Why do Native Americans face longer waits for cancer treatment than other patients?

Grace Fox's mother had cancer last year. Fox, a Seminole tribal citizen and health policy analyst at the University of Oklahoma, watched her mother navigate a system where time was critical and bureaucratic processes were slow. Her mother ultimately bypassed the Indian Health Service because waiting could have cost her life.

"That, on its own, shines a light upon the challenges that exist," Fox said. "It shows why tribes and tribal citizens could benefit from having more information and improved pathways to care."

Fox has now channeled that experience into a formal policy document. The Sovereign Report, published by the University of Oklahoma's Native Nations Center for Tribal Policy Research, examines how the Indian Health Service's Purchased/Referred Care (PRC) program intersects with cancer screening, diagnosis, treatment, and follow-up for eligible tribal citizens.

What Purchased/Referred Care actually does

PRC is the mechanism through which the Indian Health Service authorizes and pays for care delivered by outside providers when services are not available locally. For many tribal citizens, particularly those needing specialty oncology care, PRC serves as the only bridge to treatment.

The report walks through the program's structure: eligibility requirements, notification timelines, medical priority levels, alternate-resource coordination, and funding constraints. Each of these steps represents a potential delay point. For cancer patients, where early intervention correlates strongly with survival, delays at any stage can have severe consequences.

The numbers underscore the urgency. American Indian and Alaska Native populations experience later-stage diagnoses, lower screening participation, and higher mortality rates compared to the overall U.S. population. Cancer has become an increasingly pressing public health priority in Indian Country.

Oklahoma's particular landscape

While the report addresses national data and federal regulations, it also includes state-specific information for Oklahoma, home to more than 39 tribal nations, 38 of which hold federal recognition. All 77 Oklahoma counties are designated PRC delivery areas under federal guidelines. But that designation does not guarantee access. Individuals must still meet all eligibility, documentation, and funding requirements before authorization.

"When someone is facing a cancer diagnosis, timing matters," Fox said. "The Purchased/Referred Care program often serves as the bridge to specialty oncology services that aren't available locally. Understanding that process -- from referral to authorization to payment -- can make a meaningful difference for patients and for tribal health systems."

Options under existing sovereignty

The report's final section outlines policy options that tribes can consider without waiting for federal reform. These include exercising self-determination and self-governance authorities, forming regional collaborations, and adopting alternative service-delivery models such as mobile screening units and teleoncology -- the use of telemedicine to deliver cancer care remotely.

Care coordination and navigation also receive attention. The report examines how tribes can build systems that guide patients through the referral process more efficiently, reducing the gaps where patients fall through.

Fox emphasized that the report is analytical, not prescriptive. "We are not telling tribes what to do. We are providing research-driven analysis and options for consideration that tribes can evaluate within their own governance structures and priorities."

Scope and limitations

The report is a policy analysis, not a clinical study. It does not collect new patient outcome data or conduct original epidemiological research. Its strength lies in synthesizing existing federal regulations, national data, and program structures into a single accessible document designed for tribal decision-makers.

The Oklahoma-specific sections provide useful local detail but may limit direct applicability to tribes in other states with different PRC delivery structures. The report also does not address the broader question of IHS underfunding, which many health policy experts identify as the root cause of access delays.

Still, the document has already drawn interest beyond its intended audience of tribal leaders, reaching clinicians, researchers, and health partners both in Oklahoma and nationally. Fox noted that conversations with health leaders and policymakers in Washington, D.C., have begun around how PRC policies affect cancer care access in tribal communities.

The report was developed through the Improving Cancer Outcomes in Native American Communities (ICON) grant, a collaborative effort between the Native Nations Center and the Native American Center for Cancer Health Equity at the Stephenson Cancer Center.