CAMBRIDGE, Mass. — Arches Massachusetts IPA and Valley Medical Group P.C. announced a strategic partnership aimed at strengthening independent primary care and expanding physician-led participation in value-based care across Massachusetts.
The partnership is designed to support private medical practices while enhancing their ability to participate in commercial and Medicare risk-based contracts. Valley Medical clinicians, including physicians, nurse practitioners, physician assistants, behavioral health clinicians, and physical therapists, will retain full ownership and clinical autonomy while gaining access to Arches’ value-based contracting platform, performance analytics, care-management infrastructure, and operational support.
Through the collaboration, Valley Medical providers will be able to participate directly in risk-based contracts that are often difficult for independent practices to access without larger system backing. Arches said the model is intended to reinvigorate private practice while maintaining strong clinical affiliations with hospitals.
Arches operates as a fully physician-owned and physician-led accountable care organization model in Massachusetts, spanning both commercial and government programs. The organization was created to address challenges it says are common in hospital-owned ACOs, including limited transparency, misaligned incentives, and reduced physician governance. Its approach centers on aligning financial incentives with physician-led clinical decision-making to improve care quality and reduce costs.
The partnership emphasizes three primary goals: sustaining independent primary care practices, improving patient access through reinvestment in primary care infrastructure, and reducing total medical expense by lowering avoidable high-cost services.
Under the Arches alignment model, participating clinicians may receive shared savings, performance-based distributions tied to quality and cost outcomes, and optional equity participation for early participating practices.
The announcement follows several recent milestones for Arches, including Valley Medical becoming its first anchor practice and approval to participate in the Medicare Shared Savings Program beginning January 1, 2026. The organization said these developments position it for physician-led growth across the state.
“For the last twenty years in Massachusetts, PCPs and their patients have struggled inside hospital controlled settings. Access has declined and services have become increasingly unaffordable. This needs fixing, now,” said Dr. Chris Kryder, CEO of Arches Massachusetts IPA. “Valley Medical brings the ideal combination of community commitment and high-quality practice, and we’re proud to partner with a group that shares our mission of strengthening physician and provider-led care across Massachusetts.”
“Our Physicians, Nurse Practitioners and Physician Assistants have always valued independence, but we also recognize the importance of having the right infrastructure to succeed in value-based care,” said Dr. Paul Carlan, President of Valley Medical Group. “Arches gives us the best of both worlds — modern value-based capabilities paired with a governance model that ensures providers remain at the center of decision-making. This partnership positions us well for the future.”
The partnership comes as primary care practices across Massachusetts face rising insurance premiums, workforce challenges, and increased consolidation. Provider-led models such as Arches are increasingly viewed as an alternative approach to controlling costs while improving access and reinvesting resources directly into primary care.
