MemorialCare Medical Group 60th Anniversary

Fountain Valley, California – For 60 years, MemorialCare Medical Group, formerly known as Bristol Park Medical Group, has proudly cared for its community through the most challenging of times. From flu season to the COVID-19 pandemic, MemorialCare has remained steadfast in its commitment to treating every one of its 130,000 patients like family. In celebrating its 60th anniversary, MemorialCare Medical Group is taking a nostalgic look back at its rich history, thanking those who have contributed to its success, and peeking through the looking glass as it prepares for what lies ahead. 

“In celebrating our 60th anniversary, we celebrate MemorialCare Medical Group’s continued success and express our gratitude to the countless patients that have entrusted us with their health,” said Mark Schafer, M.D., CEO, MemorialCare Medical Group. “We look forward to the next 60 years of growth as we continue to work with our exceptional team of doctors, nurses and staff in delivering high quality, patient-centered care.”

Bristol Park Medical Group opened its doors on May 5, 1961 thanks to the vision of its founders Drs. Jack Hagadorn and Reinhard Marthen, who along with former Costa Mesa Mayor Jack Hammett, chose a location that had been a Costa Mesa bean field to build their first medical office. Soon after, the Medical Group rapidly expanded its bandwidth to meet the growing demand of Orange County’s burgeoning population,

In early 2011, MemorialCare announced its partnership with four Southern California physician groups – Bristol Park Medical Group, Memorial Family Medicine Group, Memorial Prompt Care and Family Medicine, and Specialty Physicians of Long Beach – as a nonprofit medical management organization, also known as a medical foundation, which contracts with physician groups to offer patients comprehensive medical care. As part of this partnership and affiliation with MemorialCare, patient’s gained access to its four premier hospitals – MemorialCare Long Beach Medical Center, MemorialCare Miller Children’s & Women's Hospital Long Beach, MemorialCare Orange Coast Medical Center and MemorialCare Saddleback Medical Center.

Today, MemorialCare Medical Group is comprised of more 30 locations and more than 300 primary care and specialty physicians, including internal medicine, family medicine, pediatrics, geriatric medicine, pulmonology, gastroenterology, neurology, physiatry, sleep medicine and cardiology as well as offering laboratory and radiology services and urgent care. Caring for patients of all ages from Torrance in the South Bay down to San Clemente, MemorialCare Medical Group is continually honored by numerous organizations, obtaining the Standard of Excellence Elite Status from America’s Physician Group (APG) and consecutively named among The Orange County Register Best of Orange County-Medical Groups and Top Workplaces.

We are honored and remain dedicated to fulfilling our founding members’ mission of improving access to innovative and compassionate medical care, and as we celebrate our 60th anniversary, we humbly reflect on the difference we have made in our patients’ lives because without their trust, loyalty, and inspiration, the incredible vision of the founding physicians would have never been realized.

Mark Schafer, MD, CEO, MemorialCare Medical Group

MemorialCare Medical Group includes 1,700 physicians specializing in internal medicine, family medicine, pediatrics; specialties like oncology, cardiology, pulmonology, gastroenterology, surgery and urgent care. Caring for patients of all ages throughout Orange and Los Angeles counties, it is continually honored among California’s Top Performing Medical Groups by Integrated Healthcare Association in its Patient Assessment Survey, ranking in the 98th percentile and top three medical groups in California. MemorialCare Medical Group is also consecutively named among Orange County Register’s Best of Orange County Medical Groups and Top Workplaces as well as selected Best Medical Groups by Long Beach Press Telegram, Grunion Gazette, Beachcomber, San Clemente Times, Dana Point Times and Capistrano Dispatch. Visit

About MemorialCare

MemorialCare, a national leader in value-based care and evidence-based medicine with 225 care locations throughout Orange and Los Angeles counties, is the largest health system headquartered in Orange County. MemorialCare includes top hospitals – Orange Coast Medical Center, Saddleback Medical Center, Long Beach Medical Center and Miller Children’s & Women’s Hospital Long Beach; MemorialCare Medical Group and Greater Newport Physicians; MemorialCare Research, MemorialCare Select Health Plan and numerous convenient outpatient ambulatory surgery, medical imaging, urgent care, breast health, physical therapy, dialysis and primary care and specialty care centers. Accolades include Best Health System, Best Workplaces, Top Performing Medical Groups, Magnet Nursing Excellence for all MemorialCare hospitals, 10 Largest Children’s Hospitals, Top 50 U.S. Hospitals, Top 50 Cardiovascular Hospitals, Best Orthopedic Hospitals, 100 Best Hospitals-Spine and Prostate Surgeries, Society for Obstetric Anesthesia and Perinatology Center of Excellence, Orange County’s first Accredited Geriatric Emergency Department, Best of Orange County and Long Beach Hospitals and Medical Groups honors from seven Southern California newspapers, U.S. News & World Report Best Hospitals and "high performing" honors in 31 clinical categories, and Newsweek Top 100 Hospitals, Best Maternity Hospitals, Best Hospitals in the World and more.