What MACIPA does

MACIPA, formally Mount Auburn Cambridge Independent Practice Association, Inc., is a Massachusetts physician membership organization founded in 1985 and headquartered at 1380 Soldiers Field Road in Brighton, MA. It aggregates more than 500 primary care physicians, specialists, and other providers into a single contracting and quality-improvement entity serving approximately 250,000 patients across ten eastern Massachusetts communities, including Cambridge, Belmont, Watertown, Waltham, Lexington, Arlington, Somerville, Allston/Brighton, Newton, and Medford. MACIPA operates a Provider Directory that connects patients to member physicians by specialty, location, gender, and clinical interest, and runs programs in quality improvement, care management, population health management, health information exchange, and pharmacy. The organization was the first physician group in Massachusetts to be voluntarily certified as an Accountable Care Organization by the MA Health Policy Commission and the first selected for the Alternative Quality Contract (AQC).

The underlying technology platform is not explicitly disclosed in public materials; there is no app, no API, no proprietary product surface, and no AI/ML capability referenced. EMR-based integration is mentioned only in the context of a 2018 HPHC Quality Grant supporting advance care planning workflows. Clinical services were recently transferred to a separate non-profit entity, the Mount Auburn Community Fund Empowering Patient Care (MAC Fund), a 501(c)(3) that delivers Social Work Care Management, Nurse Practitioner Care at Home, Nurse Care Management, and an embedded Pharmacist Support Program. The administrative IPA itself is staffed by a small team of 11-50 employees, and the operating geography remains regional to greater Boston.

MACIPA's business model is a managed-services / value-based care contracting model. The IPA participates in alternative quality contracts and value-based arrangements with payers, led by Harvard Pilgrim Health Care, and earns revenue through managing healthcare quality and cost outcomes for attributed patient populations. Physicians are members rather than customers in the traditional sense, joining the organization to access group contracting, quality programs, care management infrastructure, and representation. The model is anchored on quality performance measured against HEDIS and NCQA standards, with MACIPA exceeding the national 90th percentile in 2025 and earning repeated HPHC Honor Roll recognition from 2017 onward. No pricing is publicly disclosed, consistent with the contract-negotiated nature of payer arrangements, and the IPA is member-governed through a physician Board of Directors with no disclosed private equity, venture, or corporate parent ownership.

Name

MACIPA

Legal name

Mount Auburn Cambridge Independent Practice Association, Inc.

Website

https://macipa.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Founded in 1985, MACIPA is a Massachusetts physician membership organization with 500+ member physicians serving approximately 250,000 patients across eastern Massachusetts. It operates value-based care contracts, quality improvement, care management, and population health programs through affiliations with Mount Auburn Hospital and Beth Israel Lahey Health.

Ownership category

akta.pro rank

Product category

Independent Practice Association (Physician Network Management)

SIC

Services-Membership Organizations (8600)

akta.pro primary industry

Independent Primary Care Practices (HLAFAGAA)

Keywords

• Physician network management
• Value-based care
• Population health management
• Care management services
• Quality improvement programs

Headquarters

HQ city

Brighton

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Value-based care contracts: MACIPA participates in Alternative Quality Contract (AQC) and other value-based care arrangements with payers such as Harvard Pilgrim Health Care. Revenue is derived from managing healthcare quality and costs for attributed patient populations.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

MACIPA (Mount Auburn Cambridge Independent Practice Association, Inc.) is a physician and provider membership organization that organizes more than 500 primary care physicians, specialists, and other providers across eastern Massachusetts to deliver value-based care, run quality improvement and population health programs, and participate in payer contracts such as the Alternative Quality Contract (AQC). It serves approximately 250,000 patients through member practices and operates an online Provider Directory connecting patients to in-network physicians.

Product overview

MACIPA is a physician and other providers membership organization established in 1985, offering a platform of healthcare services including a provider network of over 500 physicians serving approximately 250,000 patients. The core offering consists of a Provider Directory for patient access, quality improvement programs, care management, population health management, and pharmacy services. Through its subsidiary MAC Fund (Mount Auburn Community Fund Empowering Patient Care), MACIPA delivers clinical support programs including Social Work Care Management, Nurse Practitioner Care at Home, Nurse Care Management, and Pharmacist Support Program. MACIPA operates under a medical home model with practices across Cambridge, Belmont, Watertown, Waltham, Lexington, Arlington, Somerville, Allston/Brighton, Newton, and Medford.

