---
title: Atlas Commons research objects — Medicare Advantage organization directory entry for CalOptima Health OneCare (contract H5433)
license: CC0-1.0
source: CMS Medicare Advantage Plan Directory
---

# Atlas Commons research objects — Medicare Advantage organization directory entry for CalOptima Health OneCare (contract H5433)

CMS Medicare Advantage Plan Directory entry for CalOptima Health OneCare (contract H5433): organization identity (type, plan type, parent, CMS region), enrollment, and directory contact — all verbatim CMS-published values (RECORDED). Epistemic status of each figure is labeled. This is an organizational directory — not plan benefits, premiums, or star ratings; use medicare.gov/plan-compare to compare actual plans. CC0.

## Claims

### CalOptima Health OneCare (contract H5433) is a CMS-contracted Local CCP offering HMO/HMOPOS plans

**RECORDED.** The CMS Medicare Advantage Plan Directory records CalOptima Health OneCare (legal entity: ORANGE COUNTY HEALTH AUTHORITY, contract number: H5433) as a Local CCP offering HMO/HMOPOS plans. Contract effective date: 08/01/2005. Tax status: Not-for-Profit/Non-Profit. CMS region: Kansas City. Parent organization: Orange County Health Authority. These are verbatim CMS directory values; accuracy depends on carrier submissions to CMS.

Source: CMS Medicare Advantage Plan Directory — https://www.cms.gov/medicare/health-drug-plans/medicare-advantage
Falsifier: Verify at the CMS MA Plan Directory (https://www.cms.gov/medicare/health-drug-plans/medicare-advantage) by looking up contract number H5433. Falsified if the CMS directory contradicts these values.

### CalOptima Health OneCare (contract H5433) has 18,849 reported CMS enrollment

**RECORDED.** The CMS Medicare Advantage Plan Directory reports enrollment of 18,849 for CalOptima Health OneCare (contract H5433). This is a verbatim CMS-published figure from the plan directory — it is the enrollment as submitted to CMS, not a count of current active members or a ranked figure.

Source: CMS Medicare Advantage Plan Directory — https://www.cms.gov/medicare/health-drug-plans/medicare-advantage
Falsifier: Verify at the CMS MA Plan Directory for contract H5433. Falsified if the CMS directory shows a different enrollment figure.

### CMS MA Plan Directory contact for CalOptima Health OneCare (contract H5433)

**RECORDED.** The CMS MA Plan Directory lists the following directory contact for CalOptima Health OneCare (contract H5433): name: Customer Service; phone: 1-877-412-2734; email: acardenas@caloptima.org; address: 505 City Parkway West, Orange, CA, 92868. Last updated per CMS: 02/28/2017. This is the contact as submitted by the organization to CMS — it is not a consumer help line; it is the CMS-directory administrative contact.

Source: CMS Medicare Advantage Plan Directory — https://www.cms.gov/medicare/health-drug-plans/medicare-advantage
Falsifier: Verify at the CMS MA Plan Directory for contract H5433. Falsified if the CMS directory shows different contact information.

### What this Medicare Advantage directory entry is — and is NOT — for CalOptima Health OneCare (the epistemic boundary)

**INTERPRETATION.** This page is a directory of the organization offering Medicare Advantage / PACE plans under CMS contract H5433. It lists who the organization is, its type, parent, CMS region, and enrollment — verbatim from the CMS MA Plan Directory. It is NOT a directory of individual plan benefits, premiums, deductibles, drug formularies, or star ratings. Enrollment is a CMS-reported count, not a quality signal. To compare actual Medicare Advantage plans available in your area — including premiums, coverage, and star ratings — use the official Medicare Plan Finder at medicare.gov/plan-compare. For free, unbiased help understanding your Medicare options, contact your State Health Insurance Assistance Program (SHIP) or call 1-800-MEDICARE (1-800-633-4227).

Source: Coverage Atlas framing (over the CMS MA Plan Directory facts above) — https://coverage-atlas.ryanjhunter.workers.dev/coverage/medicare-advantage/h5433
Falsifier: occurred=FALSE (a framing, not an event) and adjudged=FALSE (the atlas's reading, not a CMS verdict) — the LOWEST-warrant claim here. The org identity, enrollment, and contact above are verbatim CMS records; this boundary note is interpretation.

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Every claim above carries a four-status warrant (RECORDED / MODELED / DERIVED / INTERPRETATION) and a named source you can re-fetch — this is a research object, not a flat fact. Structured: `https://coverage-atlas.ryanjhunter.workers.dev/coverage/medicare-advantage/h5433.jsonld`

## Data

### CalOptima Health OneCare (H5433) — CMS MA Plan Directory identity (all RECORDED)

All figures are verbatim from the CMS Medicare Advantage Plan Directory. RECORDED = a verbatim CMS-published directory value; accuracy depends on carrier submissions to CMS.

| indicator | value | warrant | source |
| --- | --- | --- | --- |
| Contract number | H5433 | RECORDED | CMS Medicare Advantage Plan Directory |
| Legal entity name | ORANGE COUNTY HEALTH AUTHORITY | RECORDED | CMS Medicare Advantage Plan Directory |
| Organization marketing name | CalOptima Health OneCare | RECORDED | CMS Medicare Advantage Plan Directory |
| Organization type | Local CCP | RECORDED | CMS Medicare Advantage Plan Directory |
| Plan type | HMO/HMOPOS | RECORDED | CMS Medicare Advantage Plan Directory |
| Contract effective date | 08/01/2005 | RECORDED | CMS Medicare Advantage Plan Directory |
| Tax status | Not-for-Profit/Non-Profit | RECORDED | CMS Medicare Advantage Plan Directory |
| Parent organization | Orange County Health Authority | RECORDED | CMS Medicare Advantage Plan Directory |
| CMS region | Kansas City | RECORDED | CMS Medicare Advantage Plan Directory |
| Enrollment (CMS-reported) | 18,849 | RECORDED | CMS Medicare Advantage Plan Directory |
| Legal entity address | 505 City Parkway West, Orange, CA, 92868 | RECORDED | CMS Medicare Advantage Plan Directory |

### CalOptima Health OneCare (H5433) — CMS MA Plan Directory contact (all RECORDED)

Directory contact as submitted by the organization to CMS. This is the administrative CMS-directory contact, not necessarily a consumer help line.

| field | value | warrant | source |
| --- | --- | --- | --- |
| Contact name | Customer Service | RECORDED | CMS Medicare Advantage Plan Directory |
| Contact phone | 1-877-412-2734 | RECORDED | CMS Medicare Advantage Plan Directory |
| Contact email | acardenas@caloptima.org | RECORDED | CMS Medicare Advantage Plan Directory |
| Contact address | 505 City Parkway West, Orange, CA, 92868 | RECORDED | CMS Medicare Advantage Plan Directory |
| Contact last updated | 02/28/2017 | RECORDED | CMS Medicare Advantage Plan Directory |