Insurance and Billing

Participating IPA/Medical Groups:

  • AAMG – Asian American Medical Group
  • ABMG - Alta Bates Medical Group
  • Affinity Medical Group
  • APCMG – Access Primary Care Medical Group
  • BTMG - Brown & Toland Physicians
  • CCHCA – Chinese Community HealthCare Association
  • CFMG – Children’s First Medical Group
  • HPMG - Hill Physicians Medical Group
  • Imperial Health Holdings
  • Jade Health Care Medical Group
  • Sutter East Bay Medical Foundation

Participating Health Plans:

  • AARP
  • ACPN – America’s Choice
  • Alameda Alliance
  • Aetna
  • Anthem Blue Cross (includes Covered California)
  • Beech Street
  • Blue Shield (includes Covered California)
  • Brand New Day
  • Canopy Health
  • Care 1st Health Plan
  • CCHP – Chinese Community Health Plan (includes Covered California)
  • CEI – Centers for Elders Independence
  • Cigna HealthCare
  • Coventry
  • First Health Network
  • FPN – Fortified Provider Network
  • Galaxy
  • Health Net
  • Health Smart
  • HPSM – Health Plan of San Mateo
  • Humana
  • IHG - InterPlan
  • Medi-Cal
  • Medicare
  • MultiPlan
  • NEMS – North East Medical Services
  • Network by Design
  • NPPN – National Preferred Provider Network
  • On Lok Senior Health Services
  • Oscar
  • PacifiCare
  • San Francisco Health Plan
  • SCAN Health Plan
  • Secure Horizons
  • SHCA - Stanford HealthCare Advantage
  • Sutter Health Plus
  • Sutter Select
  • Three Rivers
  • TriCare Military West
  • United HealthCare
  • USA Managed Care
  • Western Health Advantage

This is a partial list of GGU participating PPO and HMO health plans and not all of our offices are participating with each plan. We encourage you to contact the office you plan to visit and confirm if they participate with your specific insurance plan. We also encourage you to contact your insurance carrier to confirm GGU participation and coverage information.

Non-Participating Health Plans

If we are not contracted with your specific insurance carrier, our contracting department will make every attempt to contact your insurance and reach an agreement. However, there are few instances where a favorable outcome is not possible.


Please be advised that GGU has contracted with Data Management Services Organization (DMSCO), Inc. for all of its medical billing needs. If you have questions regarding your billing please call DMSCO at (800) 553-7878.