Retire WellSan Diego

Best Hospitals in San Diego for Retirees: The Systems, the Rankings, and the Medicare Catch

care, mapped to your Medicare

Torrey Pines above the Pacific near the La Jolla medical corridor

The Short Answer

Hospital care is a genuine San Diego strength: UC San Diego Health ranked No. 1 in the region and No. 5 in California in U.S. News' 2025–26 ratings, with Scripps right behind at No. 2. But for a retiree, "best" depends less on rankings than on your Medicare path. Scripps' two big medical groups stopped taking Medicare Advantage in 2024, and UC San Diego Health dropped most Advantage plans in January 2026 — both stay fully open on Original Medicare with a Medigap supplement. Sharp has the county's broadest Medicare Advantage access, and Kaiser is reachable only through Kaiser's own Advantage plan. Pick your Medicare lane first, then your system: on Original Medicare plus Medigap, every non-Kaiser door in the county stays open.

Key Takeaways

  • UC San Diego Health is U.S. News' No. 1 hospital in the San Diego region for the sixth straight year (2025–26) and No. 5 in California, nationally ranked in nine specialties — including geriatrics at No. 18.
  • Scripps La Jolla Hospitals rank No. 2 regionally and No. 6 in California — but Scripps Clinic and Scripps Coastal stopped accepting Medicare Advantage plans on January 1, 2024. Original Medicare plus a Medigap supplement still opens every Scripps door.
  • UC San Diego Health followed in January 2026: it ended its Humana contract, and the UnitedHealthcare AARP PPO and Blue Shield PPO left the county — it now takes Original Medicare, all Medigap plans, and only a short list of Advantage plans.
  • Sharp is the system that stayed in the Advantage game: five acute-care hospitals plus five specialty hospitals, and in-network contracts with Sharp Direct Advantage and multiple UnitedHealthcare plans, alongside Original Medicare and all Medigap plans.
  • North County's hospitals changed hands on July 1, 2026: Palomar's Escondido and Poway hospitals now operate as Palomar UC San Diego Health, and Sharp took over Tri-City in Oceanside as Sharp Tri-City Medical Center.
  • The safety net is strong everywhere: six trauma centers countywide, and in 2022 San Diego became the first county in the nation where every eligible hospital ED earned geriatric emergency accreditation.

The access map comes before the rankings

San Diego's four major systems — Scripps Health, Sharp HealthCare, UC San Diego Health, and Kaiser Permanente — all clear a high quality bar by national measures. What separates them for anyone 65-plus is who takes what. Since January 2024, Scripps' two big doctor groups accept no Medicare Advantage plans. Since January 2026, UC San Diego Health accepts very few. Sharp still contracts broadly with Advantage plans, and Kaiser can only be reached through Kaiser's own plan. On Original Medicare with a Medigap supplement, every non-Kaiser door in the county stays open. Hold that frame while you read the rankings: they say which hospital is strongest at what; your Medicare path decides which of them will see you.

How San Diego's hospitals actually rank

In the 2025–26 U.S. News Best Hospitals ratings, UC San Diego Health ranked No. 1 in the San Diego region for the sixth consecutive year and No. 5 in California, with national rankings in nine specialties — obstetrics and gynecology (No. 7), pulmonology (No. 8), and, most relevant here, geriatrics at No. 18. Scripps La Jolla Hospitals (Scripps Memorial La Jolla and Scripps Green, rated together) came in No. 2 regionally and No. 6 in the state, nationally ranked in six specialties including diabetes and endocrinology (No. 13), orthopedics (No. 18), and geriatrics (No. 38). Sharp Memorial ranked No. 3 in the region. No San Diego hospital made the national Honor Roll — this is a very good hospital county, not a Mayo-or-Cleveland one.

