William B. Hillegass, MD, PhD, MPH
Specialties: Cardiology
Gender: Male
Biography: William Hillegass, MD, PhD is a Professor of Medicine and Data Science. His cardiovascular practice spans 30 years of interventional and now general cardiology.
Training. Dr. Hillegass received his MD from Harvard Medical School and MPH (Research Methods) from Harvard School Public Health. His internal medicine training was at the Brigham and Womens Hospital. Cardiology training at Duke University Medical Center. Biostatistics PhD earned at the University of Alabama at Birmingham.
Research. Dr. Hillegass' research experience includes clinical trials, large database studies, and comparative effectiveness analyses focusing on a broad range of cardiovascular conditions. These have included antithrombotic therapies, acute coronary syndromes, peripheral and cerebral vascular diseases, heart failure, diabetes, hypertension, dyslipidemia, and endovascular interventional therapies.
Practice Locations
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Northeast Jackson - UMMC
5903 Ridgewood Road, Jackson, MS 39211 View Location |
Accepted Insurance Plans
The University of Mississippi Medical Center accepts all plans, but may not be an in-network provider with your plan. We encourage you to contact your insurer and ask if the plan is in network with UMMC. Always contact your insurance carrier for specific coverage information.
Network Participation - 2026MississippiCAN and CHIP [Managed Care programs promulgated by the Mississippi Division of Medicaid]- Molina Healthcare of Mississippi, Inc.
- Magnolia Health (Centene)
- TrueCare
Affordable Care Act (ACA) Marketplace [Individual plans offered on healthcare.gov]- Ambetter from Magnolia Health (Centene)
- Molina Healthcare of Mississippi, Inc.
- UHC Marketplace (Madison only)
Medicare Advantage- Devoted Health Plans: PPO, HMO, DSNP, CSNP
- HealthSpring Plans: PPO, HMO, DSNP
- Humana: PPO, HMO, DSNP, CSNP, ISNP
- United Healthcare Plans: PPO, HMO, DSNP, CSNP, ISNP
- WellCare (Centene) Plans: PPO, HMO, DSNP
Commercial - Group and Individual- Aetna Plans: PPO, HMO [Includes all facilities except UMMC Madison]
- BCBSMS Plans: BlueCardPPO, State Health Plan (AHS), Federal Employee Plan (FEP)
- Cigna Plans: PPO, HMO
- United Healthcare Plans: PPO, HMO (Includes plans administered by UMR, UnitedHealth Group's wholly owned third-party administrator (TPA) subsidiary)
- Molina Healthcare of Mississippi, Inc.
- Magnolia Health (Centene)
- TrueCare
Affordable Care Act (ACA) Marketplace [Individual plans offered on healthcare.gov]- Ambetter from Magnolia Health (Centene)
- Molina Healthcare of Mississippi, Inc.
- UHC Marketplace (Madison only)
Medicare Advantage- Devoted Health Plans: PPO, HMO, DSNP, CSNP
- HealthSpring Plans: PPO, HMO, DSNP
- Humana: PPO, HMO, DSNP, CSNP, ISNP
- United Healthcare Plans: PPO, HMO, DSNP, CSNP, ISNP
- WellCare (Centene) Plans: PPO, HMO, DSNP
Commercial - Group and Individual- Aetna Plans: PPO, HMO [Includes all facilities except UMMC Madison]
- BCBSMS Plans: BlueCardPPO, State Health Plan (AHS), Federal Employee Plan (FEP)
- Cigna Plans: PPO, HMO
- United Healthcare Plans: PPO, HMO (Includes plans administered by UMR, UnitedHealth Group's wholly owned third-party administrator (TPA) subsidiary)
- Devoted Health Plans: PPO, HMO, DSNP, CSNP
- HealthSpring Plans: PPO, HMO, DSNP
- Humana: PPO, HMO, DSNP, CSNP, ISNP
- United Healthcare Plans: PPO, HMO, DSNP, CSNP, ISNP
- WellCare (Centene) Plans: PPO, HMO, DSNP
Commercial - Group and Individual- Aetna Plans: PPO, HMO [Includes all facilities except UMMC Madison]
- BCBSMS Plans: BlueCardPPO, State Health Plan (AHS), Federal Employee Plan (FEP)
- Cigna Plans: PPO, HMO
- United Healthcare Plans: PPO, HMO (Includes plans administered by UMR, UnitedHealth Group's wholly owned third-party administrator (TPA) subsidiary)
Transplant Only Networks- Optum Plan: Commercial • Programs: Solid Organ, BMT, VAD
- Emerging Therapy Solutions (ETS) Plan: Commercial • Programs: Solid Organ, BMT, CAR-T, VAD
- Interlink Plan: Commercial • Programs: Solid Organ, BMT, CAR-T
- Celtic Plans: Ambetter, WellCare, Magnolia Health MississippiCAN, Magnolia Health CHIP • Programs: Solid Organ, BMT
- Cigna Lifesource Plan: Commercial • Programs: Solid Organ, BMT, CAR-T, VAD
Dental- Avesis Plan: MississippiCAN and CHIP (TrueCare)
- Always Care/Unum Plan: Commercial
Vision- Avesis Plan: MississippiCAN and CHIP (TrueCare)
- Always Care/Unum Plan: Commercial
Rental Networks (Utilized by self-funded employer group plans and third-party administrators (TPAs))- Mississippi Physicians Care Network (MPCN) [If MPCN is present on a Member/Subscriber ID, all UMMC facilities and providers are in-network regardless of TPA.]
