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Protect Your
Access to Care

California

Tenet Health Systems

Desert Care Network Central Valley Doctors Health System

These health systems represent 7 hospitals, 5 imaging centers, 2 behavioral centers, 3 rehab centers, 2 surgery centers, and 29 ambulatory surgery centers. 

  • Doctors Medical Center of Modesto is a Level II Trauma, Level III NICU, and inpatient behavioral health center caring for the Central Valley 
  • Doctors Medical Center of Modesto is also the only comprehensive stroke center in the Central Valley 
  • Desert Regional Medical Center is the only Level 1 trauma center, Level III NICU, and comprehensive stroke center in the Coachella Valley 
  • Hi-Desert Medical Center is the only critical access hospital with Level IV trauma capabilities and stroke ready receiving center serving Joshua Tree 
  • Desert Care Network and Central Valley Doctors Health System care for nearly 55% of Medicaid inpatients in Riverside County, nearly 70% in San Bernardino County, and over 60% in Stanislaus County 
  • ~$3.2 billion of economic impact generated collectively by Desert Care Network and Central Valley Doctors Health System  

Centene by the Numbers in California

~250,000

Health Insurance Exchange (HIX) members 

~182,000

Medicare Advantage members 

~3,267,000

Managed Medicaid members 

~25,000

annual Centene Medicaid patient encounters across Tenet health systems in CA

Centene Brands in California

  • Ambetter from Health Net (HIX)
  • Health Net (Medicaid)
  • Wellcare (Medicare)
  • WellCare by Health Net (Medicare)

Centene Managed Care Coordinator for California 

Brian Ternan
President and CEO
Health Net, Ambetter from Health Net
[email protected]

Centene National Market Leaders

Markets and Commercial:
Daniel Finke
Group President, Markets and Commercial
Centene Corporation
[email protected]

Medicare:
Michael A. Carson
President and CEO
Wellcare, Centene’s Medicare business
[email protected]

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How to Switch Plans in California

California Health Enrollment Changes Contact Information

California Open Enrollment 2027

    • How to enroll online: coveredca.com or dhcs.ca.gov/medi-cal/
    • How to enroll over the phone: (800) 300-1506 for Covered California or (800) 541-5555 for Medi-Cal
    • Open enrollment period: November 1, 2026 – December 31, 2026

Note: Special Enrollment Periods may be available if you experience a specific Qualifying Life Event.