Differentiator

Problem solved

Functional benefit

Named customers3 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Six partnerships are on record, tiered core and minor.

• Harvard Pilgrim Health CarecoreStrategic or Co-development PartnerHarvard Pilgrim Health Care is a key healthcare payer partner. MACIPA participates in their Alternative Quality Contract (AQC) and has received multiple grants including Quality Grants and Population Management Grants. MACIPA has been named to HPHC Honor Roll for multiple years (2017-2019, 2025 with distinction). HPHC includes MACIPA in their Provider Directory for members.
• MA Department of Public HealthminorStrategic or Co-development PartnerPartnered on wellness initiatives through seed-funding program with Health Resources in Action and Advancing Wellness, funded by the Prevention and Wellness Trust for Massachusetts businesses.
• Health Resources in ActionminorStrategic or Co-development PartnerCollaborated on wellness program development as part of the Prevention and Wellness Trust funded worksite wellness initiative.
• Advancing WellnessminorStrategic or Co-development PartnerCollaborated on wellness program development as part of the Prevention and Wellness Trust funded worksite wellness initiative.
• Mount Auburn HospitalcoreStrategic or Co-development PartnerMount Auburn Hospital is the affiliated hospital for MACIPA physicians. MACIPA was instrumental in the opening of a new BILH Care Center in Watertown. Dr. Barbara Spivak, MACIPA President, is a Clinical Instructor at Harvard Medical School.
• Beth Israel Lahey HealthcoreStrategic or Co-development PartnerMany MACIPA member practices are affiliated with Beth Israel Lahey Health, including BILH Primary Care practices across multiple locations (Belmont Medical Associates, Trapelo Road, Watertown, Reservoir Medical Associates).

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Emerging players

• Reliant Medical Group: Multi-specialty physician group in central Massachusetts with value-based contract experience, now part of Optum. Comparable as a physician organization model that has scaled and been acquired, illustrating both the strategic path and competitive pressure on MACIPA.

Direct peers

• Atrius Health: Large Massachusetts-based independent physician group and ACO with multi-specialty practices across eastern MA. Directly comparable as a similarly structured IPA/ACO serving the same metro geography and participating in value-based contracts.
• Beth Israel Deaconess Care Organization (BIDCO): Beth Israel Lahey Health–affiliated physician network and ACO with risk-bearing contracts across eastern Massachusetts. Direct peer as another MA-based IPA/ACO with overlapping BILH membership practices and similar quality-improvement mission.
• New England Quality Care Alliance (NEQCA): Tufts Medicine-affiliated IPA and ACO with a multi-specialty physician network across eastern and central Massachusetts. Closely comparable as an ACO-style IPA executing value-based contracts and population health programs in the same Massachusetts market.

Regional players

• Cambridge Health Alliance: Massachusetts public safety-net health system serving Cambridge and surrounding communities with its own employed physician network and ACO activity. Comparable as a regional provider/competitor for patients and primary care physicians in MACIPA's core geography.

Others

• Mount Auburn Hospital: Core affiliated hospital for MACIPA member physicians and partner in care delivery. Comparable as the primary inpatient anchor in MACIPA's referral ecosystem and shared value-based programs.
• Harvard Pilgrim Health Care (Point32Health): MACIPA's primary value-based contract counterparty (AQC) and source of grants and quality recognition. Comparable as the payer that defines MACIPA's revenue model and quality benchmarks, now part of Point32Health.

Broad incumbents

• Mass General Brigham (formerly Partners HealthCare): Largest Massachusetts academic health system with its own PHO and ACO contracting. Functions as a broad incumbent whose employed-physician strategy and ACO capabilities compete for the same primary care practices and value-based contracts in greater Boston.
• Tufts Medicine: Massachusetts integrated health system anchored by Tufts Medical Center and parent of NEQCA. Comparable as a broader incumbent providing the system umbrella under which an MA IPA competes for physician membership and risk contracts.
• Beth Israel Lahey Health: Large Massachusetts health system operating BIDCO and employing many MACIPA-affiliated primary care physicians. Acts as both a partner (referral channel) and broad incumbent competing for physician alignment across the same communities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/MACIPA_1380
• LinkedInlinkedin.com/company/655131

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about MACIPA