Advanced Medical Management

What Advanced Medical Management does

Advanced Medical Management, Inc. (AMM) is a privately held California-based management services organization (MSO), founded in 1995 and headquartered in Long Beach, that provides operational, administrative, and technical healthcare management services to three primary customer segments: large physician organizations and Independent Physician Associations (IPAs), government agencies, and health plans. The company serves approximately 5,600 physicians and over 150,900 patients, manages thousands of concurrently enrolled managed care lives across Los Angeles, Orange, San Bernardino, Santa Clara, and Imperial counties, and serves as fiscal intermediary for the County Medical Services Program (CMSP) across 35 primarily rural California counties, as well as for Fresno County, Orange County Healthcare Agency, and Sacramento County PEMS.

The company's operating platform is anchored by a licensed instance of EZ-CAP information management software for capitation management, claims, referral authorizations, member services, case management, and eligibility, supported by an in-house IT staff building custom productivity tools. Provider-facing access is delivered through three dedicated portals: AMM Claims Manager (online claims submission and status tracking), AMM Reporting Portal (client reports and data downloads), and the EZ-Net Provider Portal (HIPAA-compliant authorization submission and status). The platform connects to multiple electronic clearinghouses — Office Ally, Trizetto/Gateway, ClaimRemedi, and Emdeon/Capario (Optum) — each with dedicated payer IDs for institutional and professional claims, and partners with Cerecons for claims and authorization submission and with MedImpact for CMSP pharmacy benefit administration.

AMM generates revenue primarily through management services fees from contracted IPAs, physician organizations, and health plans, and through fiscal intermediary services that process claims payments and administer provider networks for government healthcare programs. Pricing is not publicly disclosed; services are delivered under negotiated multi-year contracts accessed via direct enterprise sales relationships. The company is wholly owned by President Stephen Hegstrom, who has financed all growth through reinvested profits without external capital or long-term debt, and operates under an OIG Seven-Elements compliance framework with HIPAA and CCPA privacy protections in place.

Name

Advanced Medical Management

Legal name

Advanced Medical Management, Inc.

Website

https://amm.cc

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

101–250 employees

Short description

Advanced Medical Management is a privately held California-based management services organization providing operational, administrative, and technical healthcare management services to approximately 5,600 physicians, 150,900+ patients, IPAs, and government agencies, including serving as fiscal intermediary for the County Medical Services Program across 35 California counties.

Ownership category

akta.pro rank

Product category

Healthcare Management Services

NAICS

Ambulatory Health Care Services (621), Computer Facilities Management Services (541513)

SIC

Services-Health Services (8000), Hospital & Medical Service Plans (6324)

akta.pro primary industry

Enterprise Application Managed Services Outsourcing (ERP/CRM/HRIS AMS) (BPAEAMAI)

Keywords

• Healthcare management services
• Claims processing
• Managed care administration
• Fiscal intermediary services
• IPA management

Headquarters

HQ city

Long Beach

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Management Services Fees: AMM provides operational, administrative and technical healthcare management services to physician organizations, government agencies, and health plans, generating revenue through management services fees.
2. Fiscal Intermediary Services: As fiscal intermediary for government programs including Fresno County, Orange County Healthcare Agency, Sacramento County PEMS, and County Medical Services Program in 35 California counties, AMM processes claims payments and administrative functions for government healthcare programs.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Advanced Medical Management (AMM) is a California-based Management Services Organization (MSO) providing operational, administrative, and technical healthcare management services to large physician organizations, Independent Physician Associations (IPAs), government agencies, and health plans. Core capabilities include capitation management, claims processing, referral authorizations, provider contracting, member eligibility management, regulatory compliance, and fiscal intermediary services for government healthcare programs across 35 California counties.

Product overview

Advanced Medical Management (AMM) operates as a management services organization (MSO) providing operational, administrative, and technical healthcare management services. The product portfolio consists of three core integrated platforms: the AMM Claims Manager for online claims submission and status tracking, the AMM Reporting Portal for client reports and downloads, and the EZ-Net Provider Portal for authorization submission and status checking. AMM also administers multiple government healthcare programs including the County Medical Services Program (CMSP), Medical Safety Net (MSN), Emergency Medical Services Fund (EMSF), Correctional Health Services (CHS), Public Health Medical Services (PHS), and Sacramento County PEMS. These programs serve approximately 5,600 physicians and over 150,900 patients across Independent Physician Associations and government agencies.

