Medicare Advantage insurer · Part of Contra Costa Health Services · 2026
Contra Costa Health Care Plus (HMO D-SNP)
According to the Centers for Medicare & Medicaid Services (CMS) 2026 plan-year files, Contra Costa Health Care Plus (HMO D-SNP) markets 1 Medicare Advantage plans across 1 state; average CMS star rating not published.
- 1
- Plans offered
- N/R
- Avg CMS rating
- 1
- States covered
- 0
- 5-star plans
The short answer
Contra Costa Health Care Plus (HMO D-SNP) offers 1 Medicare Advantage plan across 1 state, averaging an unrated★ on the CMS quality scale.
- 1
- plans offered
- 0
- plans at 5 stars
- 1
- counties served
- 1
- CMS contracts
Star ratings are set yearly by CMS. Plan availability varies by county, open a plan to see where it is sold.
Narrower MA inventory book
Contra Costa Health Care Plus (HMO D-SNP) in the narrower-inventory third
Contra Costa Health Care Plus (HMO D-SNP) ranks #259 of 288 by plan count (1 MA plans) - bottom-third inventory; county availability matters more than brand scale. Contra Costa Health Care Plus (HMO D-SNP) markets 1 Medicare Advantage plan across 1 state and 1 counties - a bottom-third inventory book (#259 of 288); county listings beat brand scale here. Inside the Contra Costa Health Services 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, Contra Costa Health Care Plus (HMO D-SNP) ranks #259 of 288 Medicare Advantage insurers by plan count. Figures are CMS public-use data, informational only, not counseling.
UNRATED · ONE-STATE · CONTRACT-THIN · HMO-BOOK · plans #259/288
States Covered
Plans Offered by Contra Costa Health Care Plus (HMO D-SNP)
| Plan Name | Type | State | Stars | Action |
|---|---|---|---|---|
| CONTRA COSTA COUNTY MEDICAL SERVICE DBA CONTRA COS | HMO | CA | N/R | View details → |
Read our methodology - how this data is sourced, computed, and verified.
Read with Contra Costa Health Care Plus (HMO D-SNP)
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 UNRATED · ONE-STATE · CONTRACT-THIN · HMO-BOOK.
ABS(plans_count) peer at 1 MA plans (Δ 0 wider vs Contra Costa Health Care Plus (HMO D-SNP)); PRE-BONUS · ONE-STATE vs this page's UNRATED · ONE-STATE · CONTRACT-THIN.
ABS(plans_count) peer at 1 MA plans (Δ 0 wider vs Contra Costa Health Care Plus (HMO D-SNP)); PRE-BONUS · ONE-STATE vs this page's UNRATED · ONE-STATE · CONTRACT-THIN.
ABS(plans_count) peer at 1 MA plans (Δ 0 wider vs Contra Costa Health Care Plus (HMO D-SNP)); UNRATED · ONE-STATE vs this page's UNRATED · ONE-STATE · CONTRACT-THIN.
ABS(plans_count) peer at 1 MA plans (Δ 0 wider vs Contra Costa Health Care Plus (HMO D-SNP)); UNRATED · ONE-STATE vs this page's UNRATED · ONE-STATE · CONTRACT-THIN.
Contra Costa Health Care Plus (HMO D-SNP) stamps UNRATED · ONE-STATE · CONTRACT-THIN; county availability beats brand when HMO-BOOK options diverge.
Using Contra Costa Health Care Plus (HMO D-SNP)'s plan lineup
Star rating and plan availability, not the insurer's size alone.
- Contra Costa Health Care Plus (HMO D-SNP) offers 1 plans across 1 county - check which are actually sold where you live. Browse by county
- 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.