Mobilization)
- Active Release Technique
- Dry needling certified
Looking for something specific? Contact us and we’ll be glad to share license and insurance details.
Questions about our credentials
Are your doctors licensed in Wisconsin?
Yes. Every doctor who treats you is a licensed Doctor of Chiropractic, and you are treated by one at every visit rather than handed to an assistant partway through. Credentials for each are listed on this page and on their individual bios.
What does DACBSP actually mean?
Diplomate of the American Chiropractic Board of Sports Physicians, the profession’s highest sports credential, requiring additional years of study and examination beyond the chiropractic doctorate. Dr. Sam holds it, alongside a Masters of Sports Rehabilitation Science.
How do I know a treatment recommendation is honest?
Ask for the reasoning and the finish line. Every plan here comes with milestones set at the start and objective testing to measure against them, so progress is a number rather than an opinion. And we will tell you when a case belongs with an orthopedist instead.
What happens if chiropractic care is not right for my problem?
We say so and point you where you should go. Screening at the first visit exists specifically to catch the presentations that need imaging, a specialist or an emergency department. Treating something outside our scope would waste your money and delay your care.
Do you use evidence-based methods?
That is the intent, and it shapes what we do and do not claim. We pair manual therapy with progressive loading because that combination has the strongest support, we measure outcomes objectively, and we avoid overselling adjuncts like taping or cupping beyond what they actually do.
Who owns the practice?
Dr. Sam Wagner founded and owns Rehab Lab. He is a board-certified sports physician who holds a Masters of Sports Rehabilitation Science, moves between both clinics rather than practicing at one, and sees patients by application only. His full bio has the detail.
Ready to fix the cause, for good?
Treated by a credentialed doctor who builds you a real plan, every visit.
Wauwatosa · Appleton · No referral needed