Molina Healthcare Inc Group Market Analysis: Market Share and Coverage by State

Payer Overview

Molina Healthcare Inc Group is the #9 largest US A&H payer by reported premium, writing $30.3B in the US market with a US market share of 2.11% across 20 states. The company serves an estimated 4.54M members and operates through 20 affiliated subsidiaries, positioning it as a meaningful regional player with selective national reach.

Molina Healthcare Inc Group also maintains a modest US territory presence of $3.27M across 1 territory (Puerto Rico), which sits separately from its US premium footprint. This geography-focused footprint concentrates exposure in a set of states where Molina holds elevated market positions while keeping limited non-US exposure.

Premium by Scope

Molina Healthcare Inc Group's premium is overwhelmingly concentrated in the US States & DC scope, accounting for essentially the entire reported premium. The US Territories exposure is immaterial at $3.27M, representing a vanishingly small share of the group's total premium. For providers, this means contracting and network strategy should focus on the mainland US market where Molina's commercial and Medicaid relationships are concentrated.

National Market Footprint

Molina Healthcare Inc Group shows concentrated premium exposure in a limited set of states. The largest premiums are in WA ($4.53B), TX ($4.89B), and OH ($3.16B), while estimated membership is similarly concentrated with large pools in WA (767K), TX (669K), and OH (430K). This concentration implies that national provider negotiations with Molina will be most impactful in those high-volume states and that network leverage will vary materially by state.

From a contracting perspective, providers should prioritize relationship and rate negotiations in Washington, Texas, and Ohio where Molina's premium and membership footprints are largest. In lower-premium states such as Massachusetts ($4.95M) and New Mexico ($198M), Molina's influence on regional rate benchmarks will be limited.

The Affordable Care Act (ACA) established federally-facilitated health insurance marketplaces ("exchanges") where individuals and small businesses can shop for and enroll in health plans, often with income-based subsidies. Issuers that participate in these marketplaces are required to report enrollment, claims, and denial data to CMS (Centers for Medicare & Medicaid Services) each year.

The sections below cover this payer's ACA marketplace-specific footprint — enrollment, plan portfolio, and claims/denial-rate data. This is a narrower, separate population from the NAIC-based commercial data shown earlier on this page (total premium, market share, and membership across all lines of business): ACA marketplace enrollment is typically a small fraction of a payer's total commercial book, and the two datasets should not be treated as equivalent. CMS claims-transparency reporting has also been inconsistent industry-wide since 2020 — many issuers have little or no data for 2021 onward, so a single reporting year is common and does not necessarily indicate anything about the payer's current ACA presence.

Estimated Member Demographics

Molina Healthcare covers an estimated 4,328,082 members nationally, based on Census and NAIC market share data. The table below breaks down the estimated membership by age band:

The largest age bands are 6 to 18 (682,848 members), 35 to 44 (625,964), 55 to 64 (603,802), and 45 to 54 (593,779). This distribution highlights Molina's strong presence among families, working-age adults, and a significant senior segment.

This demographic mix suggests that Molina's covered population will generate demand for a wide range of healthcare services, from pediatric and adolescent care to chronic disease management and geriatric services. Providers should be prepared for a balanced mix of preventive, acute, and chronic care needs across the age spectrum.