Dr. Rian Medlin to Join Henry Mayo Newhall Hospital as Vice President and Chief Human Resources Officer

College of the Canyons Human Resources VP Will Replace Hospital’s Longtime Chief Human Resources Officer Mark Puleo, Who Will Be Retiring After a Distinguished Career

VALENCIA, CA   Dr. Rian Medlin will join Henry Mayo Newhall Hospital as Vice President and Chief Human Resources Officer (CHRO).  Medlin will replace longtime Henry Mayo CHRO Mark Puleo, who is retiring early 2025.

For over ten years Dr. Medlin has worked in various human resources roles at College of the Canyons.  For the past four years she has served as Assistant Superintendent and Vice President of Human Resources and Professional Development.

Henry Mayo President and CEO Kevin A. Klockenga said, “We are very pleased to have Dr. Medlin join our executive team.  Her broad experience overseeing College of the Canyons’ Human Resources department will serve her well in her new role at Henry Mayo.”

Dr. Medlin holds a Doctor of Education degree from USC, a master’s degree in Political Science from Cal State Northridge, and a Bachelor’s degree in Art History from San Diego State University.

Mark Puleo joined Henry Mayo as Vice President and Chief Human Resources officer in 2002.  During his time at Henry Mayo he oversaw the expansion of the hospital’s workforce from 800 employees to just under 2,000 today.  He has received numerous honors, including being named San Fernando Valley Business Journal’s Non-Profit Human Resources Professional of the Year in 2018.  He has been an active member of the Santa Clarita Valley community for many years, most recently serving on the Bridge to Home Board of Directors. Puleo will continue with Henry Mayo to oversee the hospital’s nurse union negotiations, currently underway, before formally retiring.

“We are very grateful to Mark for his dedication to Henry Mayo and our community,” said Klockenga.  “In addition to his exemplary service as head of Human Resources, he and his wife Jennifer have been generous philanthropic supporters of Henry Mayo. We wish him the best in his well-deserved retirement.”

ABOUT HENRY MAYO – Henry Mayo is a 357-bed, not-for-profit community hospital and trauma center. Your family can count on us for critical life-saving services and primary and specialized care. Our emergency department is open 24/7 to serve you, and a panel of physicians, both specialists and sub-specialists, are available around the clock for your most critical needs.

We also provide a wide range of care through a number of services: a popular maternity department, lactation support, and childbirth education program, highly respected cancer program jointly operated with Keck Medicine of USC, advanced primary stroke center, an acute rehab unit that helps individuals regain their independence, top-notch cardiovascular services, outpatient primary care, urgent care, and wound care services, highly attentive physical and occupational therapies, and a number of inpatient and outpatient surgical services.

The patient care teams who come to work at Henry Mayo every day are dedicated to providing the best possible care to you and your family.