Medicare Advantage insurer · Part of CoxHealth · 2026

Cox HealthPlans

According to the Centers for Medicare & Medicaid Services (CMS) 2026 plan-year files, Cox HealthPlans markets 3 Medicare Advantage plans across 1 state; average CMS star rating 4.0★.

3
Plans offered
4.0★
Avg: Above average
1
States covered
0
5-star plans

The short answer

Cox HealthPlans ranks #155 of 288 Medicare Advantage insurers by plan inventory (3 plans) but #89 by average CMS star (4.00★).

#155
inventory rank
3
plans offered
#89
avg star rank
4.00★
mean CMS rating

CMS assigns star ratings at the contract level; inventory breadth and average quality move on different axes.

Focused state footprint

What the CMS data shows about Cox HealthPlans

Cox HealthPlans markets MA plans in 1 state · inventory rank #155/288 · star rank #89/212. Cox HealthPlans markets 3 Medicare Advantage plans across 1 state and 17 counties in the 2026 contract year. Inside the CoxHealth family. Product mix HMO; 0 plans at 5 stars. Enrollment is not disclosed in the public file for this plan year. According to PlainMedicare's CMS plan-year corpus ranking, Cox HealthPlans ranks #155 of 288 Medicare Advantage insurers by plan count and #89 of 212 by average CMS star rating. Figures are CMS public-use data, informational only, not counseling.

BONUS-TIER · ONE-STATE · CONTRACT-MID · HMO-BOOK · plans #155/288 · stars #89/212

States Covered

MO

Where Cox HealthPlans sits on CMS quality

Average CMS star rating across the insurer's own Medicare Advantage plans, against every rated insurer in the CMS file

4★ Top 30% higher than 70% of 212 Medicare Advantage insurers

2.25★–2.5★: 1 Medicare Advantage insurers (0%). Below this entry. 2.5★–2.75★: 7 Medicare Advantage insurers (3%). Below this entry. 2.75★–3★: 3 Medicare Advantage insurers (1%). Below this entry. 3★–3.25★: 37 Medicare Advantage insurers (17%). Below this entry. 3.25★–3.5★: 7 Medicare Advantage insurers (3%). Below this entry. 3.5★–3.75★: 50 Medicare Advantage insurers (24%). Below this entry. 3.75★–4★: 9 Medicare Advantage insurers (4%). Below this entry. 4★–4.25★: 44 Medicare Advantage insurers (21%). This entry sits in this band. 4.25★–4.5★: 8 Medicare Advantage insurers (4%). Above this entry. 4.5★–4.75★: 36 Medicare Advantage insurers (17%). Above this entry. 4.75★–5★: 1 Medicare Advantage insurers (0%). Above this entry. 5★–5.25★: 9 Medicare Advantage insurers (4%). Above this entry. This insurer 2.25★ 5.25★ every rated insurer, bucketed by value

Each bar is a band; taller bars hold more Medicare Advantage insurers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Advantage Star Ratings 2026 · 2026-09-01

Plans Offered by Cox HealthPlans

Plan Name Type State Stars Action
COX HEALTH SYSTEMS HMO INC HMO MO 4.0 View details →
COX HEALTH SYSTEMS HMO INC HMO MO 4.0 View details →
COX HEALTH SYSTEMS HMO INC HMO MO 4.0 View details →
Note: PlainMedicare provides CMS data for informational purposes only. This is not medical or insurance advice. Contact the insurer directly or visit Medicare.gov to confirm plan availability and current benefits in your county.

Read our methodology - how this data is sourced, computed, and verified.

Read with Cox HealthPlans

ABS(plans_count) peers first, then an ABS(avg_star) quality pole and a stamp-branched guide, not a fixed Related strip. This page stamps BONUS-TIER · ONE-STATE · CONTRACT-MID · HMO-BOOK.

AgeRight Advantage · CONTRACT-MID

ABS(plans_count) peer at 3 MA plans (Δ 0 wider vs Cox HealthPlans); UNRATED · REGIONAL vs this page's BONUS-TIER · ONE-STATE · CONTRACT-MID.
AmeriHealth · CONTRACT-MID

ABS(plans_count) peer at 3 MA plans (Δ 0 wider vs Cox HealthPlans); BELOW-PAR · ONE-STATE vs this page's BONUS-TIER · ONE-STATE · CONTRACT-MID.
AmeriHealth Caritas VIP Care (HMO-D-SNP) · CONTRACT-MID

ABS(plans_count) peer at 3 MA plans (Δ 0 wider vs Cox HealthPlans); UNRATED · REGIONAL vs this page's BONUS-TIER · ONE-STATE · CONTRACT-MID.
Anthem Blue Cross Life and Health Insur… · CONTRACT-MID

ABS(plans_count) peer at 3 MA plans (Δ 0 wider vs Cox HealthPlans); BELOW-PAR · ONE-STATE vs this page's BONUS-TIER · ONE-STATE · CONTRACT-MID.
Quartz Medicare Advantage (HMO) (quality pole)

ABS(avg_star) pole at 4.0★ (Δ 0.0 vs Cox HealthPlans's BONUS-TIER): CONTRACT-WIDE · REGIONAL.
Plan pick checklist · BONUS-TIER

Cox HealthPlans stamps BONUS-TIER · CONTRACT-MID; bonus-tier contracts still vary by county formulary and provider lock-in.
Data sourced from the Centers for Medicare & Medicaid Services (CMS). See our methodology for details. Retrieved and formatted by PlainMedicare

Using Cox HealthPlans's plan lineup

Star rating and plan availability, not the insurer's size alone.

  • Cox HealthPlans ranks 89 of 212 insurers by average CMS star rating (4.0★ average) - compare against the plans available in your own county. How star ratings work
  • Weigh total cost, not just premium: compare plan details using Medicare.gov before you enroll. Medicare Plan Compare
  • Check that your doctors and drugs are in-network before you enroll, and confirm the plan on Medicare.gov. Choosing a plan

Insurer-level averages combine every plan the organization files with CMS; the plan sold in your county may differ.

PlainMedicare is rendered directly from CMS Medicare Advantage and Part D public files, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a correction. Data current as of 2026-09-01.