- Harmony
- Harvard Pilgrim Health Care
- Hawaii Medical Services Association
- Health Alliance
- Health Alliance-Midwest, Inc. of IA
- Health Alliance-Midwest, Inc. of IL
- Health Alliance-Midwest, Inc. of IN
- Healthfirst
- Health Net Health Plan of Oregon, Inc of OR
- Health Net Health Plan of Oregon, Inc of WA
- Health Net of AZ
- Health Net of CA
- Health Net of NY
- HealthPartners of MN
- HealthPartners of WI
- HealthSmart
- HealthSpring
- Hennepin Health
- Heritage Provider Network
- Highmark of DE
- Highmark of PA
- Highmark of WV
- Highmark Western New York
- Home State Health
- Hometown Health
- Humana of AL
- Humana of AR
- Humana of AZ
- Humana of CA
- Humana of CO