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Department of
SOCIAL SERVICES

Community Care Licensing


COMPLAINT INVESTIGATION REPORT

Facility Number: 198603679
Report Date: 03/24/2026
Date Signed: 03/24/2026 01:59:05 PM

Unsubstantiated


STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY

COMPLAINT INVESTIGATION REPORT
CALIFORNIA DEPARTMENT OF SOCIAL SERVICES
COMMUNITY CARE LICENSING DIVISION
MONTEREY PARK ASC, 1000 CORPORATE CNTR DR. ST 500
MONTEREY PARK, CA 91754
This is an official report of an unannounced visit/investigation of a complaint received in our office on
03/20/2026 and conducted by Evaluator Blanca Gonzalez
COMPLAINT CONTROL NUMBER: 28-AS-20260320093513
FACILITY NAME:MAINSTREAM CENTERS, INCFACILITY NUMBER:
198603679
ADMINISTRATOR:SOMMERS, TIAFACILITY TYPE:
775
ADDRESS:345 E ROWLAND STREETTELEPHONE:
(626) 335-8110
CITY:COVINASTATE: CAZIP CODE:
91723
CAPACITY:120CENSUS: 100DATE:
03/24/2026
UNANNOUNCEDTIME BEGAN:
10:00 AM
MET WITH:Nubia Hall, Case ManagerTIME COMPLETED:
02:15 PM
ALLEGATION(S):
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Staff hit a client resulting in injury
INVESTIGATION FINDINGS:
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Licensing Program Analyst (LPA) Blanca Gonzalez conducted an unannounced initial 10-day complaint investigation visit regarding the above allegation. LPA Gonzalez was greeted by staff, and the purpose of the visit was explained.

The investigation consisted of the following: LPA Gonzalez requested and obtained copies of staff roster and client roster. LPA obtained the following files for C1: behavior analysis, IPP and observation notes. LPA reviewed video camera footage from 03/17/26, interviewed staff #1-5 (S1- S5) and interviewed clients #1-6 (C1-C6).

continued on LIC9099C
Unsubstantiated
Estimated Days of Completion:
SUPERVISORS NAME: Wei Siew Ho
LICENSING EVALUATOR NAME: Blanca Gonzalez
LICENSING EVALUATOR SIGNATURE:

DATE: 03/24/2026
I acknowledge receipt of this form and understand my licensing appeal rights as explained and received.
FACILITY REPRESENTATIVE SIGNATURE:

DATE: 03/24/2026
This report must be available at Child Care and Group Home facilities for public review for 3 years.
LIC9099 (FAS) - (06/04)
Page: 1 of 2
Control Number 28-AS-20260320093513
STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY

COMPLAINT INVESTIGATION REPORT (Cont)
CALIFORNIA DEPARTMENT OF SOCIAL SERVICES
COMMUNITY CARE LICENSING DIVISION
MONTEREY PARK ASC, 1000 CORPORATE CNTR DR. ST 500
MONTEREY PARK, CA 91754
FACILITY NAME: MAINSTREAM CENTERS, INC
FACILITY NUMBER: 198603679
VISIT DATE: 03/24/2026
NARRATIVE
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The investigation revealed the following: Regarding allegation "Staff hit a client resulting in injury," it was reported that on 03/17/26 staff hit C1 resulting in an injury on their leg. LPA interviewed six (6) clients. Five (5) out of six (6) clients denied the allegation stating no staff had hit any client nor had they heard any client say staff hit them. LPA attempted to interview C1, C1 refused to answer LPA's questions. Five (5) out of five (5) staff interviewed all denied the allegation. Four (4) out of five (5) staff deny putting their hands on C1. Staff stated that no staff had hit any client in the facility nor had they heard of any staff hitting a client on the day of the incident. LPA viewed video camera footage for 03/17/26, footage corroborates staff statements of not putting hands on C1. LPA observed from camera footage that C1 ran into the hallway from outside, running into S3. C1 set themselves on the floor and crawled away from staff, crawling under a break room table. S1, S3, and S5 attempted to de-escalate C1. From camera footage, LPA did not observe staff hit C1.

Based on interviews, although the allegation may have happened or is valid, there is no preponderance of evidence to prove the alleged violations did or did not occur, therefore the allegation is unsubstantiated.

An exit interview was conducted, and a copy of this report was provided to Nubia Hall Case Manager.
SUPERVISORS NAME: Wei Siew Ho
LICENSING EVALUATOR NAME: Blanca Gonzalez
LICENSING EVALUATOR SIGNATURE:

DATE: 03/24/2026
I acknowledge receipt of this form and understand my licensing appeal rights as explained and received.
FACILITY REPRESENTATIVE SIGNATURE:

DATE: 03/24/2026
LIC9099 (FAS) - (06/04)
Page: 2 of 2