Dignity St. Joseph’s, Adventist Health Dameron, San Joaquin General and Kaiser Manteca — a deep menu and one of the Valley’s largest dual-eligible populations.
What to know before you compare plans in San Joaquin County
Stockton and Lodi offer a deep Advantage menu built on St. Joseph’s, Dameron and Lodi Memorial, Kaiser Senior Advantage from Manteca and Modesto, Health Plan of San Joaquin’s Medi-Medi Plan for dual-eligible residents, every Medigap carrier in California and the full Part D lineup.
We compare what is sold at your ZIP code, confirm your doctors and medical group, and set Advantage beside a Medigap policy so the trade-off is plain.
Care close to home
Major care in the area includes:
Dignity Health St. Joseph’s Medical Center
Adventist Health Dameron & Lodi Memorial
San Joaquin General Hospital
Kaiser Permanente Manteca & Stockton clinics (Senior Advantage only)
Sutter Tracy
Plan networks differ — we check that your doctors and hospital are covered before you enroll.
Communities we serve
Lodi, Manteca, Tracy, Lathrop, Lincoln Village, Brookside, Morada, Woodbridge.
When you can enroll
Turning 65? Your Initial Enrollment Period is the 7 months around your birthday. Already on Medicare? The Annual Election Period is Oct 15–Dec 7, Medicare Advantage Open Enrollment runs Jan 1–Mar 31, and California’s Medigap birthday rule gives you 60 days from your birthday each year to switch supplements without health questions.
Your options
Which kind of plan fits you in Stockton?
Medicare Advantage
All-in-one Part C plans, often $0 premium, built on a county network — the choice of about half of California, and the one that changed most for 2026.
Medigap pairs with Original Medicare and works with any provider nationwide — UCLA, Stanford, Cedars, City of Hope, or your doctor in Arizona — with California’s birthday rule to switch every year.
San Joaquin County typically offers a deep Medicare Advantage menu, every Medigap carrier in California, and the full Part D lineup. Availability is set by county and changes each plan year.
Will my Stockton doctors take a Medicare Advantage plan?
Each system contracts with some Medicare Advantage plans and not others, and the lists change every October. With Original Medicare and a Medigap policy there is no network to check, except Kaiser, which is reached only through Kaiser Senior Advantage. We confirm your doctors before you enroll.
How much does your help cost?
Nothing. Independent agents are paid by the carriers when you enroll, so comparing plans and reviewing your coverage each year is free to you.
Written and reviewed by Darin Weidauer — licensed insurance agent (NPN 18580338, CA License #0M00978), Gerontologist (USC Leonard Davis School of Gerontology), MBA, Registered Social Security Analyst, and 22-year U.S. Air Force veteran.Last reviewed September 4, 2026. Plan availability, benefits and costs change every plan year — verify current details at Medicare.gov, 1-800-MEDICARE, or California HICAP at 1-800-434-0222.