Si-Si A-Pe-Txa Board


The Osage Nation Health Authority (ONHA) was enacted by the Osage Nation Congress through Bill Number ONCA 11-116 on September 30, 2011, and approved by Principal Chief John D. Red Eagle on October 5, 2011. It is the governing board responsible for consolidating and implementing the organizational structure of the Osage Nation Health System. It is organized to make decisions regarding the operations of all services and facilities of the Osage Nation Health System. And provide a framework for planning, directing, coordinating, delivering, and improving health services responsive to the community and patient needs and improving patient care outcomes.

ONHA consists of five (5) members who the Principal Chief appoints with the advice and consent of the Osage Nation Congress. The ONHA membership must include at least three (3) enrolled Osage tribal members. All board members will serve a term of three (3) years. 

Contact Information

Phone: 918-287-9798

Mailing Address: 1230 W. Main St.; Pawhuska, OK 74056

Health Authority Board 2023 Meeting Schedule

Board Members

Cindra Shangreau, Chair

Term: 9/1/25

Cindra Shangreau (Osage/Lakota) was appointed to the Health Authority Board by Chief Geoffrey Standing Bear on 12/19/2019. Cindra is a retired clinical pharmacy specialist. Cindra graduated from Pawhuska High School in 1974 and earned her Bachelor of Science degree in pharmacy from Southwestern Oklahoma State University in Weatherford in 1979. She worked at pharmacy posts in Tulsa and at Pawnee IHS and served the majority of her career, over 20 years, as a pharmacist with the Veterans' Administration Health Care System in Buffalo, NY and in Oklahoma City, OK. Cindra's father, Edward L. (Sonny) Shangreau, was one of the first Community Health Representatives for the Osage Nation and he instilled in her the desire to become involved in health services. I am humbled to be following the footsteps of those who went before to better the healthcare of the Osage people.

Michael Bristow, Vice Chair 

Term: 9/1/24

Michael Bristow is a speech-language pathologist employed at Encompass Home Health, Inc. in Tulsa. Mr. Bristow received his Bachelor of Science biology degree at Northeastern State University, Tahlequah, and completed his Master of Science Speech-Language Pathology degree at Northeastern State University. He is a licensed Oklahoma Board of Examiner for Speech-Language Pathology and Audiology and the American Speech-Language-Hearing Association (ASHA).

Tim Shadlow, Board Member

Term: 9/1/24

Hailey Kramer, Treasurer 

Term: 9/1/24

Board Agendas & Minutes


2022 Minutes

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