What does Understood Care do?

Understood Care provides one-to-one patient advocacy for Medicare members and caregivers, including help with benefits, appointments, care coordination, medical bills, insurance questions, denials, and paperwork.

How can a patient advocate help with California Medicare Statistics: Enrollment by County, MA Share, ER Waits | Understood Care?

Understood Care advocates help with california medicare statistics: enrollment by county, ma share, er waits | understood care by explaining options, organizing paperwork, coordinating care, and helping families understand Medicare coverage and next steps.

Does Understood Care work with Medicare patients?

Yes. Understood Care focuses on Medicare patients and their families, with advocates who understand Medicare, Medicare Advantage, care coordination, coverage rules, billing issues, and appeal pathways.

Will I have a dedicated patient advocate?

Yes. This is Understood Care's first commitment: One Advocate, For Life. Every patient is matched at intake with one dedicated patient advocate and given that advocate's personal phone number, email, and text. Patients do not go into a call queue. The assignment is permanent: even after Understood Care has completed all tasks for a patient, they keep the same advocate. If a patient needs us again six months later, they will still have the same advocate.

How often will my Understood Care advocate communicate with me?

Understood Care follows a frequent-communication procedure with both active and follow-up patients. While the advocate is actively working on a patient's case, they communicate every 7 days by phone, text, or email with progress information. Once the patient has been helped with everything they needed, the case moves to a follow-up cadence: the advocate still checks in every month.

Does Understood Care use AI?

Yes. Understood Care is AI-supported. AI tools help every advocate surface programs, benefits, and services tied to where the patient lives, with the most up-to-date eligibility information. The result is that patients and advocates get the resources they need faster, while the human advocate stays in the loop on every patient's case.

Patient Advocacy Without the Call Center

California Medicare, by the Numbers

The data layer behind our California guide and all 73 city pages, in one place: CMS enrollment, Census demographics, and federal shortage designations, county by county.

7,106,857Medicare beneficiaries statewide (2025)

51.2%chose Medicare Advantage plans

1,805,955dual-eligible for Medicare and Medi-Cal

1,315,254Californians 65+ live alone

176 minmedian ER visit statewide (CMS)

559federal primary-care shortage designations

Medicare Enrollment by County

Counties covered by our city pages (25 counties, 6,370,561 beneficiaries). Each county links to its anchor city page.

County	Medicare beneficiaries	Medicare Advantage share	Dual-eligible	Residents 65+	Shortage designations
Los Angeles County	1,681,826	56.6%	546,516	1,448,571	96
San Diego County	612,140	53.4%	127,001	493,837	25
Orange County	592,068	55.4%	128,907	498,997	20
Riverside County	442,612	63.1%	104,680	371,046	15
San Bernardino County	344,125	66.7%	99,762	269,001	22
Santa Clara County	307,121	49.8%	70,660	273,921	13
Sacramento County	290,973	60.7%	77,745	236,467	7
Alameda County	273,896	51.6%	69,065	246,841	13
Contra Costa County	224,939	52.6%	39,228	193,816	2
Ventura County	174,236	41.7%	30,118	141,315	2
Fresno County	159,187	48.2%	51,032	128,751	33
San Francisco County	158,478	50.1%	56,250	143,605	8
Kern County	133,291	47.4%	43,757	105,653	27
San Joaquin County	126,647	53.8%	33,666	104,481	5
Sonoma County	120,412	53.9%	17,192	101,805	7
Placer County	100,329	56.3%	10,918	83,236	2
Stanislaus County	95,270	57.2%	26,369	74,905	5
Solano County	91,276	55.5%	16,784	76,287	1
Santa Barbara County	85,449	20.5%	16,023	71,982	9
Monterey County	73,825	16.2%	16,296	63,232	10
San Luis Obispo County	73,058	24.9%	9,299	60,708	1
Tulare County	69,916	36%	25,916	55,879	20
Shasta County	49,255	12.7%	11,881	38,580	13
Butte County	48,402	16.6%	12,258	38,054	9
Merced County	41,830	27.9%	14,366	33,068	8

Statewide, 51.2% of beneficiaries chose Medicare Advantage in 2025. Counties above that line see more prior authorizations and more denials worth appealing; counties below it lean on Medigap rights, which in California are unusually strong: beyond the one-time window at 65, the birthday rule lets you switch to an equal-or-lesser Medigap plan for 60 days every year with no underwriting, and the state requires insurers to offer at least one plan to beneficiaries under 65 who qualify through disability. About 11.3% of California seniors live below the poverty line, the group most likely to qualify for unclaimed help: Extra Help and the Medicare Savings Programs, which California now grants without an asset test. For the full rundown, sources included, see our California patient advocacy hub.

The Numbers Are the Backdrop. The Help Is the Point.

One dedicated advocate for the bills, appeals, appointments, and paperwork, serving every California county virtually, usually at $0 with Medicare.

Get Started

Or start from your city: every California city we serve.

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Care Navigation

When should you ask for a patient advocate? The answer might surprise you

Not sure when to ask for a patient advocate? Get clear signs you may need help navigating your care. Connect with a patient Advocate now.

Sources: CMS Medicare Monthly Enrollment (2025); US Census Bureau ACS 2023 5-year; CMS Care Compare Timely & Effective Care (median ER minutes, period ending 06/30/2025); HRSA Health Professional Shortage Area designation file. Data retrieved 2026-08-07. Understood Care is an independent private advocacy service, not a government agency.