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The Proton Center of Arkansas
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The Proton Center of Arkansas

Radiation Oncology Center

The Proton Center of Arkansas

The most advanced radiation therapy for children and adults with cancer.

Proton Center at UAMS Health

Appointments

The Proton Center of Arkansas, part of the new UAMS Health Radiation Oncology Center, is now accepting calls from referring physicians and interested patients to schedule a phone consultation or clinic appointment.

Call 501-664-4568

The Proton Center of Arkansas Collaborators

UAMS is honored to collaborate with Arkansas’ other leading healthcare institutions and Proton International to bring this advanced treatment to cancer patients in our region.

Arkansas Children’s Hospital

Arkansas Children’s, Inc. is the only healthcare system in the state solely dedicated to caring for Arkansas’ 700,000 children.

Visit Their Website

Baptist Health

Baptist Health is Arkansas’ most comprehensive health care organization with more than 200 points of access.

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Proton International

Proton International has an experienced team dedicated to bringing proton therapy to patients.

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UAMS Health

With clinics covering nearly every medical need, we provide world-class treatment in a comforting, patient- and family-centered environment.

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What is Proton Therapy?

Proton therapy is the most advanced form of radiation to treat cancer in the world today. Proton’s pin-point accuracy makes it an effective treatment for a wide range of solid tumors that are hard to reach with standard X-ray radiation.

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About the Radiation Oncology Center

Learn more about the innovative and advanced radiation treatments.

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Proton Therapy Frequently Asked Questions

Proton therapy is the most advanced form of radiation treatment that delivers a pencil-thin beam of proton energy to the precise site of a cancerous tumor.

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Proton Center of Arkansas Physician Resources

Take a closer look all the benefits proton therapy can offer for your patients.

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Consults and Referrals

If you have a patient you would like us to evaluate for proton therapy, please call us. All patients must be evaluated by a UAMS Health radiation oncologist to be considered for proton therapy treatment. We see patients within five days of referral.

Call 501-664-4568

ASCO: Proton therapy demonstrates advantages in Phase III head and neck cancer trial

Proton therapy achieved similar clinical outcomes while reducing malnutrition and feeding-tube dependency compared with traditional radiation therapy

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New Study in Red Journal Reveals Growth in Use of Proton Therapy for Treating Wider Variety of Conditions

The National Association for Proton Therapy (NAPT), the nation’s leading organization dedicated to increasing patient access to one of the most advanced cancer treatments, announced the publication of a study in the International Journal of Radiation Oncology-Biology-Physics (Red Journal) that examines the use of proton therapy to treat a growing number of conditions and tumor sites.

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Proton Center News

<p>Mahlon Maris, M.D., celebrates with his family after ringing the bell at the Proton Center of Arkansas, marking the completion of his final proton radiation treatment for larynx cancer.</p>
<div><a class="more" href="https://news.uams.edu/2025/08/08/a-voice-recovered-physician-fights-larynx-cancer-with-proton-therapy/uams-news-featured-images-31/">Read more</a></div>

A Voice Recovered: Physician Fights Larynx Cancer with Proton Therapy

When longtime Harrison, Arkansas, family physician Mahlon Maris, M.D., began experiencing hoarseness in late 2023, he chalked it up to a bad bout of COVID-19 and the lingering inflammation that can sometimes follow. But months passed, and his voice still hadn’t returned. It was the first sign that something more serious was going on. “I…

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Father’s Cancer Battle Inspires Son’s Research

When Don Tackett learned that he had prostate cancer, his first call was to his son, Alan. “It was difficult to hear,” said Alan Tackett, Ph.D., a leading UAMS cancer researcher whose life’s work collided with his father’s health that day. “I’m used to researching cancer, but not my father being a cancer patient,” said…

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Proton Center of Arkansas Marks 100th Patient Milestone

Arkansas’ first and only proton radiation center has treated 100 patients since opening in September 2023. To commemorate the milestone, Carson Placker, 7, of Mountain Home, and Bob Sanders, 71, of Conway, rang the end of treatment bell together June 14, surrounded by their physicians and family. Though 64 years apart in age, the two…

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Mailing Address: 4301 West Markham Street, Little Rock, AR 72205
Phone: (501) 686-7000
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