- First Choice Health Plan
- Claritev (formerly Multiplan)
- Zelis
Government Programs- Humana Military Plan: Tricare
- United Healthcare Plan: Veterans Affairs Community Care Networks
Plans and Payors UMMC is not in-network with as of April 1, 2026- Oscar Health Plan: ACA Marketplace [Final negotiations taking place now. Anticipate in-network participation, effective June 1, 2026.]
- Cigna (Connect EPO) Plan: ACA Marketplace
- American Health Advantage Plan: Medicare Advantage
- Patrius Health (BCBSMS) Plan: Medicare Advantage
- Aetna Plan: Medicare Advantage
- Avesis Plan: MississippiCAN and CHIP (TrueCare)
- Always Care/Unum Plan: Commercial
Vision- Avesis Plan: MississippiCAN and CHIP (TrueCare)
- Always Care/Unum Plan: Commercial
Rental Networks (Utilized by self-funded employer group plans and third-party administrators (TPAs))- Mississippi Physicians Care Network (MPCN) [If MPCN is present on a Member/Subscriber ID, all UMMC facilities and providers are in-network regardless of TPA.]
- First Choice Health Plan
- Claritev (formerly Multiplan)
- Zelis
Government Programs- Humana Military Plan: Tricare
- United Healthcare Plan: Veterans Affairs Community Care Networks
Plans and Payors UMMC is not in-network with as of April 1, 2026- Oscar Health Plan: ACA Marketplace [Final negotiations taking place now. Anticipate in-network participation, effective June 1, 2026.]
- Cigna (Connect EPO) Plan: ACA Marketplace
- American Health Advantage Plan: Medicare Advantage
- Patrius Health (BCBSMS) Plan: Medicare Advantage
- Aetna Plan: Medicare Advantage
- Mississippi Physicians Care Network (MPCN) [If MPCN is present on a Member/Subscriber ID, all UMMC facilities and providers are in-network regardless of TPA.]
- First Choice Health Plan
- Claritev (formerly Multiplan)
- Zelis
Government Programs- Humana Military Plan: Tricare
- United Healthcare Plan: Veterans Affairs Community Care Networks
Plans and Payors UMMC is not in-network with as of April 1, 2026- Oscar Health Plan: ACA Marketplace [Final negotiations taking place now. Anticipate in-network participation, effective June 1, 2026.]
- Cigna (Connect EPO) Plan: ACA Marketplace
- American Health Advantage Plan: Medicare Advantage
- Patrius Health (BCBSMS) Plan: Medicare Advantage
- Aetna Plan: Medicare Advantage
- Oscar Health Plan: ACA Marketplace [Final negotiations taking place now. Anticipate in-network participation, effective June 1, 2026.]
- Cigna (Connect EPO) Plan: ACA Marketplace
- American Health Advantage Plan: Medicare Advantage
- Patrius Health (BCBSMS) Plan: Medicare Advantage
- Aetna Plan: Medicare Advantage
Education
| Board Certification: | Internal Medicine, Cardiovascular Disease |
| Fellowship: | Duke University Medical Center |
| Medical Education: | Harvard Medical School |
| Residency: | Brigham and Womens Hospital |
Experience
Current Positions
| Professor, School of Population Health, Department of Medicine, University Of Mississippi Medical Center, Jackson 39216 | 07/2024 - Present |
Specialty Certification Licensure
| Licensure, Mississippi Medical License | 02/2024 - Present |
| Re-certification | 10/1995 - 10/2025 |
| Certification, Diplomate, NBME | 07/1988 - Present |
| Certification, Endovascular Medicine, ABVM | 07/2006 - Present |
| Certification, Vascular Medicine, ABVM | 07/2006 - Present |
| Re-certification, Interventional Cardiovascular, ABIM | 07/2011 - 07/2021 |
| Certification, Interventional Cardiovascular, ABIM | 07/2000 - 07/2011 |
| Re-certification, Internal Medicine, ABIM | 07/2011 - 07/2021 |
| Re-certification, Internal Medicine, ABIM | 07/2002 - 07/2012 |
| Certification, Internal Medicine, ABIM | 07/1992 - 07/2002 |
Honors, Awards, and Recognition
| Gold Research Excellence Award, UMMC | 2022 |
| Silver Research Award, UMMC | 2021 |
| Bronze Research Award, UMMC | 2020 |
| Frank Hildner Elite Reviewer Award, Society of Cardiovascular Angiography and Intervention | 2017 |
| Naomi Fineberg Distiguished New Researcher Award, Department of Biostatistics, University of Alabama at Birmingham | 2015 |
| Fellow Society of Cardiovascular Angiography and Intervention (FSCAI), Society of Cardiovascular Angiography and Intervention | 2008 |
| Fellow Society of Vascular Medicine and Biology (FSVMB), Society for Vascular Medicine | 2006 |
| Fellow American College of Cardiology (FACC), American College of Cardiology | 2000 |
| Henry Christain Award for Clinical Research, American Federation for Clinical Research | 1993 |
| Young Trainee Investigator Award, American Federation for Clinical Research | 1993 |
| Truman Scholar, Harry S. Truman Memorial Foundation | 1981 |
| Townsend Prize, Yale University | 1980 |