Robert Pretzlaff, M.D., M.B.A, Has Joined Henry Mayo Newhall Hospital Vice President and Chief Medical Officer.
Dr. Pretzlaff previously held leadership roles in the University of California Davis Health System as well as with the Dignity Health – St. Rose Dominican Hospitals in Henderson, NV. At Dignity, Dr. Pretzlaff was the Regional Chief Medical Officer from 2014 to 2016, and then promoted to Chief Physician Executive of the Nevada Service Area and President of the Dignity Health Medical Group in Nevada. More recently, Pretzlaff served as Chief Medical Officer for Lumeris, a St. Louis-based healthcare consulting firm.
“We are pleased to have Dr. Pretzlaff join our leadership team at Henry Mayo,” said Roger E. Seaver, Henry Mayo’s President and CEO. “He has been successful in building physician engagement; incentivizing physician contracts; improving quality, risk management and peer review processes; and moving his hospitals through The Joint Commission accreditation.”
Born and raised in Michigan, Dr. Pretzlaff received a BA in Philosophy from the Michigan State University with a minor in Chemistry, and an MS degree in Biology from Wayne State University, where he also received his medical degree. His interest in genetics led him to do a residency in Pediatrics at the University of Michigan Medical Center in Ann Arbor, Michigan, and then a fellowship in Critical Care Medicine at Children’s National Medical Center in Washington DC.
“We congratulate Dr. Pretzlaff on his achievements to date and both welcome him and look forward to supporting him as he works to help provide medical leadership for the Santa Clarita Valley,” Seaver added.
ABOUT HENRY MAYO – Henry Mayo Newhall Hospital is a 357-bed not-for-profit acute care hospital serving the Santa Clarita Valley since 1975. The hospital recently opened a new patient tower that includes 90 private patient rooms and a new Center for Women and Newborns, also with all private rooms. Henry Mayo is an Advanced Primary Stroke Center and a STEMI Receiving Center. The hospital features state-of-the-art inpatient facilities, a neonatal intensive care unit, catheterization lab, infusion center, breast center and an outpatient surgery center. Additional services include cardiovascular, trauma, emergency, intensive care, neonatal intensive care, maternity, surgery, nursing, wound care, spine and joint, behavioral health, and acute rehab, as well as cancer, imaging, lab, digestive, respiratory services and physical and occupational therapies. Henry Mayo Newhall Hospital is located at 23845 McBean Parkway, Valencia, CA 91355-2083. For more information, visit www.henrymayo.com or call 661.200.2000.
ADVERTISE WITH US
Frontier Toyota Partnering with Luxury Collision Group
Frontier Toyota is proud to partner with Luxury Collision Group, bringing together two trusted names to elevate the standard of automotive care in Santa Clarita.Luxury Collision Group is known as a premier destination for luxury automotive collision repair,...
Medical Directory May 2026
YOUR GUIDE TO SANTA CLARITA VALLEY MEDICAL DOCTORS AND PROFESSIONALS We Appreciate Our Healthcare Workers! Audiology Audiology AssociatesKevin Boulder, Au.D.,CCC.AJohn Davis, Au.D.25425 Orchard Village Road, Suite 220,Valencia661-284-1900Fax:...
Mental Health and Wellness Go Hand in Hand – New U Therapy Center & Family Services
Mental health is often something people talk about as something separate from the rest of life. But in reality, it is closely tied to everything we do each day. How we sleep, how we handle stress, how we eat, how we move through relationships, and even the...
ABOUT THE MAGAZINE
Santa Clarita Magazine has set a high standard for excellence in advertising for over 36 years. A family owned and operated business, Santa Clarita Magazine has grown with the Santa Clarita Valley since 1990 and become the #1 place to advertise locally.
FOLLOW US
SANTA CLARITA MAGAZINE
PO Box 801570
Valencia Ca 91380
For Advertising information
Call or Text: 1 (661) 294-4444


