Coordinated care, built around you
Innovare Tx Regenerative & Wellness Clinic is led by Charles Ortega, PA-C, MPAS — a Dallas native who brings both clinical and personal familiarity with orthobiologic procedures.
A provider with firsthand experience
Charles Ortega hasn't only studied orthobiologic medicine — he has been a patient too. Years of competitive soccer through high school and college took a toll on his knees, and multiple knee surgeries followed.
Charles chose to undergo a Bone Marrow Aspirate Concentrate (BMAC) orthobiologic procedure — an autologous procedure prepared from his own bone marrow, the same procedure now offered at Innovare Tx. That was roughly a decade ago.
That firsthand experience shaped how he practices. Since then, Charles has performed orthobiologic procedures for hundreds of patients and trained numerous providers in ultrasound-guided joint injections.
"He was very informative and found more than my initial visit last October back home. Very impressed with the level of care just passing through the area."— Kevin A., Zocdoc
PRP, PPP, BMAC, and A2M are autologous procedures prepared from your own blood or bone marrow. They are considered investigational and are not FDA-approved for the treatment of any specific orthopedic condition, including osteoarthritis. Individual results are not guaranteed. Any decision to pursue an orthobiologic procedure should be made with your provider after a clinical evaluation.
Experienced, integrated, and genuinely invested
Three providers who coordinate every aspect of your care — so your treatment connects instead of contradicts.
Charles Ortega, PA-C, MPAS
Co-Founder & Lead Provider
Dallas native · NCCPA certified since 1998 · AAPA Fellow · 27+ years of experience · Bilingual (English & Spanish)
Charles Ortega is a Dallas native, an NCCPA-certified physician assistant, and co-founder of Innovare Tx Regenerative & Wellness Clinic along with Dr. Nathan V. Nguyen, who also serves as his supervising physician. With 27+ years in medicine (since April 1999), he brings experience spanning primary care, occupational medicine, and orthobiologic procedures.
Charles aims to treat every patient the way he'd want to be treated, with a thorough evaluation and a plan that makes sense for your life. He co-founded Innovare Tx in January 2025 after nearly seven years leading clinical care at Nextgen Wellness, bringing his full scope of expertise into a practice built around integrated, whole-person medicine. Veteran disability evaluations were planned to start in February 2026; call to ask about availability.
Dr. Nathan V. Nguyen
Co-Founder & Supervising Physician
Supervising physician · Co-founded Innovare Tx in January 2025
Dr. Nathan V. Nguyen co-founded Innovare Tx Regenerative & Wellness Clinic with Charles Ortega, PA-C in January 2025 and serves as supervising physician. He provides physician supervision for the clinic's care, as Texas law requires for physician assistants.
Rowena Calleja, PT
Physical Therapist
Licensed PT · Medical degree (Philippines) · 7+ years U.S. experience · Mon–Fri 9am–5pm · English & Tagalog
Rowena Calleja, PT is a Texas-licensed physical therapist. She holds both a Medical Doctor degree and a Bachelor of Science in Physical Therapy, and in the US she practices as a licensed physical therapist, not as a physician. She earned her B.S. in Physical Therapy from De La Salle University – Health Sciences Campus (1997), then completed her Medical Doctor degree at De La Salle University College of Medicine (2003).
