RCFEIntel
Sign inFor FamiliesFor Vendors

California Licensed RCFE

Sage Mountain Senior Living

3499 Grande Vista Dr, Thousand Oaks, CA 91320 · Ventura County

State Facility #565802462

License Status
Licensed
Capacity
145
First Licensed
11/8/2018
Last State Visit
6/24/2026

Choosing a facility for a loved one? Get free, no-obligation help from a local senior-living advisor.

Get free help choosing

Contact & Leadership

Administrator
Christian Castillo
Licensee
Sage Mountain Sr. Housing Partners; Agemark Mgmt
Phone
(805) 375-0695

Compliance Summary

Cumulative totals across this facility's entire California licensing history (first licensed 11/8/2018), per CCLD public records. “Substantiated Allegations” reflects the State of California's own findings, not RCFEIntel's. These are historical counts and do not indicate current conditions or quality of care.

Total State Visits
82
Inspections
5
Complaints on Record
29
Substantiated Allegations
26

Complaint Records (32)

Individual complaint records as published by the state and collected by our daily monitoring. The state occasionally revises or removes records; the Compliance Summary above reflects the state's current authoritative totals. Historical records, not an assessment of current conditions.

#29-AS-2025121715334501/29/20261 substantiated · 0 unsubstantiated · 0 unfoundedcitations: 0A / 1B
#29-AS-2024121209001310/31/20251 substantiated · 2 unsubstantiated · 0 unfoundedcitations: 1A / 0B
#29-AS-2025051612243805/30/20250 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2023103012044001/01/20252 substantiated · 1 unsubstantiated · 0 unfoundedcitations: 1A / 1B
#29-AS-2023091215161101/01/20252 substantiated · 1 unsubstantiated · 0 unfoundedcitations: 0A / 1B
Show all 32 complaint records
#29-AS-2024091810335011/28/20240 substantiated · 3 unsubstantiated · 0 unfounded
#29-AS-2024100314243110/29/20240 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2023061920303406/28/20247 substantiated · 3 unsubstantiated · 0 unfoundedcitations: 3A / 4B
#29-AS-2023072116342705/31/20242 substantiated · 3 unsubstantiated · 0 unfoundedcitations: 0A / 2B
#29-AS-2022032111452903/26/20242 substantiated · 1 unsubstantiated · 0 unfoundedcitations: 0A / 3B
#29-AS-2023012512575102/27/20241 substantiated · 1 unsubstantiated · 0 unfoundedcitations: 1A / 0B
#29-AS-2023062612233907/31/20230 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2022032210453307/26/20230 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2021082610470807/21/20230 substantiated · 2 unsubstantiated · 0 unfounded
#29-AS-2021072115132907/21/20230 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2021072015160106/27/20230 substantiated · 2 unsubstantiated · 0 unfounded
#29-AS-2021061814065306/27/20231 substantiated · 5 unsubstantiated · 0 unfoundedcitations: 1A / 0B
#29-AS-2021061013120506/27/20233 substantiated · 2 unsubstantiated · 0 unfoundedcitations: 2A / 0B
#29-AS-2023040508263104/28/20231 substantiated · 4 unsubstantiated · 0 unfoundedcitations: 1A / 0B
#29-AS-2021082410075104/28/20230 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2023011711102402/27/20231 substantiated · 1 unsubstantiated · 0 unfoundedcitations: 1A / 0B
#29-AS-2020071012594701/30/20230 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2021012814033612/28/20220 substantiated · 6 unsubstantiated · 0 unfounded
#29-AS-2021011214070512/28/20220 substantiated · 2 unsubstantiated · 0 unfounded
#29-AS-2020062414551411/29/20225 substantiated · 0 unsubstantiated · 0 unfoundedcitations: 5A / 0B
#29-AS-2021021917153009/20/20220 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2021012614044309/20/20220 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2020121511403909/20/20220 substantiated · 1 unsubstantiated · 0 unfounded
#29-AS-2022071816555308/29/20221 substantiated · 2 unsubstantiated · 0 unfoundedcitations: 1A / 0B
#29-AS-2021052409415105/26/20223 substantiated · 0 unsubstantiated · 0 unfoundedcitations: 0A / 1B
#29-AS-2020102613112204/15/20221 substantiated · 3 unsubstantiated · 0 unfoundedcitations: 1A / 0B
#29-AS-2021041314502909/27/20210 substantiated · 1 unsubstantiated · 0 unfounded

The record is free. Choosing is the hard part.

A local senior-living advisor can help you compare Sage Mountain Senior Living with nearby options, arrange tours, and understand real costs, at no charge to your family.

Get free help choosing a facility

Free to families. RCFEIntel may receive compensation from referral partners.

🔒 16 changes detected at this facility in the last 12 months, most recently on 2026-07-20. Vendors and agencies see every dated change here and across all 9,400+ California RCFEs.

For vendors →

Other RCFEs in Thousand Oaks

All 83 RCFEs in Thousand Oaks→

Comparing facilities in Thousand Oaks? Get free help from a local senior-living advisor.

Data source: California Department of Social Services, Community Care Licensing Division public records. Data as of 2026-07-21. RCFEIntel is not affiliated with or endorsed by the State of California.

This information is provided for research purposes only and may not reflect the facility's current status. Verify directly with CCLD before making care decisions. Corrections: ryan@rcfeintel.com