Emergency infrastructure tells the same two-tier story. The county's trauma system has six designated trauma centers: two adult Level I centers (UC San Diego Medical Center in Hillcrest and Scripps Mercy), three Level II centers (Scripps Memorial La Jolla, Sharp Memorial, and Palomar Medical Center Escondido — the only one in North County), plus Rady Children's for pediatrics. For stroke — the emergency retirees most often plan around — UC San Diego Health holds comprehensive stroke center certification at both Hillcrest and Jacobs Medical Center, the only two-site system in the county; Scripps Memorial La Jolla and Sharp Grossmont carry the same top-tier certification.

Scripps Health — five campuses, on Original Medicare terms

Scripps runs five hospital campuses: Scripps Memorial and Scripps Green in La Jolla, Scripps Mercy in Hillcrest (a Level I trauma center), Scripps Mercy Chula Vista, and Scripps Memorial Encinitas. Its center of gravity is the coast — La Jolla for ranked specialty care, Encinitas for coastal North County — and its strengths line up well with retiree needs: top-15 national diabetes/endocrinology care and top-20 orthopedics, which is where the knee and hip replacements happen.

Its Medicare posture is what reshaped local plan shopping. Effective January 1, 2024, Scripps Clinic and Scripps Coastal — the system's two big medical groups — stopped accepting Medicare Advantage plans, a decision that hit roughly 32,000 patients on Anthem, Blue Shield, UnitedHealthcare, and Health Net plans. That policy still stands: Scripps' own Medicare page points Medicare patients to Original Medicare plus a supplement. If Scripps doctors are your plan, Original Medicare + Medigap is your lane.

Sharp HealthCare — the biggest footprint, the broadest Advantage access

Sharp is San Diego's largest system: five acute-care hospitals, five specialty hospitals, three medical groups, and about 2,700 affiliated physicians. Its geography is the mirror image of Scripps — Sharp Memorial in Kearny Mesa is the flagship, but the system's real distinction is that it anchors the parts of the county nobody else does: Sharp Grossmont in La Mesa (East County's hospital, and a comprehensive stroke center), Sharp Chula Vista in the South Bay, small Sharp Coronado across the bridge, and — since July 2026 — Sharp Tri-City in Oceanside.

For Medicare shoppers, Sharp is the system that stayed in the Advantage game. Sharp's accepted-plans list (as of July 2026) includes Original Medicare, all Medigap plans, Sharp Health Plan's own Sharp Direct Advantage HMOs, and a slate of UnitedHealthcare Advantage plans. Among the county's non-Kaiser systems, Sharp is now the one an Advantage plan can still reliably keep fully in-network. A contract list is a snapshot, though, so confirm your exact plan and medical group in the Medicare Plan Finder before enrolling.

UC San Diego Health — the academic medical center, now mostly Original-Medicare territory

UC San Diego Health is the region's academic medical center: Jacobs Medical Center and its neighboring specialty pavilions in La Jolla, the Hillcrest campus (the county's only academic Level I trauma center), and the East Campus Medical Center. This is where the county's complex care concentrates: nine nationally ranked specialties, two comprehensive stroke centers, Moores Cancer Center.

The network news mirrors Scripps, two years later. Effective January 1, 2026, UC San Diego Health ended its Humana contract entirely, the UnitedHealthcare AARP Advantage PPO and Blue Shield Advantage PPO were discontinued in San Diego County, and SCAN access narrowed to a single plan with a limited primary-care network. What remains, per UCSD's own plan list as of July 2026: Original Medicare, all Medigap plans, and a short list of special-case Advantage plans (UC retiree plans, one SCAN HMO, a kidney-care plan). The practical read: if guaranteed access to the county's No. 1-ranked hospital matters to you, the reliable route is Original Medicare plus a supplement.

Kaiser Permanente — three hospitals, one way in

Kaiser operates three hospitals in the county: the San Diego Medical Center in Kearny Mesa, Zion Medical Center in Grantville, and the San Marcos Medical Center, opened August 2023 — the county's newest hospital and a real addition for inland North County. Kaiser works differently from everything above: it is insurer and provider in one. On Medicare, you reach Kaiser doctors and hospitals by enrolling in Kaiser Permanente Senior Advantage, its Medicare Advantage HMO for San Diego County. There is no Medigap route into Kaiser, and no Kaiser route into Scripps or UCSD. Choosing Kaiser at retirement is an all-in decision on a closed network, and unwinding it later runs into the Medigap underwriting limits covered in our San Diego Medicare guide.

