Our Staff
We are locally owned and operated!
Erin Wagner

Erin Wagner
Background:
- Born and raised in Hilo.
- University of Hawaii at Hilo – BA Sociology, Occupational Safety & Health.
- Kapiolani Community College – AS Physical Therapist Assistant.
- Licensed Massage Therapist & Certified Medical Massage Therapist.
- Practicing PTA in private practice outpatient physical therapy since 2009.
- Founder & Co-owner of Core Wellness Hawaii, dba 80/20 Physical Therapy since 2016.
Hobbies/Interests:
I spend my free time hiking, jogging, and trying my best at golf. If I have a little extra time, you’ll find me cruising on my bike (road or mountain) or hanging out with my cat, dog, and flock of fluffy chickens – who are always looking for hugs… after food.
Charles Wagner

Charles Wagner
Background:
- Born and raised in Hilo.
- Marquette University – BS in Nursing & Doctor of Physical Therapy (DPT), 2006
- Clinical experience since 2006 in outpatient orthopedics, inpatient rehabilitation, and skilled nursing
- Co-owner of 80/20 Physical Therapy since 2017.
Hobbies/Interests:
Jiu jitsu, Surfing, Golfing, Road biking, Mountain biking, Hiking.
Recognized within the top three Best Physical Therapist of East Hawaii 2021
Yen Phi “Linda” Santiago

Yen Phi “Linda” Santiago
Background:
- Born and raised in Southern California. Family is originally from Vietnam.
- Completed undergraduate studies at University of California, Santa Barbara with a Bachelor’s of Science in Biochemistry and a Bachelor’s of Arts in Theater.
- Completed graduate studies for Doctor of Physical Therapy and University of St Augustine for Health Sciences in San Marcos, CA.
- Worked as a rehab aide after undergraduate for several years before developing passion for physical therapy.
- Special Training/Certifications: Experienced with treating vestibular dysfunction and neuromuscular disorders including Parkinson’s Disease, stroke, traumatic brain injury, and multiple sclerosis.
Hobbies/Interests:
Enjoys running for fun from 5Ks to half marathons with the occasional marathon thrown in the mix.
“If I’m not outside, I’m probably watching something with superheroes or wizards.”
Sonny Santiago Jr.

Sonny Santiago Jr.
Background:
- Filipino boy originally from Oakland, CA
- Participated in triathlons and marathons and competed in amateur boxing.
- Found interest in physical therapy due interest in sports/fitness in relation to athletic rehabilitation.
- Married to another great physical therapist at this facility with a fur baby (dog).
- Obtained BS in Kinesiology at SJSU.
- Obtained DPT at University of St. Augustine (USA).
- Lab assistant for DPT program.
- Experienced PT in out-patient ortho, NICU/out-patient pediatrics, and skilled nursing facility.
- Goal is to provide innovative, evidence based, current practice back to Hilo.
- Focused areas include sports, wellness/fitness, and orthopedics.
“I want to do more than just rehab athletes, but to also enhance their performance in their sport/hobbies coming back stronger with reduced risk for re-injury.”
Special Training/Certifications: Advance assessment B UE/LE, pelvic, cervical/thoracic/lumbar spine assessment & manipulation. Rock tape and blades, FMT mobility, Strong First Kettlebell, Member of National Strength and Conditioning Association (NSCA) and plan to obtain certified strength and conditioning specialist (CSCS)
Hobbies/Interests:
Fitness that involves high intensity interval training (HIIT) involving calisthenics, kettlebells, plyometric, TRX.
Balancing the exercises with my love for food…. I “Live to Eat.”
“I’m still a big child/nerd that collects figures, art and comics from childhood and also attends comic conventions (Comic-Cons).”
Ryan Fukunaga

Ryan Fukunaga
Background:
- Born and raised in Hilo, Hawaii
- Hilo High School
- Played collegiate baseball at Monterey Peninsula College & UH Hilo
- University of Hawaii at Hilo – BA in Kinesiology & Exercise Science
- West Coast University, Center for Graduate Studies- Doctor of Physical Therapy
Hobbies/ Interests:
- Hanging out with family and friends
- Playing with my dog
- Golfing
- Jumping in the ocean
- Traveling
Ciara Steynberg

Ciara Steynberg
Background:
- Born and raised in South Africa and moved to central California at 12 years old
- Taught elementary school in Hawaii for 7 years before changing careers to Physical Therapist Assistant.
- Licenced Yoga Instructor: Yin yoga, restorative yoga, kids yoga and yoga for adults with Autism.
Hobbies/Interests:
- Aerial Dance
- Open Ocean Swimming
- Scuba Diving
- Fire Dancing
- Yoga
Sara Jean Mantanona

Sara Jean Mantanona
Background:
- Born & raised in northern California
- Lived in Colorado then moved to Hawaii.
- PTA since 2002, with 17 yrs of experience in skilled nursing, acute care. Transitioned to outpatient rehab in 2018.
- Licensed Massage Therapist.
- Certified in Manual lymph drainage & Alzheimer’s.
Hobbies:/Interests:
Loves spending time with her daughter, being outdoors and participating in Pilates.
Melissa Johnson

Melissa Johnson
Background:
- Born & raised in Hilo, spent a few years living in the Bay Area.
- Graduate of UH Hilo with a degree in Business Administration.
Hobbies/Interests:
Enjoy’s growing succulents, watching Korean drama’s, and buying “entertaining gifts” for her nephew & niece to enjoy.
Deja Santana

Deja Santana
Background:
- Born on Oahu, raised in Hilo
- Paddled for five years
- Received AA Degree in Liberal Arts and Administration of Justice at HawCC
Hobbies/Interests:
- Spending time with friends and family
- Watching crime shows and documentaries
- Cleaning
Amaris Flores

Amaris Flores
Marie France Laurin

Marie France Laurin
Background:
- Born and raised in Quebec, Canada.
- Lived in Hilo since 2013.
- Licensed Massage Therapist.
- Special Training/Certifications in Medical Massage, Lymphatic Drainage, Cranio Sacral 1, Cupping and Trigger Point Therapy.
Hobbies/Interests:
Gardening, Tennis, Cycling and Hiking.

JOIN OUR TEAM!
Currently accepting resumes for Licensed Physical Therapists & Licensed Physical Therapist Assistants. Please email Erin your resume at erinw@8020ptandwellness.com
We also accept Student PT’s looking to complete a clinical rotation through an accredited university. Inquire with Charles at charlesaywagner@8020ptandwellness.com