With 7+ years of U.S. physical therapy experience — including 4.5 years focused on knee osteoarthritis at Arthritis Knee Pain Centers in Dallas — Rowena focuses on post-surgical rehabilitation, chronic pain rehabilitation, and musculoskeletal recovery. She works directly alongside Charles Ortega so your medical treatment and rehabilitation stay fully integrated. Explore physical therapy
Education & credentials
- Master of Physician Assistant Studies (MPAS) — University of Texas Pan American, Edinburg (2009)
- B.S. Physician Assistant Studies — University of Texas Medical Branch, Galveston (1998)
- B.A. Biology (Minors: Chemistry, Education, Spanish) — University of North Texas (1993)
- NCCPA certified — continuously since 1998
- American Academy of Physician Assistants (AAPA) Fellow — since 1998
- Licensed — Texas (PA02353), New Mexico (PA2022-0024), Florida (PA9121102), and Oklahoma (pending)
- Fluent in English and Spanish
Credentials & certifications
- Medical Doctor — De La Salle University College of Medicine, Philippines (2003)
- B.S. Physical Therapy — De La Salle University – Health Sciences Campus, Philippines (1997)
- Active Texas Physical Therapy License
- ECFMG Certified (Educational Commission for Foreign Medical Graduates)
- BLS Certified (Basic Life Support)
- Licensed Physician — Republic of the Philippines
- Licensed PT/OT — Republic of the Philippines (6th Place, Board Exam, February 2007)
- Languages: English and Tagalog
27+ years of experience
Nearly two decades of primary care inform how Charles looks at the whole patient, not just one joint. Years of occupational medicine built his experience with work injuries and workers' compensation, which he applies to federal OWCP care today.
Charles's areas of clinical focus include orthobiologic medicine (PRP, PPP, BMAC, A2M), weight management with compounded tirzepatide and compounded semaglutide, neuropathy treatment, OWCP / federal workers' compensation (CA-1/CA-2 claims for USPS, TSA, DHS, CBP, DOD, VA), family medicine, and veteran disability evaluations (planned from February 2026; call to confirm availability).
What to expect at Innovare Tx
A few things patients ask about.
Integrated care under one roof
We combine orthobiologic medicine, physical therapy, weight management, and family medicine in a single practice. Your providers talk to each other. Your treatment plan connects instead of contradicts.
27+ years of experience
Charles Ortega has practiced as a physician assistant since April 1999, across primary care, occupational health, and orthobiologic procedures.
Physical therapist with medical training
Rowena Calleja holds both a Medical Doctor degree and a B.S. in Physical Therapy (both from the Philippines), with 4.5 years focused on knee osteoarthritis rehabilitation. In the US she practices as a physical therapist, not as a physician.
In-person medical supervision
We offer in-person evaluation and follow-up, including for weight management and orthobiologic procedures, with telemedicine available for some follow-ups.
Posted pricing
In-clinic compounded tirzepatide is $160/month (medication only; consultation $70 and follow-ups $50 billed separately). Home delivery is $249/month. Compounded medications are not FDA approved.
Bilingual & multilingual care
Charles is fluent in English and Spanish; Rowena speaks English and Tagalog — extending our ability to serve a diverse patient community. Military & law enforcement discounts are available on select cash-pay services, not physical therapy.
Integrative, whole-person care
We look at the full picture. Whether you need a routine checkup, help with peripheral neuropathy, or conservative care for ongoing joint pain, our team is equipped to help.
- Listen first. We start by hearing your story — your pain, your goals, your past experiences with healthcare.
- Evaluate thoroughly. We use hands-on examination, imaging, and diagnostics to understand what's actually happening.
- Educate clearly. We explain what we find, your options, and what we'd recommend — in language you can actually understand.
- Plan together. We build a plan around your goals, and explain the options, including their limits.
- Follow through. We review your progress, adjust your plan, and stay involved.
Some patient reviews
5.0 average across 45+ patient reviews on Google, Zocdoc, Tebra, and Wellhub. Reviews are individual opinions, not a prediction of your results. Results vary. Charles Ortega is a physician assistant, not a physician; some patients call him 'Dr.'
"He was very informative and found more than my initial visit last October back home. Very impressed with the level of care just passing through the area."
"Dr Ortega is very knowledgeable and passionate about his work! He offered several options for treatment, and I felt well taken care of!"
"Excellent service and attention to my needs"
"Everyone was awesome! Super sweet staff."
Conveniently located in Addison, TX
Insurance accepted: Aetna, BlueCross BlueShield, Cigna, Medicare, UnitedHealthcare (200+ plans). Financing through Cherry, Affirm & CareCredit available. Note: we do not accept HMO plans for online booking. Insurance & billing details
Frequently asked questions
Ready to talk through your options?
Book your visit at our Addison clinic — or call and we’ll verify your insurance before you come in.