A masked clinician talking with a patient in an exam room
Get to Know Us

Caring for Tulsa, one patient at a time

At EOWC Medical & Aesthetics you will find high-quality, affordable care from a team that treats you like family, with treatments grounded in current research.

We believe good care begins with listening, evidence, and a genuine commitment to every person who walks through our doors.

What We Stand For

Our care is grounded in compassion, research, and trust

Compassionate Care

We listen first, and treat every patient with genuine attention and respect.

Evidence & Innovation

We stay current with the research so you are offered modern, proven treatments.

Personalized Plans

Your care is built around your history, your body, and the goals that matter to you.

A Team You Trust

Decades of combined experience across medicine, wellness and aesthetics.

Our Story

A trusted name in Tulsa wellness

EOWC Medical & Aesthetics is located inside the Eastern Oklahoma Wellness Center at 8165 S. Mingo Road in south Tulsa, and we care for patients from Tulsa, Jenks, Bixby, Sapulpa, Glenpool, Sand Springs and Broken Arrow.

We are passionate about advancing medical science. Our clinicians keep learning new techniques, stay current with the latest research, and work together to develop practical, personalized approaches to each patient’s care. That combination — real expertise and real attention — is what we want every patient to feel from the first phone call.

The practice is led by nurse practitioners. That means the person who assesses you, explains your options and writes your plan is the same person who follows up with you afterwards, rather than someone you meet once and never see again.

The office building in south Tulsa where the clinic is located
Meet the Team

The people behind your care

A team with decades of combined experience across medicine, wellness and aesthetics.

Rick Barnes, APRN-CNP

Rick Barnes

APRN-CNP

Rick has practiced as a Nurse Practitioner for more than 22 years. His education is in family medicine, and he has spent time in adult critical care, walk-in urgent care, health and wellness, and hormone optimization. He retired from nephrology in 2022 after more than 20 years caring for people with chronic kidney disease, people on dialysis, and people who had received a kidney transplant. His focus now is on helping every patient reach their optimal level of health so they can live a more fulfilled life.

Christa McKellar, FNP-C

Christa McKellar

FNP-C

Christa is an AANP board-certified Family Nurse Practitioner. She brings over 30 years of varied nursing experience with a strong background in critical care and nephrology. Her experience as an APRN includes primary care, hormone therapy, weight loss therapy, pain management, and Botox therapy.

Malinda Umholtz, Medical Assistant

Malinda Umholtz

Medical Assistant

Malinda has over 30 years of experience as a Medical Assistant. She is passionate about people and has a desire to help in all situations, and providing exceptional service is very important to her. Outside of work she enjoys art in all forms and collects vintage antiques and household items.

Monica, Medical Assistant and Phlebotomist

Monica

Medical Assistant & Phlebotomist

Monica has over three years of experience as a medical assistant and phlebotomist, and a real passion for helping people. She will soon further her education to include Basic IV Therapy. Monica has two young adult children who keep her busy with sporting events and college activities.

Kirsten, Receptionist

Kirsten

Receptionist

Kirsten is in her first year as a receptionist and loves helping people however she can. Outside of work she enjoys the outdoors and spending time with family and friends.

Join our team

We are always glad to meet good people who care about patients.

Patient Stories

Loved by patients across Tulsa

Reviews left by patients, quoted in full and unedited.

Rated 5 out of 5

Rick is the best practitioner! He always listens and goes above and beyond for his patients!

Cyndi Hightower
Rated 5 out of 5

Mr. Barnes’ practice has brought me to a place of optimal health. I had health challenges for two years that he helped me completely turn around in just two visits. Mr. Barnes listens and is compassionate and beyond competent… Highly recommend!

Amanda Pickens
Rated 5 out of 5

Rick goes above and beyond with his level of care, and as his patient, I feel like he truly cares about my well-being. I’ve been with Rick for around 10 years, and I still use him for primary care even though I am in Oklahoma City. I can count on him to answer my medical needs or to get me to the right location in his network.

Christina Toon
Ready When You Are

Ready to book your appointment?

We would love to meet you. Call our team and take the first step toward feeling your best.

Come See Us

Visit EOWC Medical

Inside the Eastern Oklahoma Wellness Center in south Tulsa.

Address

8165 S. Mingo, Suite 200
Tulsa, OK 74133
Inside the Eastern Oklahoma Wellness Center

Hours

Monday, Wednesday & Thursday: 9am–1pm and 3pm–6pm