Oscar Health is a technology-focused insurer built around the ACA individual market. It had about 2.7 million members at the end of September 2026, up about 27% from a year earlier, and expects $19.0 billion to $19.3 billion in revenue for 2026 company guidance.
Larger insurers are retreating from the Marketplace. Oscar is growing. It is adding 140 counties for 2027, including its first entry into South Carolina, and is betting on employer-funded individual coverage through ICHRAs.
Updated November 2026. This profile draws on company filings, federal data and Health Plan News analysis. It is independent of Oscar; for questions about your coverage, call the number on your member ID card.
Oscar at a Glance
| Item | Details |
|---|---|
| Company | Oscar Health, Inc. (NYSE: OSCR) |
| Headquarters | New York, New York |
| CEO | Mark Bertolini (since April 2023) |
| Founded | 2012, by Mario Schlosser and Joshua Kushner |
| 2025 revenue | $11.7 billion |
| Members | About 2.7 million (September 30, 2026) |
| ACA Marketplace | Adding 140 counties and South Carolina for 2027 |
| Medicare Advantage | None |
| Medicaid | None |
ACA Marketplace Growth
Oscar’s share of the Marketplace within the areas it serves rose from 17% in 2025 to 30% in 2026, the company said, as its membership grew and the overall market shrank (source). It is second on the exchange in Georgia and Iowa in the AMA’s 2024 data, and it plans to add 400 to 600 more counties by 2029.
ICHRA Strategy
Oscar sells plans for ICHRAs, or individual coverage health reimbursement arrangements, under the CHOICE brand, letting employers fund workers’ individual plans instead of offering group coverage. It expects that market to exceed 2.5 million people by 2029 (source). Our ICHRA guide explains how they work.
Oscar by the Numbers: Health Plan News Data
- Aca exchange market: largest insurer in 0 states and second-largest in 2, based on 2024 AMA data.
- Claim denials: its HealthCare.gov plans denied 24.9% of in-network claims in 2024 across 11 states, compared with 18.7% for all HealthCare.gov insurers (federal Transparency in Coverage data compiled by KFF).
Compare insurers in every state on our health insurance market share by state page and our claim denial rates by insurer report.
Recent Oscar News
- Turnaround: Oscar lost $443 million in 2025, then earned $167 million in the third quarter of 2026 and raised its full-year guidance for the third time. (source)
- 2027 products: New 2027 plans include coverage for early retirees moving to Medicare, menopause care and concierge care. (source)
How To Contact Oscar
| Purpose | Contact |
|---|---|
| Member services (Care Team) | (855) 672-2755, Monday to Friday, 8 a.m. to 8 p.m. |
| Enrollment | (855) 951-1159 |
| Website | hioscar.com |
For profiles of other carriers, see our List of Health Insurance Companies and follow our Health Insurance Companies hub.
Sources
Becker’s Payer Issues; Fierce Healthcare; Fierce Healthcare; Oscar FY2025 release; Fierce Healthcare; Quartr Investor Day summary; KFF; Oscar; Oscar 10-Q Q3 2026; Oscar 10-Q; Becker’s; Oscar 10-Q; Fierce Healthcare; Oscar Care Team page; American Medical Association, Competition in Health Insurance (2025 update); KFF, Medicare Advantage in 2026; CMS Transparency in Coverage public use file (2024, via KFF).