All Americans deserve access to relationship-based primary care.
From our on-site clinics to TextCare, we’re redefining what people should expect from their healthcare.

2013
year founded
49
states served
400
company partners
420k
patients served
94
net promoter score
128
doctors and providers
100%
retention for groups 500+
62.3%
average enterprise engagement
Our Care team
The best clinical staff around.
All of our providers are One to One Health employees. We hire clinicians who see their patients as humans that need caring for rather than numbers that hit their daily quota.
Join Our Team
Jen Brooks, PA-C
Clinical Provider
Primary Care
Jen is a primary care provider at One to One Health’s Riverfront Clinic and a Chattanooga local. She joined in 2020, initially supporting Hamilton County School families through EdHealth clinics. A Magna Cum Laude graduate from Massachusetts College of Pharmacy and Health Sciences University with a master’s in physician assistant studies, Jen previously worked as a CT/X-ray technologist for ten years.

Catherine Calderon, FNP-C
TextCare Provider
Urgent Care
Catherine graduated summa cum laude with a Master of Science in Nursing from the University of Tennessee at Chattanooga. She brings 6 years of experience from Chattanooga’s largest hospital ER trauma and stroke department. Born in Uruguay, her multicultural background and Spanish fluency help bridge language barriers. Catherine is passionate about empowering patients to take charge of their health. Outside work, she enjoys outdoor activities and time with her husband and four pets.

Jake Calella, PA-C
TextCare Provider
Urgent/Primary Care, Emergency Medicine
Jake Calella is a certified Physician Assistant (PA-C) who graduated Magna Cum Laude from the University of South Carolina School of Medicine. With a background in emergency and urgent care, he now focuses on primary care. Jake has served as adjunct faculty at Vanderbilt University, mentoring future healthcare professionals. A Chattanooga local, he enjoys family adventures with his wife and three daughters, plus running, backpacking, and skiing.

Wendy Dodd, FNP-C
TextCare Provider
Primary Care
Wendy is a certified Family Nurse Practitioner (FNP-C) with over a decade of experience across primary care, geriatrics, emergency medicine, neurosurgery, and hospice. She graduated summa cum laude from Southern Adventist University with a Master of Science in Nursing. Outside work, Wendy enjoys reading, hiking, gardening, and adventures with her husband and two children. She’s passionate about building patient connections and helping you achieve your health goals.

James Farrelly, PA-C
TextCare Provider
Urgent/Primary Care, Emergency Medicine
James is an Emory University graduate with over a decade of experience as a Physician Assistant specializing in Urgent/Primary Care, Emergency Medicine, and Vascular Surgery. Before becoming a PA, he served as an EMT in Chattanooga, TN. James focuses on delivering compassionate, evidence-based care.

Erin Fesmire, NP
TextCare Provider
Urgent Care
Erin graduated summa cum laude in 2019 with a Master of Science in Nursing from the University of Tennessee at Chattanooga. Her background includes ICU experience at a local hospital and service at a walk-in clinic, where she developed expertise in both critical care and fast-paced environments. She’s committed to helping patients achieve their health goals.

Shae Hinton, FNP-C
TextCare Provider
Primary Care, Family Medicine
A Magna Cum Laude graduate from King University with a Master of Science in Nursing (2018), Shae is a certified Family Nurse Practitioner with 15 years of experience. Her background includes surgical services, orthopedics, and labor and delivery, with the last five years focused on primary care.

Julie Livarchuk, FNP-C
TextCare Provider
Primary Care
Julie is a certified Family Nurse Practitioner with over a decade of experience ranging from ICU to primary care. She enjoys running, outdoor activities, and beach time, while sharing her passion for health and wellness.

Gabriella Lozeau, PA-C
TextCare Provider
Pediatric/Family Medicine, Urgent Care
Gabby is a certified Physician Assistant (PA-C) with experience in Pediatrics, Family Medicine, and Urgent Care. A Nova Southeastern University graduate, she’s passionate about empowering patients with knowledge to improve their health and wellness. Known for her friendly approach and strong patient relationships, Gabby enjoys hiking and traveling with her husband and their black lab, with a goal to visit as many national parks as possible.

Viktoriya Malashiy, FNP-C
TextCare Provider
Pediatric/Primary Care
Viktoriya is a Nurse Practitioner with a Master of Science in Nursing from the Medical University of South Carolina. Her diverse background spans multiple critical care settings—cardiac, medical, surgical, and trauma ICU—treating both adults and children. Before joining One to One Health TextCare, she practiced in a pediatric office. Viktoriya is committed to providing personalized, attentive healthcare to her patients.

Adria Sherrill, FNP-C
TextCare Provider
Urgent/Primary Care
Adria is a Nurse Practitioner with a Master of Science in Nursing from the University of Tennessee at Chattanooga, where she graduated summa cum laude in 2013. Starting her career in 2000 in the Medical Intensive Care Unit, she later gained experience in surgery and recovery before working in Primary Care, Orthopedics, and Urgent Care. She focuses on building strong patient relationships to support better health outcomes. Outside work, she enjoys time with her family and their Boston Terrier, Brownie Girl.
We’re looking for people like you.
You got into healthcare because you want to help people. At One to One you can. See if any of our open positions are the right fit for you.
See open positionsOur Values
We’re just people helping people.
Adaptable
Collaboration and creativity drive our work, allowing us to bend rather than break under pressure.
Kind
Healthcare should be about putting people first, treating patients like family, and cutting through the noise to prioritize care.
Responsible
Not just socially responsible, but personally responsible for the care we deliver.
Perseverant
Our perseverance is bred from our purpose; and that’s to ensure that everyone in this world receives the care they need.

Our Founder
Keith Helton, M.D.
“When you interact with folks as a loved one, which I believe all my patients are loved ones, you take care of them in a completely different way.”
Dr. Helton, along with founding One to One Health, has been a practicing specialist in internal medicine and pediatrics. He served as Executive Vice President of Physician Services at a leading academic medical center, Erlanger Health System. Dr. Helton also started and led a hospitalist management company called MDP Management. Currently, he serves on the UC Foundation Board.
Our Leadership Team
Meet the team remaking healthcare.
Dave Kinzler
Chief Executive Officer
Previously a strategy consultant for Boston Consulting Group, Legislative Director of the Senate Foreign Relations Committee…
Ashley Berry
Chief Clinical Operations Officer
With over fifteen years of healthcare management experience, Ashley oversees all clinical operations and provides high-level oversight…
Wil Trohanis
Chief Revenue Officer
A group benefits veteran with 20 years of experience, Wil joined One to One Health from Aon. There, he led healthcare strategic…
Paul Dickenson
Chief Financial Officer
Prior to joining One to One, Paul served as the CFO for Ubiquitous., a venture-backed marketing startup and as the VP of Finance for…
Christi Coleman
SVP Market Development & Strategy
Christi brings over 30 years of experience in employee health, with a career spanning business development, team leadership, and…
Tillman Endsley
SVP of Operations and Product
Tillman joined One to One Health after working as a program manager at Facebook, where he focused on reducing real-world harm. He…
Jesse Rosenthal
VP of Virtual Operations
Jesse has two decades of experience leading, investing in, analyzing, and consulting for healthcare companies, most recently at…
Jocelyn Chambers
VP Client Development
Jocelyn has over 15 years of experience in working with corporate clientele and their group health and benefits plans. She helped…
Olivia Ruiz
Director of People
Coming to us with over 10 years of HR experience, specifically in healthcare, Olivia leads One to One Health’s strategic HR initiatives. …