Protect Your
California
Tenet Health Systems
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]
How to Switch Plans in California
California Health Enrollment Changes Contact Information
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- Online: DHCS Portal
- Phone: 1-800-430-4263
California Open Enrollment 2027
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- 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.