July 2026: North County's hospitals changed hands

If you last researched North County hospitals even a year ago, your notes are out of date. Two things happened on the same day, July 1, 2026:

For a retiree picking a North County town, the practical change is this: both Medicare paths now reach North County — Sharp (Advantage-friendly) on the coast at Oceanside, UCSD's orbit (Original-Medicare-friendly) inland at Escondido and Poway, with Scripps Encinitas and Kaiser San Marcos in between. What the new operators mean for individual plan networks will settle over the next enrollment cycles, so treat any pre-2026 network information about these campuses as expired and re-verify each fall.

Which system anchors your part of the county

Geography narrows the field before insurance does: Palomar Medical Center Escondido is North County's only trauma center, and Sharp Grossmont is East County's comprehensive stroke center. Region by region:

  • Central San Diego — the dense middle: UCSD Hillcrest, Scripps Mercy, Sharp Memorial, and Kaiser's two hospitals all sit within a few miles of each other. Living here, every system is close; only your insurance narrows the field. See our Central San Diego guide.
  • The central coast (La Jolla to Del Mar) — the specialty-care capital: Jacobs Medical Center plus Scripps Memorial and Scripps Green. The coastal retirement guide covers the towns around them.
  • North County — coast: Sharp Tri-City (Oceanside) and Scripps Encinitas; inland: Palomar UC San Diego Health (Escondido and Poway) and Kaiser San Marcos. Details town by town in the North County guide.
  • East County — Sharp Grossmont in La Mesa carries the region, and it's a comprehensive stroke center. East County living is effectively Sharp country; see the East County guide.
  • South Bay — Sharp Chula Vista and Scripps Mercy Chula Vista split the area, with Sharp Coronado serving the island. Covered in the South Bay guide.

One countywide reassurance: in 2022, San Diego became the first county in the nation where every eligible hospital ED earned geriatric emergency department accreditation from the American College of Emergency Physicians — 18 accredited ERs with geriatric-trained staff, from Oceanside to Chula Vista. UCSD's Gary and Mary West Emergency Department in La Jolla, California's first accredited geriatric ED, holds the top Level 1 Gold rating. And emergency care is covered at any hospital regardless of your plan's network — the network question is about your ongoing doctors, not the ambulance.

How to choose

1. Settle your Medicare lane first. This is the fork: Original Medicare + Medigap keeps Scripps, Sharp, UCSD, and Palomar all open at higher monthly premiums; Medicare Advantage trades that breadth for lower premiums and, in San Diego, points you mainly toward Sharp or Kaiser. The mechanics — costs, enrollment windows, and the one-time 6-month Medigap open enrollment when you first get Part B — are in our San Diego Medicare guide. 2. Let the county map narrow it. Match the regional list above to where you'll actually live. Every region has at least one major-system anchor, but not every region has every system — East County is effectively Sharp, inland North County is now UCSD's orbit. 3. If you're leaning Advantage, verify before you enroll. Networks here have changed twice in three years. Run your ZIP through the Medicare Plan Finder and confirm the hospital and the medical group you'd use are in-network for the coming year, not the year you read about. 4. Read the specialty rankings as descriptions, not referrals. UCSD's national rankings concentrate in academic and complex care, Scripps' in endocrinology and orthopedics, and cardiac programs rank at all three ranked systems. Where you should be treated for a specific condition is a question for your own clinician, inside whatever network your plan defines. 5. Confirm the practice, not just the system. Before committing, ask the specific primary-care practice you'd join whether it's accepting new Medicare patients on your plan type.

