Medicare in Castaic and Stevenson Ranch by the numbers
Castaic and Stevenson Ranch are young, high income, owner occupied communities at the north end of the Santa Clarita Valley, where the person turning 65 is usually still working. ZIP code 91384 in Castaic is home to 26,478 people, 2,779 of them 65 or older, which is 10.5 percent, with a median age of 35.8, a median household income of $131,689 and 84.1 percent of homes owner occupied, one of the highest ownership rates of any ZIP code on this site; 91381 in Stevenson Ranch is home to 22,582, 2,158 of them past 65, which is 9.6 percent, with a median age of 40.1, $158,504 and 65.2 percent. Together that is 49,060 people and 4,937 of Medicare age, 10.1 percent against 15.2 percent for Los Angeles County, and 74.4 percent of occupied homes owner occupied, 10,919 households out of 14,677, against 45.9 percent countywide. Those counts come from the 2020 to 2024 American Community Survey, summed from the age brackets rather than estimated from a percentage. Of residents aged 5 and over, 62.5 and 64.5 percent speak only English at home, and 28.9 and 9.1 percent speak Spanish.
No hospital in either ZIP, and Henry Mayo a few minutes down the 5
There is no hospital inside 91384 or 91381. Henry Mayo Newhall Hospital at 23845 McBean Pkwy in Valencia is licensed for 334 beds and is the general hospital for the whole Santa Clarita Valley. There is no Kaiser hospital in the valley: the nearest are Kaiser Foundation Hospital Panorama City at 13652 Cantara St, licensed for 218, and Kaiser Foundation Hospital Woodland Hills at 5601 De Soto Ave, licensed for 274, both down the freeway and reachable only through a Kaiser plan. Those counts come from California state licensing records, read this month. Henry Mayo and Kaiser are separate systems, and the plan's medical group decides whether an admission means Valencia or the Valley. Medicare Advantage networks are built around medical groups rather than around the insurance company's name, so two plans carrying the same logo can reach completely different doctors, and those contracts are renegotiated year to year. Before you enroll in anything, Lara pulls each plan's current directory and confirms your doctors, your hospital and your pharmacy, and she repeats that check each fall when plans publish their changes.
Turning 65 while still working, the income surcharge, and a house on the hill
With median ages in the late thirties and incomes well above six figures, most people here reach 65 still on the job, and the first Medicare question is not which plan but whether to enroll at all yet. If your health coverage comes from your own or your spouse's current employer with 20 or more employees, you can usually delay Part B without penalty, and when that employment or coverage ends a Special Enrollment Period gives you eight months to sign up penalty free; COBRA and retiree plans do not count as current employer coverage for that purpose, and anyone contributing to a health savings account should plan the timing before taking Part A, since Part A and HSA contributions do not mix. The income surcharge belongs in the same conversation: Part B and Part D premiums carry an income related adjustment for higher earners, set from the tax return of two years earlier, and a life changing event such as retirement can be reported to Social Security on Form SSA-44 so that current income is used instead. With three in four homes owner occupied, the long term care conversation, how care would be paid for and how a home is treated under Medi-Cal's rules, belongs in the same review. Once the timing is settled, the ordinary comparison follows, a Medicare Supplement's monthly premium against a $0 premium Medicare Advantage plan with the right medical group, with out of pocket maximums across the county's general enrollment plans running from $199 to $9,250 in 2026 and the Part D cap at $2,100.
Medicare Advantage in Castaic and Stevenson Ranch by the numbers, 2026
Castaic and Stevenson Ranch sit in Los Angeles County, one of the biggest Medicare Advantage markets in the country. In 2026 the county has 74 Medicare Advantage plans open to general enrollment plus 47 Special Needs Plans, per the CMS 2026 Landscape file, and 65 of those 74 plans charge a $0 monthly plan premium. About 57 percent of the county's 1.7 million Medicare beneficiaries are enrolled in Medicare Advantage or other Medicare health plans (CMS, May 2026). Our analysis of the same CMS file puts the average in network out of pocket maximum across the county's general enrollment plans at $2,428, with a median of $1,700 and a range from $199 all the way to $9,250. That spread is the whole argument for comparing before you enroll: two $0 premium plans can differ by thousands of dollars in a bad year. We run that comparison for Castaic and Stevenson Ranch families at no cost: (818) 472-5484.
Straight answers, and the fine print up front
Here is exactly how this works. Lara is a licensed independent insurance agent, and her help costs you nothing, because licensed agents are paid by the insurance companies whose plans they represent. Your premium is the same whether you enroll through an agent, online, or directly with the insurer. What an independent agent adds is the comparison: she is appointed with several carriers rather than one. She does not carry every plan available in Los Angeles County, and she will tell you when something she cannot sell looks like the better fit for you.
Medicare help in Castaic and Stevenson Ranch from a licensed broker
Goulson Insurance Services Inc. is an independent insurance agency, and our agents work as licensed brokers for Castaic and Stevenson Ranch families. Independent means no single insurance carrier employs us or decides what we recommend, so the comparison starts with your doctors, your prescriptions, and your budget. We compare Medicare Advantage, Medicare Supplement, and Part D drug plans from multiple carriers side by side and help you enroll in the one that fits. The agency holds CA license 6020069, Lara Goulson holds CA license 0E69969, and the team works in English, Spanish, and Hebrew. Whether you searched for Medicare help near me, a broker, or a local agency, it is the same licensed help, and it costs you nothing, because carriers pay broker compensation, which is regulated by Medicare.
What we help Castaic and Stevenson Ranch families with
Medicare Advantage, Medicare Supplement and Part D comparisons, plus life insurance, long term care and final expense coverage for families in 91384 and 91381.
Call or text (818) 472-5484 for a free Castaic or Stevenson Ranch Medicare review.
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