Committed to the delivery of personalized care for all, with a focus on those most in need, and leading the transformation of healthcare.

Each member of the Ascension St. John Executive Leadership team is committed to living and fulfilling our Mission of caring for all persons, with special attention to those most vulnerable, each and every day. Our first priority is the health and safety of our patients, associates, and providers. We take great pride in the exceptional care and experience our 6,000+ team members provide to those who have entrusted us with their care across our 6 hospitals and more than 90 primary care, specialty care and urgent care locations.

We welcome your feedback, questions, or suggestions by contacting our leadership team by phone at 918-744-2180 or email at An Ascension St. John executive leader will respond within three business days. We truly believe that listening to those we are privileged to serve is how we will continue to be the leading provider of Catholic healthcare in northeastern Oklahoma and southeastern Kansas.


Jeffrey D. Nowlin, FACHE
CEO, Ascension St. John
Ascension Oklahoma Ministry Market Executive

Candice Evans
Director, Marketing & Communications, Ascension St. John

John Forrest, MD
Chief Medical Officer, Ascension St. John

Lucky Lamons, MCJ, MPA, MHR
Chief Advocacy Officer and President Ascension St. John Foundation

Jason Lepak, MD
President & Clinical Dyad Leader, Ascension Medical Group St. John

Michael J. McBride, FACHE
Regional President & Chief Operating Officer, Ascension St. John

Ramona Miller
Chief Operating Officer, Ascension Medical Group St. John

Ann Paul, DrPH, MPH
Chief Strategy Officer, Ascension St. John

Ron Tremblay, BCC, LPC
Chief Mission Integration Officer, Ascension St. John

Rebecca Tucker
Chief Financial Officer, Ascension St. John

Mark Wilkerson
Associate General Counsel, Ascension St. John

Jennifer Workman
Senior Director, Human Resources, Ascension St. John

Timothy Young, MD
Chief Clinical Officer, Ascension St. John