Oscar Health Inc Grp Market Analysis: Market Share and Coverage by State

Payer Overview

Oscar Health Inc Grp is a nationally recognized health insurer focused on retail individual and small-group markets, operating as the #22 largest US A&H payer by premium. The company reports $8.78B in US premium and holds a 0.61% US market share across 18 states, serving an Estimated Total Members base of 1.16M through 12 affiliated subsidiaries.

Oscar Health Inc Grp does not hold a #1 position in any individual state. The insurer’s footprint is concentrated in a subset of states, with premium and membership clustered in key Southeast and Sun Belt markets, which shapes its negotiating leverage with regional provider systems and national multi-state groups.

Premium by Scope

Oscar Health Inc Grp's premium is exclusively reported in the US States & DC scope, representing the entire disclosed premium footprint. This concentration implies provider negotiations and network strategies should focus on US state-level contracting dynamics rather than territorial or foreign exposure. For provider groups evaluating Oscar Health Inc Grp, the lack of territory or foreign premium simplifies market access planning and suggests resources should be allocated to state teams in the primary footprint.

Oscar Health Inc Grp shows heavy concentration in Florida and Georgia, with $4.84B and $1.85B in premium respectively, together accounting for the majority of the carrier's reported premium. The national footprint spans 18 states, but premium outside the top two states is dispersed in much smaller pools (most under $200M), which limits broad negotiating leverage with large national health systems. For provider contracting, this means Oscar Health Inc Grp will likely have the most influence in state markets where it carries >$1B in premium, while multi-state provider groups should prioritize localized contracting strategies in smaller states where Oscar’s share and premium are modest.

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

OSCAR HEALTH INC GRP is estimated to cover 1,162,084 members nationally based on Census × NAIC share calculations. The age distribution is as follows:

The largest age bands are 55-64 (174,182 members), 45-54 (169,916 members), and 35-44 (167,930 members), indicating a strong adult presence. The pediatric population (under 18) is also substantial, with over 237,000 members.

This age profile suggests that OSCAR HEALTH INC GRP's insured population will drive demand for both adult chronic care and pediatric services. Providers should expect a balanced mix of preventive, acute, and chronic care needs, with a moderate senior segment requiring age-related care management.