San Diego's hospital networks changed in January 2024 (Scripps), January 2026 (UCSD), and July 2026 (the North County operators). So the durable habit is annual: each fall, before open enrollment closes on December 7, re-check your plan's directory for your hospital and your medical group. That check produces new information every year. The rankings mostly don't.

Sort out your Medicare lane before you pick a hospital

In San Diego, your choice between Original Medicare + Medigap and a Medicare Advantage plan decides which hospital systems you can use — and the window to choose freely is widest when you first turn 65. Our Medicare guide walks through the costs, the enrollment windows, and how each path maps to Scripps, Sharp, UCSD, and Kaiser.

Read the San Diego Medicare guide

Educational only — not medical or insurance advice. Confirm plan networks with Medicare.gov or a licensed agent. We may earn a referral fee from partners; it never affects our recommendations.

Frequently Asked Questions

What is the best hospital in San Diego?

By U.S. News' 2025–26 ratings, UC San Diego Health is No. 1 in the San Diego region (sixth straight year) and No. 5 in California, nationally ranked in nine specialties including geriatrics (No. 18). Scripps La Jolla Hospitals rank No. 2 regionally and No. 6 in the state, and Sharp Memorial is No. 3 regionally. For a retiree, though, access matters as much as rank — Scripps and UCSD now serve Medicare patients mainly through Original Medicare plus a Medigap supplement, not Medicare Advantage.

Do San Diego hospitals accept Medicare Advantage plans?

It varies sharply by system. Sharp contracts with Sharp Direct Advantage and several UnitedHealthcare Advantage plans, and Kaiser serves Medicare members through its own Senior Advantage HMO. Scripps' medical groups (Scripps Clinic and Scripps Coastal) stopped accepting Medicare Advantage in January 2024, and UC San Diego Health dropped most Advantage plans in January 2026. All of the non-Kaiser systems accept Original Medicare and Medigap supplements. Always verify your specific plan for the coming year in the Medicare Plan Finder.

Does Scripps take Medicare?

Yes — Original Medicare. Scripps accepts Original Medicare (Parts A and B) and Medicare Supplement (Medigap) plans across its five hospital campuses. What its two big doctor groups, Scripps Clinic and Scripps Coastal, no longer accept is Medicare Advantage — they exited those contracts on January 1, 2024, affecting about 32,000 patients. If keeping Scripps doctors matters to you, plan on Original Medicare plus a Medigap policy and a Part D drug plan.

Can I use UC San Diego Health with a Medicare Advantage plan in 2026?

Mostly no. As of January 1, 2026, UC San Diego Health is no longer contracted with Humana, and the UnitedHealthcare AARP Advantage PPO and Blue Shield Advantage PPO were discontinued in San Diego County. Its published list still includes Original Medicare, all Medigap plans, and a handful of exceptions — UC retiree plans, one SCAN HMO with a limited primary-care network, and a specialized kidney-care plan. The dependable route into UCSD is Original Medicare with a supplement.

Which hospitals serve North County San Diego now?

The lineup changed on July 1, 2026. Palomar's hospitals in Escondido (North County's only trauma center) and Poway now operate as Palomar UC San Diego Health under a joint powers authority with UCSD. Tri-City in Oceanside became Sharp Tri-City Medical Center under a 30-year, voter-approved affiliation with Sharp, which is investing at least $100 million in the campus. Scripps Memorial Encinitas covers the coastal corridor, and Kaiser's San Marcos hospital (opened 2023) serves Kaiser members inland.

Where are San Diego's trauma centers, and is emergency care good for seniors?

The county has six designated trauma centers: Level I at UC San Diego Medical Center Hillcrest and Scripps Mercy, Level II at Scripps Memorial La Jolla, Sharp Memorial, and Palomar Medical Center Escondido, plus Rady Children's for pediatrics. For seniors specifically, San Diego became the first county in the nation (2022) where every eligible hospital ED earned geriatric emergency accreditation. And emergencies are covered at any hospital regardless of your plan's network — network restrictions apply to your ongoing care, not the ER.

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