Payer Overview

LUMERIS GRP HOLDINGS CORP GRP is the #92 largest US A&H payer by premium, writing $956.53M in the US market with a US market share of 0.07% across 6 states. The organization reports an estimated 150.3K members and operates through 4 affiliated subsidiaries, reflecting a focused, regional commercial footprint rather than a nationwide retail presence.

The payer's premium is concentrated in a handful of states, with its largest exposure centered in the Midwest. That concentration shapes negotiating leverage with provider systems, particularly in states where the payer ranks among the top 20 by premium. LUMERIS GRP HOLDINGS CORP GRP does not report premium in US territories or foreign markets, so its commercial relationships and network strategies are centered on the US states where it underwrites business.

Premium by Scope

LUMERIS GRP HOLDINGS CORP GRP's premium is exclusively reported in US states and DC, accounting for 100.00% of its consolidated premium. There is no reported premium in US territories or foreign markets, so the company's underwriting and provider relationships are confined to the continental US states where it operates.

For providers evaluating this payer, the concentration in the US states implies negotiations and network design should be focused on those specific state markets rather than on territory or international strategies. Payers with exclusively domestic exposure typically prioritize state regulatory alignment and localized network adequacy.

LUMERIS GRP HOLDINGS CORP GRP's national premium is heavily concentrated in the Midwest, with $748.0M of premium written in Missouri alone and a total US premium of $956.53M. The estimated membership of 150.3K is similarly concentrated, with roughly 120.54K members in Missouri, indicating a single-state concentration that drives much of the payer's negotiating leverage and network design.

This concentration means provider contracting nationally will be most impactful in a small number of states. Systems and multi-state provider groups should prioritize engagement in Missouri and Illinois, where scale is meaningful, rather than spreading resources evenly across all six states where the payer writes business.

State-by-State Market Position

LUMERIS GRP HOLDINGS CORP GRP shows its strongest presence in the Midwest, led by Missouri where it records its top market share and the largest premium. Illinois is its next-most significant market by premium and membership, while Kentucky, Arkansas, Indiana, and Ohio represent very small footholds. The geographic profile favors Midwest-focused provider groups and suggests limited strategic value for extensive contracting efforts in the Northeast, West, or Southeast.

For multi-state provider groups, the distribution implies concentrating contracting and performance initiatives in Missouri and Illinois will capture the majority of the payer relationship value. The smaller positions in Kentucky, Arkansas, Indiana, and Ohio are likely best managed through targeted, low-friction agreements that maintain access without extensive resource commitment.

Estimated Member Demographics

Nationally, the largest age bands are 6–18 (23,996 members), 35–44 (21,594 members), and 55–64 (21,578 members), indicating a strong presence among school-age children, middle-aged adults, and pre-retirement populations. The smallest segments are the youngest (Under 6) and oldest (75+), with 9,290 and 8,487 members respectively.

Missouri dominates the member distribution across all age bands, reflecting the payer's concentration in that state. Illinois is the second largest, with moderate representation in each age band. Kentucky, Ohio, Indiana, and Arkansas have much smaller member counts, with no state showing a notably older or younger skew compared to the national profile. The age distribution is relatively consistent across states, with Missouri's larger numbers amplifying the overall demographic pattern.

Estimated Members by State

LUMERIS GRP HOLDINGS CORP GRP's estimated member distribution is highly concentrated in Missouri, which accounts for 120,543 members out of the national total of 150,291. Illinois follows with 27,084 members, while Kentucky, Ohio, Indiana, and Arkansas each have fewer than 2,000 members. This geographic concentration aligns closely with the payer's market share and premium volume, as Missouri is also the state with the highest market share and premium written.

The alignment between member counts and market share rank is strong: Missouri is the clear leader in both metrics, followed by Illinois. The remaining states have minimal presence, reflecting the payer's limited footprint outside its core markets. For providers, this means that contracting and care delivery strategies should be heavily focused on Missouri, with Illinois as a secondary market. Multi-state providers will find the payer's impact negligible in other states, but significant in Missouri, where member volume drives demand for services.