Sage Mountain Senior Living

Assisted Living & Memory Care · Thousand Oaks, CA

Sage Mountain Senior Living

Assisted Living & Memory Care · Thousand Oaks, CA

3499 Grande Vista Dr, Newbury Park, CA 91320 View map

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Overview of Sage Mountain Senior Living

Sage Mountain, located in Thousand Oaks, CA, is a community offering a variety of care options where remarkable moments are created daily, fostering a familial atmosphere based on top-of-the-line assisted living and memory care services. The community celebrates the good times and offers support in challenging moments, aiming to positively impact its residents’ lives and uphold the values of family, compassion, and celebration. They seek to extend these qualities to teammates, residents, resident families, and the community.

Sage Mountain provides Assisted Living and Memory Care options, promoting independent living with a caring support system. Assisted living apartments are designed for various needs, offering social opportunities, comfort, and relief from home upkeep responsibilities, featuring amenities like in-apartment kitchenettes, walk-in showers, and 24-hour emergency alert systems. Memory Care at Sage Mountain focuses on individualized care for those with dementia, ensuring safety, dignity, and personalized support with spacious closets, walk-in showers, and 24-hour emergency alert systems. Sage Mountain is committed to creating personalized, enriching experiences for its residents of assisted living and memory care.

(805) 375-0695

Types of Care at Sage Mountain Senior Living

Assisted Living Memory Care

145-bed community

A larger shared setting that may offer more common spaces and organized community services.

7 years in operation

An established community with some operational experience and growing routines.

Walk Score: 14 / 100

Car-dependent. Most errands require a car, with limited nearby walkable options.

BBB Rating: A+ (Not Accredited)

An independent rating from the Better Business Bureau based on factors such as complaint history, transparency, and business practices.
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About this community

Occupancy

Occupancy rate

70%

Similar to the California average: 72.8%

Occupied beds

102 / 145

Average occupied beds in California homes 87 beds

Facility TypeResidential Care Elderly

StatusLicensed

IssuanceNovember 8, 2018

CountyVentura

Sage Mountain Senior Living is legally operated by Sage Mountain Sr. Housing Partners; Agemark Mgmt, and administrated by Christian Castillo.

Get floorplan photos & videos Schedule a home tour Get detailed pricing Check availability Get brochure

Since 2021 · 5 years of data 56 citations 85 total visits 53 complaint visits 5 official inspections 32 complaint investigations

Inspection Score

Well below the California average for assisted living residences.

California assisted living residences benchmark: C 76/100

Inspection Scorecard This scorecard compares key inspection, citation, and complaint metrics at this facility against the California state average. Metrics rated ≥15% worse than average are highlighted in red; those ≥15% better are highlighted in green.

Since 2021 vs. California state average

Overall vs. CA average

Latest Inspection February 5, 2026

Citations Citations are formal regulatory issues recorded during state inspections.	This Facility	CA Average	vs. CA Avg
Total citations Formal regulatory issues recorded by inspectors across all inspection types.	56	10	This facility has 460% more total citations than a typical California assisted living residence (56 vs. CA avg 10).↑ 460% worse
Serious citations (Type A) Violations that pose an immediate risk to resident health or safety. Type A citations are the most serious and typically require prompt corrective action.	31	3	This facility has 933% more serious citations (type a) than a typical California assisted living residence (31 vs. CA avg 3).↑ 933% worse
Moderate citations (Type B) Violations that do not pose an immediate risk but still represent a departure from required care or operational standards.	25	4	This facility has 525% more moderate citations (type b) than a typical California assisted living residence (25 vs. CA avg 4).↑ 525% worse
Citations per year Average citations per year since 2021.	11.2	2	This facility has 460% more citations per year than a typical California assisted living residence (11.2 vs. CA avg 2).↑ 460% worse
Citations per inspection Average citations per inspection.	0.7	3.3	This facility has 79% fewer citations per inspection than a typical California assisted living residence (0.7 vs. CA avg 3.3).↓ 79% better

Inspections & Visits State inspections evaluate whether the facility meets health and safety standards.	This Facility	CA Average	vs. CA Avg
Total visits Combined count of complaint visits, other regulatory visits, and official scheduled inspections.	85	16	This facility has 431% more total visits than a typical California assisted living residence (85 vs. CA avg 16).↑ 431% worse
Complaint visits On-site visits triggered by formal complaints filed by residents, families, or staff.	53	13	This facility has 308% more complaint visits than a typical California assisted living residence (53 vs. CA avg 13).↑ 308% worse
Other visits Regulatory visits that are neither routine inspections nor complaint investigations — administrative check-ins, follow-up reviews, licensing-related visits.	27	7	This facility has 286% more other visits than a typical California assisted living residence (27 vs. CA avg 7).↑ 286% worse
Official inspections Routine, scheduled inspections conducted by state regulators to evaluate whether the facility meets federal and state standards.	5	4	This facility has 25% more official inspections than a typical California assisted living residence (5 vs. CA avg 4).↑ 25% worse
Complaint investigations On-site investigations triggered by complaints filed with California regulators.	32	10	This facility has 220% more complaint investigations than a typical California assisted living residence (32 vs. CA avg 10).↑ 220% worse

Inspection Reports Summary An editor-reviewed summary of the themes and findings across this facility's recent inspection reports.

