Medicare Advantage Primary Care for Seniors: 2026 Guide

Fact-checked September 18, 2026 · Medicare guidance for Southern California

Finding primary care after 65 starts with two questions: what does your Medicare coverage pay for, and can you get care that fits your needs? This guide explains preventive visits, common costs, and practical steps for choosing care in Southern California, including Riverside County, San Bernardino County, and the High Desert.

1. Know how your Medicare coverage works

Original Medicare includes Part A and Part B. You can use providers who accept Medicare, and a specialist referral is generally unnecessary. Original Medicare has no annual out-of-pocket cap. Medicare Supplement Insurance, also called Medigap, can help pay certain out-of-pocket costs. [1]

Medicare Advantage is an alternative way to receive Medicare benefits through a private plan. Costs and access rules vary:

• HMO plans: Most require a primary care provider and specialist referrals. Care generally must stay within the network, with exceptions such as emergencies, urgent care, and out-of-area dialysis. [2]
• PPO plans: Generally allow out-of-network covered care at higher cost and do not require primary care provider selection or specialist referrals. [3]

A plan's name alone does not establish whether a particular clinician or office is in its network.

2. Understand the 2026 costs

CMS lists the standard Part B premium as $202.90 per month and the annual Part B deductible as $283 for 2026. Some people pay a higher premium because of income. [4]

With Original Medicare, most medically necessary outpatient provider services involve 20% coinsurance after the deductible. This percentage uses the Medicare-approved amount. Ask whether the provider accepts assignment, meaning that amount is accepted as full payment for a covered service. Supplemental coverage may reduce your share. [5]

Medicare Advantage has plan-specific copayments, deductibles, and an annual out-of-pocket limit for covered Part A and Part B services. Part D prescription drug costs are separate from that limit. You generally still pay the Part B premium. A $0 plan premium does not mean all care is free. Check the plan's current benefits before scheduling. [1]

3. Schedule the right type of visit

Preventive visits

The Welcome to Medicare visit is available once during your first 12 months with Part B. It reviews health history and prevention needs; it is not a comprehensive physical examination. [6]

The Annual Wellness Visit develops or updates a prevention plan. It includes a health risk assessment, medication review, routine measurements, and a check for possible cognitive impairment. It is covered once every 12 months. Your first cannot occur within 12 months of starting Part B or receiving a Welcome visit. It is not a routine physical. Original Medicare does not cover routine physical exams. [7]

Visits for symptoms or ongoing conditions

Care for new symptoms or conditions such as diabetes or high blood pressure is different from prevention planning. Tell the office what you need when booking. With Original Medicare, neither qualifying preventive visit has a deductible or coinsurance when assignment is accepted. Additional evaluation, tests, or treatment can bring separate charges. Ask whether your concerns need a separate problem-focused appointment. [7]

4. Make prevention personal

Medicare covers many preventive services, including certain cancer screenings, diabetes screenings, bone-density tests, and vaccines. Eligibility and timing vary by service. Most qualifying preventive services have no patient charge when the provider accepts assignment; this does not make every screening or test free. [8]

Coverage rules and clinical recommendations answer different questions. Work with your clinician to choose care based on your health, previous results, risks, and preferences. For example, the U.S. Preventive Services Task Force recommends colorectal cancer screening for average-risk adults ages 45–75 who have no symptoms; at ages 76–85, screening is selective and depends on health, screening history, and preferences. [9]

Ask what each proposed test could change about your care. Turning 65 does not create a single testing schedule that suits everyone.

5. Look for care you can realistically access

If you are seeking care in Perris, Hemet, Victorville, Ontario, or nearby communities, consider the trip to the office as well as coverage. Ask about:

• New-patient availability, routine appointment waits, and help with urgent concerns.
• Transportation, parking, mobility access, and nearby laboratories or specialists.
• Prescription renewals, test-result follow-up, and communication between visits.
• Care in your preferred language or access to a qualified interpreter.

Ask for language assistance when booking. Health programs subject to federal language-access requirements must provide required assistance without charging the patient. Speaking the same language can support communication, but it does not change your insurance network or referral rules. [10]

6. Follow these steps when switching to Hernandez Health

For help exploring a switch, Hernandez Health's workflow starts with your licensed insurance agent or broker. If you prefer impartial Medicare counseling, contact California HICAP. This is the clinic's recommended process, not a Medicare enrollment requirement.

1. Review whether your current coverage fits your care needs before considering a plan change.
2. Have your health plan confirm the exact clinician, office, network participation, any required provider assignment, and the effective date of a change.
3. Then contact Hernandez Health to confirm appointment availability and arrange the transfer of relevant records.

For Original Medicare, confirm that the clinician accepts Medicare and assignment. Do not assume that every Hernandez Health clinician or location participates in every Medicare Advantage plan.

7. Check enrollment dates before changing coverage

For most people first eligible at 65, initial enrollment spans seven months: three months before the birthday month, that month, and three months afterward. Some people enroll automatically; others must apply. Job-based coverage and other circumstances can affect when to enroll. Check your situation before delaying Part B. [11]

• October 15–December 7: Annual Medicare Open Enrollment allows eligible coverage changes. Changes made in fall 2026 generally begin January 1, 2027. [12]
• January 1–March 31: People already in Medicare Advantage can switch Advantage plans or return to Original Medicare and join a separate drug plan. [13]
• Special Enrollment Periods: Certain circumstances, such as a move or loss of coverage, may allow other changes. [13]

These windows concern coverage changes; changing a primary care provider within an existing plan can follow different plan rules.

Before returning to Original Medicare, review prescription drug coverage and whether you can obtain any Medigap coverage you want. A Medicare enrollment window does not automatically guarantee access to a Medigap policy. HICAP can help explain the rules for your situation. [16]

8. Prepare for your appointment

Bring your Medicare and other insurance cards, medication list, allergies, relevant records, and questions. Include nonprescription medicines, vitamins, and supplements. If someone helps with your care, decide whether you want them involved in the visit.

Before leaving, ask for clear next steps: which medicines to take, which tests or referrals are needed, how results will reach you, and when to return. If instructions are unclear, ask the care team to explain them again in your preferred language.

9. Get help comparing your options

California HICAP offers free, confidential Medicare counseling, including help understanding coverage and Medi-Cal coordination. Call 1-800-434-0222 to reach assistance for your county. [14]

For official Medicare information, call 1-800-MEDICARE (1-800-633-4227) and request an interpreter if needed. Medicare.gov also provides information in Spanish. Use these resources alongside your plan's benefit documents when checking coverage. [15]

This guide provides general education. Your clinician can help with care decisions; Medicare, your health plan, and HICAP can help confirm coverage for your situation.