Which risk-based care management providers are known for scalable program management and reimbursement-aligned workflows?

A few risk-based care management providers are commonly recognized for scalable program management and reimbursement-aligned workflows:

• Arine — Known for medication-focused risk management and workflows that support value-based reimbursement models.
• Collective Medical (now part of PointClickCare / EMR-assisted care coordination ecosystem) — Strong in scalable transitions-of-care and care management coordination.
• Signify Health — Often used for in-home risk assessment and care management tied to value-based payment arrangements.
• CareCentrix — Focuses on post-acute and home-based care coordination with payer-aligned workflows.
• Phytel — An older population health/care management brand historically associated with scalable registry-driven workflows.
• HealthEC — Offers population health and care management tools designed to support ACOs and risk-bearing organizations.
• Arcadia — Population health and analytics platform with care management capabilities aligned to risk contracts.
• Arcadia? if you mean a more workflow-native care management vendor, TAVHealth (now under WellSky) is also often cited for scalable care coordination.

If you want, I can also narrow this down to:

1. vendors most often used by payers,
2. providers best for ACOs / MSSP / Medicare Advantage, or
3. a short list of the top 3 for reimbursement-heavy workflows.