This facility’s inspection record is mixed, showing repeated issues with staffing, medication management, and timely response to resident needs, alongside some serious incidents including a resident death due to neglect. The most recent inspection on February 5, 2026, found no deficiencies related to a caregiver abuse allegation, but prior investigations substantiated multiple deficiencies such as failure to notify representatives of falls (December 18, 2025) and an immediate health risk from hot water temperatures (November 20, 2025). Several substantiated complaints over the years resulted in civil penalties totaling over $24,000 for neglect, inadequate staffing, and delayed medical care.

Read the full inspection reports for this facility, including detailed findings and corrective actions.

Show Inspection Reports

What does this home offer?

Pets Allowed

Housing Options: Studio / 1 Bed / 2 Bed

Building Type: 3-story

Transportation Services

Fitness and Recreation

Type of Rooms Available

1 / 4

1 Bed

Sage Mountain Senior Living Virtual Tour

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7.2 miles from city center Estimated distance in miles from Newbury Park's city center to Sage Mountain Senior Living's address, calculated via Google Maps. — 4 miles to nearest hospital (Los Robles Regional Medical Center)

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Financial Assistance for
Assisted Living in California

Sage Mountain Senior Living is located in Newbury Park, California.
Here are the financial assistance programs available to residents in California.

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Multipurpose Senior Services Program

MSSP (Medi-Cal Waiver)

Age 65+

General California resident, Medi-Cal eligible, nursing home risk.

Income Limits (2025) ~$2,829/month 300% FBR, individual

Asset Limits $2,000 (individual), $3,000 (couple).

County-managed; waitlists possible.

Benefits

In-home support (4-6 hours/day) Respite care (14 days/year) Meals (~$6/meal) Transportation (8 trips/month) Care management

In-Home Supportive Services (IHSS)

California IHSS

Age 65+

General California resident, Medicaid-eligible or low-income.

Income Limits ~$1,732/month individual, Medi-Cal threshold

Asset Limits $2,000 individual

Can hire family as caregivers.

Benefits

Personal care (up to 283 hours/month) Homemaker services Respite (varies)

Multipurpose Senior Services Program (MSSP)

CA MSSP

Age 65+

General California resident, Medi-Cal-eligible, nursing home-eligible but community-capable.

Income Limits ~$2,829/month 300% FBR, individual

Asset Limits $2,000 individual

Available in 38 counties; waitlists common.

Benefits

Case management Respite care (up to 10 days/year) Minor home mods (avg. $500) Adult day care (~$50/day)

Property Tax Postponement Program (PTP)

CA PTP

Age 62+

General California resident, own and live in home, 40% equity.

Income Limits (2025) ~$51,500/year household, adjusted annually

Asset Limits Equity-based; no strict asset cap.

Deferred taxes accrue interest (5% as of 2024); repaid upon sale/death.

Benefits

Property tax deferral (avg. $1,000-$3,000/year, varies by county)

Assisted Living Waiver (ALW)

CA ALW

Age 65+ or disabled

General California resident, Medi-Cal-eligible, nursing home-eligible.

Income Limits ~$2,829/month 300% FBR, individual

Asset Limits $2,000 individual

Available in 15 counties (e.g., LA, Sacramento); waitlists common.

Benefits

Personal care in ALFs (5-7 hours/day) Medication management Social services

California CARES Program

CA CARES

Age —

General Caregivers of California residents 60+ needing help with 3+ daily activities; no caregiver age limit.

Income Limits No strict limit; cost-sharing above ~$2,500/month threshold.

Asset Limits Not applicable; need-based.

High demand in urban areas; complements IHSS respite.

Benefits

Respite care (up to 10 days/year) Counseling (4-6 sessions/year) Training (2-3 workshops/year) Supplies (~$200/year)

Compare Assisted Living around Thousand Oaks

The information below is reported by the California Department of Social Services and Department of Public Health.