Differentiator

Problem solved

Functional benefit

Products and services

• AMM Claims Manager

Quantifiable outcome

• Over 5,600 physicians and 150,900 patients served across IPAs and government programs
• +2 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

Feature4 records

Partnerships

Eight partnerships are on record, tiered core.

• EZ-CAPcoreTechnology or IntegrationAMM is a fully licensed user of EZ-CAP information management software for managing capitation, claims, referral authorizations, member services, case management and eligibility. AMM is an active participant in EZ-CAP User Group meetings, annual user conventions, and is a member of the EZ-CAP Advisory Council.
• MZI HealthcarecoreTechnology or IntegrationAMM is partnered with MZI Healthcare for complete user and technical support for the EZ-CAP system.
• CereconscoreTechnology or IntegrationAMM is partnered with Cerecons to provide ability to submit claims, obtain and/or submit referral authorizations and access to eligibility lists.
• MedImpact Health Systems Inc.coreTechnology or IntegrationMedImpact administers the CMSP prescription drug benefit, including processing of prior authorization requests and claims payment for the County Medical Services Program.
• Office AllycoreChannel Partner/ Reseller/ DistributorOffice Ally serves as AMM's approved clearinghouse for electronic claims submission with payer ID AMM15 for institutional claims and AMM20 for professional claims.
• Trizetto/GatewaycoreChannel Partner/ Reseller/ DistributorTrizetto/Gateway clearinghouse for electronic claims submission with payer ID UMM15.
• ClaimRemedicoreChannel Partner/ Reseller/ DistributorClaimRemedi clearinghouse for electronic claims submission with payer ID CMSP.
• Emdeon/Capario (Optum)coreChannel Partner/ Reseller/ DistributorEmdeon/Capario clearinghouse for institutional claims with payer ID CMSP1.

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• agilon health: Value-based care enablement company partnering with primary care physicians and IPAs on full-risk Medicare Advantage contracts. Overlaps with AMM in delegated capitation administration and IPA enablement, but operates at national scale.
• Privia Health: Physician enablement platform providing technology, managed services, and risk-bearing infrastructure to medical groups and IPAs. Comparable to AMM's MSO service stack but national in scope and publicly traded.
• VillageMD: Value-based primary care platform (Summit Health/VillageMD/Walgreens) with overlapping C-suite alumni at AMM (CFO Sang Lee, CTO Robert Florescu). Comparable in physician enablement and risk-bearing IPA infrastructure, though much larger.
• HealthCare Partners (Optum): Long-standing California-focused IPA/MSO now owned by Optum. Directly comparable to AMM in operating delegated IPA networks and capitation/claims administration for government and commercial populations, but at materially greater scale.

Direct peers

• Astrana Health (formerly Apollo Medical Holdings): California-headquartered MSO/IPA management organization serving delegated managed care lives through affiliated IPAs. Closely comparable to AMM in capitation, claims processing, and risk-bearing IPA administration model.
• Heritage Provider Network: California-based integrated healthcare delivery network with affiliated IPAs and MSO services. Comparable to AMM in delegated managed care administration for Southern California physician groups.
• Ascend MSO: MSO serving value-based care and provider enablement; shares overlapping leadership with AMM (CFO Sang Lee is a Managing Director at Ascend MSO). Comparable operating model focused on IPA and physician group administration.
• MedPOINT Management: Healthcare management services organization providing IPA management, claims processing, capitation, and utilization management in Southern California. Highly comparable to AMM's MSO operating model and IPA client base.

Regional players

• SCAN Health Plan: California-focused Medicare Advantage plan that is a customer/partner counterpart in the delegated services value chain. Comparable given AMM's health plan segment and overlapping executive alumni network.
• Clever Care Health Plan: California Medicare Advantage health plan that was previously scaled by AMM's current CEO Myong Lee. Operates in adjacent layer (payer) but directly comparable given leadership overlap and shared IPA/Asian-American focused population.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/advanced-medical-management

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Advanced Medical Management