About WMMC

Western Missouri Medical Center

About WMMC

Want to learn more about Western Missouri Medical Center (WMMC)? WMMC is a fully-accredited acute care facility located in Warrensburg, Missouri. As a not-for-profit, county medical center, WMMC offers comprehensive health care services to residents of Johnson County and west central Missouri.


Western Missouri Medical Center was founded on July 31, 1963, as Johnson County Memorial Hospital. After over 20 years of expansion and growth, JCMH became Western Missouri Medical Center on January 1, 1986.

In the years since, Western Missouri Medical Center has continued to expand our services and bring many new specialties to Johnson County allowing area residents to receive quality care closer to home. Check out more of our history here!

Hospital History


Mission + Values

WMMC’s mission is to work as one to serve our community with excellence and compassion.

Our vision is to create a legacy of commitment to exceptional patient and employee experiences.

STARR Program



cares enough to do his / her best



works with others to accomplish great things



makes decisions and accepts the consequences



treats others with dignity



creating a positive work environment

Western Missouri Medical Center is proud to have staff, providers, and volunteers who live through our values, recognized by the STARR program. To nominate a staff member, provider or volunteer that displays these values through their work, please fill out the form here.

STARR Nomination Form

Western Missouri Medical Center Thanks our Board of Trustees for Their Dedication and Service to Our medical Center and Greater Community.

Photographed left to right: Sue Hook, Vice Chair; Larry Purcell, Chair; Madison Harter, Secretary; Rita White, Trustee; and Stephanie Truex, Treasurer.


Darinda J. Dick, MSN, RN, President/Chief Executive Officer

Darinda was named President/CEO by the WMMC Board of Trustees on Feb. 26, 2016.

She joined WMMC as Vice President of Patient Care Services/Chief Nursing Officer (CNO) in October 2013. During her tenure as CNO, she successfully led efforts for WMMC receiving national certifications through The Joint Commission in Normal Delivery and Bariatric Surgery by the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program. In addition, Darinda led numerous initiatives to improve patient satisfaction and financial stability.

With over 20 years of diverse clinical nursing experience and proven success at leading and transitioning cultural change, Darinda has served in a variety of leadership capacities at healthcare facilities including HCA Research Medical Center in Kansas City, MO; Truman Medical Center Lakewood in Kansas City, MO; and St. Joseph’s Medical Center in Kansas City, MO.

Darinda earned her Bachelor of Science in Nursing at the University of Central Missouri and her Master’s of Science in Executive Nursing Leadership from Webster University.


Dean Ohmart, Vice President of Financial Services/Chief Financial Officer

Dean Ohmart was named WMMC’s Vice President of Financial Services/Chief Financial Officer in June 2017.

With over thirty-five years of progressive accounting experience in multi-site locations, Dean has held various leadership roles throughout his career. Prior to WMMC, Dean worked with Coffeyville Regional Medical Center as CFO in 2014 – 2017. Prior to that role, Dean was the CFO at Ransom Memorial Hospital (RMH) and ended the last 10 years of his 13-year career there with over $2 million dollars in Operations Profit. With Dean’s leadership and expertise, RMH received over $10,000,000 in Medicaid DSH payments. Furthermore, the Accounts Receivable was reduced from over 100 days to less than 60 days and the hospital operated with no-long term debt. Dean graduated Summa Cum Laude from Fort Hays State University where he earned his Bachelors of Science in Business Administration.

Dean has a passion for developing the financial capabilities of the hospital leaders to garner overall financial success for organizations. His leadership, passion and financial experience will prove to be an asset to our medical center’s mission and vision.


Renee Twenter, RN, MBA, Chief Operating Officer/Compliance Officer

Renee Twenter was appointed as the Chief Operating Officer and Compliance Officer on Oct. 11, 2019.

Renee graduated with a major in nursing and a minor in accounting. She also completed her masters of business administration in 2010. She became a nurse in 1988 and served in various leadership capacities before serving as a regional administrator overseeing five agencies for First American Home Care in 1994. She came to WMMC in 1997 as a staff OB nurse, where she progressed into leadership roles as director of obstetrics, interim vice president of patient care services/chief nursing officer, women and children’s service line director, and most recently as the ambulatory services and outreach executive.

Renee has been a part of the WMMC team for more than 22 years, with extensive experience as a results-driven leader who is dedicated to making WMMC our region’s choice for health care. Highlights from her career include overseeing The Joint Commission (TJC) for Hospital Accreditation and Certification for Normal Delivery of Newborns Gold Seal of Approval®. WMMC was one of only four hospitals in the country to be accredited at that point. Additionally, she led the Revenue Cycle Improvement Team since its launch in February 2019, which to date, has increased revenue by $3.6 million. She also oversaw the transition to move all primary care clinics under the Blue Cross Blue Shield Patient-Centered Medical Home model.


Tara Carlyle, MBA, Strategy & Development Executive
Tara Carlyle, MBA, was appointed to the Strategy & Development Executive on April 10, 2020. She received her Master of Business Administration with an emphasis in marketing, which is backed by a Bachelor of Science in public relations and a minor in marketing. She has served WMMC since 2006 and has over 10 years of marketing/public relations experience, over six years of healthcare leadership experience and four years of philanthropy experience. In her previous leadership roles at WMMC, Tara was instrumental in the development and launch of the WMMC Foundation, which includes a Board of Directors and six committees with 70+ ambassadors. During her tenure, the Foundation increased employee giving by 47%, resulting in 96% employee participation. She also led all fundraising initiatives, which resulted in $235k being raised in the first year of fundraising for the Foundation and over $700k since 2016.Additional highlights from her career include leading multiple branding campaigns, launching a digital reputation management and patient ambassador program and launching several service lines, including Building Blocks Pediatrics and the Cancer Center.

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