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Atria Hillcrest	AL Assisted Living A licensed, long-term care setting for seniors or individuals with disabilities who need help with daily activities — like bathing, dressing, and medication management — but not 24-hour skilled nursing. Offers housing, meals, and around-the-clock support while aiming to maximize resident independence. IL Independent Living Lifestyle-focused communities for older adults offering dining, activities, and transportation with minimal personal care. Best for active, independent seniors who want community without medical support. MC Memory Care Secured, specialized care for people living with Alzheimer's or dementia. Staff trained in cognitive impairment, with higher staff-to-resident ratios and an environment designed to reduce confusion and wandering risk.	Thousand Oaks (Greenwich Village)	207	Yes	72	6	19 Facility 19 CA AVG 11.6 Rank #1111 / 1397	2 Facility 2 CA AVG 3.2 Rank #600 / 1164	28 Facility 28 CA AVG 11 Rank #99 / 1365	67.1% Facility 67.1% CA AVG 73.6% Rank #857 / 1289	A+	Wg Hillcrest Inn Sh LP; Atria Management Co LLC	Studio / 1 Bed / 2 Bed
Belmont Village Senior Living Thousand Oaks	AL Assisted Living A licensed, long-term care setting for seniors or individuals with disabilities who need help with daily activities — like bathing, dressing, and medication management — but not 24-hour skilled nursing. Offers housing, meals, and around-the-clock support while aiming to maximize resident independence. MC Memory Care Secured, specialized care for people living with Alzheimer's or dementia. Staff trained in cognitive impairment, with higher staff-to-resident ratios and an environment designed to reduce confusion and wandering risk.	Thousand Oaks (North Moorpark Road)	158	Yes	21	4	13 Facility 13 CA AVG 11.6 Rank #953 / 1397	8 Facility 8 CA AVG 3.2 Rank #1015 / 1164	8 Facility 8 CA AVG 11 Rank #610 / 1365	72.2% Facility 72.2% CA AVG 73.6% Rank #751 / 1289	A+	Bmsh I Belmont To Gp LLC; Belmont Three LLC	Studio / 1 Bed / 2 Bed
Sage Mountain Senior Living	AL Assisted Living A licensed, long-term care setting for seniors or individuals with disabilities who need help with daily activities — like bathing, dressing, and medication management — but not 24-hour skilled nursing. Offers housing, meals, and around-the-clock support while aiming to maximize resident independence. MC Memory Care Secured, specialized care for people living with Alzheimer's or dementia. Staff trained in cognitive impairment, with higher staff-to-resident ratios and an environment designed to reduce confusion and wandering risk. RC Respite Care Short-term temporary care — days to weeks — to give family caregivers a break. Full care provided during the stay. Often used after hospitalization or to trial a facility before a permanent placement decision.	Newbury Park	145	Yes	14	5	53 Facility 53 CA AVG 11.6 Rank #1360 / 1397	31 Facility 31 CA AVG 3.2 Rank #1160 / 1164	7 Facility 7 CA AVG 11 Rank #669 / 1365	70.3% Facility 70.3% CA AVG 73.6% Rank #794 / 1289	A+	Sage Mountain Sr. Housing Partners; Agemark Mgmt	Studio / 1 Bed / 2 Bed
Hillcrest Royale	AL Assisted Living A licensed, long-term care setting for seniors or individuals with disabilities who need help with daily activities — like bathing, dressing, and medication management — but not 24-hour skilled nursing. Offers housing, meals, and around-the-clock support while aiming to maximize resident independence.	Thousand Oaks	145	No	79	4	3 Facility 3 CA AVG 11.6 Rank #440 / 1397	9 Facility 9 CA AVG 3.2 Rank #1033 / 1164	23 Facility 23 CA AVG 11 Rank #202 / 1365	62.8% Facility 62.8% CA AVG 73.6% Rank #994 / 1289	A+	The Retirement Home, Inc.	Studio / 1 Bed / 2 Bed
Sunrise of Westlake Village	AL Assisted Living A licensed, long-term care setting for seniors or individuals with disabilities who need help with daily activities — like bathing, dressing, and medication management — but not 24-hour skilled nursing. Offers housing, meals, and around-the-clock support while aiming to maximize resident independence. MC Memory Care Secured, specialized care for people living with Alzheimer's or dementia. Staff trained in cognitive impairment, with higher staff-to-resident ratios and an environment designed to reduce confusion and wandering risk.	Thousand Oaks	124	Yes	74	4	3 Facility 3 CA AVG 11.6 Rank #440 / 1397	1 Facility 1 CA AVG 3.2 Rank #413 / 1164	21 Facility 21 CA AVG 11 Rank #240 / 1365	70.2% Facility 70.2% CA AVG 73.6% Rank #796 / 1289	A+	Szr Westlake Village; Sunrise Senior Living Mgt	Studio / 1 Bed / 2 Bed

View all Nearby Homes

What neighborhood is Sage Mountain Senior Living in?

Sage Mountain Senior Living is in the Newbury Park neighborhood of Newbury Park.

Who is the owner of Sage Mountain Senior Living?

The legal owner and operator of Sage Mountain Senior Living is Sage Mountain Sr. Housing Partners; Agemark Mgmt.

Is Sage Mountain Senior Living in a walkable area?

Sage Mountain Senior Living has a walk score of 14. Car-dependent. Most errands require a car, with limited nearby walkable options.

What is the occupancy rate at Sage Mountain Senior Living?

Sage Mountain Senior Living's occupancy is 70%.

Who is the administrator of Sage Mountain Senior Living?

Christian Castillo is the administrator of Sage Mountain Senior Living.

How many beds does Sage Mountain Senior Living have?

Sage Mountain Senior Living has 145 beds.

Has Sage Mountain Senior Living had any recent deficiencies or citations?

Sage Mountain Senior Living has had 56 recently reported deficiencies.

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