Today CEP America is one of the largest democratic physician groups in the United States.
2014 CEP America launches anesthesiology practice line.
2013 CEP America hospitalists become full and equal Physician Partners.
2011 CEP America merges with Sutter Emergency Medical Associates (SEMA), caring for 200,000 more patients in the Sacramento, CA region. CEP America now cares for over a quarter of all patients who visit an emergency room in California.
2009 CEP America expands across the country with new contracts in Arizona, Illinois, and Washington.
2005 CEP is awarded its first two out-of-state contracts, Adventist Medical Center in Oregon and DeKalb Medical Center in Georgia. California Emergency Physicians becomes CEP America. 
2003 RME® is widely adopted throughout CEP's hospital sites, resulting in significant decrease in patient wait times.

CEP becomes accredited to offer a Continuing Medical Education (CME) credits.
2001 Pioneers Memorial Hospital launches the Rapid Medical Evaluation (RME)® Program, allowing the emergency department treatment process to begin as soon as a patient arrives.
2000 CEP establishes its hospital medicine division.

Prentice Tom, MD, is appointed CEP’s first Chief Medical Officer (CMO). CEP has 40 of the hospital contracts that it currently manages.
1993 MedAmerica Billing Services, Inc. (MBSI), forms to provide coding, billing, auditing, and reporting services to emergency medicine and other types of physician practices.
1985 CEP establishes its Urgent Care Division and hires its first Physician Assistant.
1975 CEP reorganizes as a General Partnership and adopts the democratic Partnership structure that continues to function today.

CEP moves its headquarters from Dr. Stambaugh's garage to an office space in Fresno, CA, and forms MedAmerica, a medical practice support company
1971 California Emergency Physicians (CEP) is formed by Roy Stambaugh, MD, as a loose affiliation of physicians providing emergency medicine services to hospitals.

CEP signs its first ED contract with Palomar Medical Center in Escondido, CA.