Co-Occurring Disorders Treatment
Treatment for a mental health condition occurring alongside substance use, in La Mesa, CA. County-contracted specialty mental health plus DHCS-certified SUD care, coordinated. Call (858) 925-8589.
- One clinical team runs a single assessment and treatment plan for both conditions
- PHP here is specialty mental health only; substance use care runs under separate DHCS certification
- No requirement to get sober before a mental health condition is taken seriously
- Medication for opioid or alcohol use disorder is managed alongside psychiatric medication
- Step-down plan names warning signs for both depression return and return to use
- Every day, 8am – 8pm
- 100% confidential — HIPAA & 42 CFR Part 2
- Adults 18+ · dual-diagnosis welcome
Verify your insurance
Takes about 60 seconds. Our admissions team confirms your benefits and calls you back — usually within the hour.
A co-occurring disorder means a mental health condition and a substance use disorder are present at the same time. This page approaches that from the mental health side: you came in for depression, anxiety, bipolar disorder, or trauma, and substance use turned out to be part of the picture.
If you are arriving from the other direction — substance use first, with a mental health condition underneath — the same care is described from that angle on our dual diagnosis treatment page. Both pages describe the same coordinated care; they differ only in where you started.
How the two tracks fit together
Golden Coast Rehab is a contracted provider of Specialty Mental Health Services (Partial Hospitalization Program and Intensive Outpatient Program) for the County of San Diego, Behavioral Health Services, under County Contract 575462.
Golden Coast Rehab holds DHCS substance use disorder certification 370254AP for outpatient detoxification, outpatient, intensive outpatient, and medication-assisted treatment.
One boundary matters here, and we state it plainly. Our Partial Hospitalization Program is a specialty mental health service only, delivered under our County of San Diego contract — there is no substance use PHP at Golden Coast Rehab. Substance use care is provided at the outpatient detox, outpatient, intensive outpatient, and medication-assisted treatment levels under our DHCS certification. The two tracks are coordinated by one clinical team, but they are separately authorized and we do not blur them.
Why treating one and referring out the other tends to fail
The two conditions interact. Drinking to quiet anxiety works for an evening and raises anxiety for the following two days. Depression lowers the resources you need to stop using; withdrawal deepens depression. Treat either one in isolation and the untreated condition keeps pulling the other back down, which is why people cycle through programs and conclude that treatment does not work for them.
Integrated care means one clinical team holds both pictures at once — one assessment, one treatment plan, medication decisions that account for both, and no requirement to get sober before your mental health condition is taken seriously.
Ready to take the first step?
Speak with our admissions team — free, confidential, and no obligation.
What treatment looks like
Assessment
One evaluation covering psychiatric symptoms, substance use, medical history, medication, and safety. We do not try to settle which condition came first before starting treatment — that question is often unanswerable and rarely changes what needs to happen next. Symptoms are tracked with standardized measures, including the PHQ-9 and the GAD-7 where clinically indicated, completed at intake and repeated during treatment so that change is measured rather than assumed.
Stabilization
If withdrawal management is needed, that comes first, through our outpatient detox under DHCS certification 370254AP. Alongside it, sleep, routine, and psychiatric stabilization. When housing is part of the instability, addiction and mental health housing options are part of the plan.
Active treatment
Mental health programming at the PHP or IOP level under the County contract, coordinated with substance use programming at the outpatient, intensive outpatient, or medication-assisted treatment level. Where medication for opioid or alcohol use disorder is indicated, it is managed alongside psychiatric medication rather than in a separate silo.
Step-down
Care steps down as stability holds, with a plan that names both sets of warning signs — because a return of depression and a return to using are each capable of setting off the other.
Mental health conditions we treat
Substances we treat
Call (858) 925-8589 to talk through which starting point fits. Our line is answered 24 hours a day.
Explore Related Care
Not sure this is the right fit?
Levels of care step up and down around your progress — start where you are, and we'll adjust together.
Partial Hospitalization Program (PHP)
Our most structured outpatient level of care, offered as a specialty mental health service.
Learn moreIntensive Outpatient Program (IOP)
Evidence-based group and individual therapy with the flexibility to keep working, studying, and living at home.
Learn moreMedication-Assisted Treatment (MAT)
FDA-approved medication for opioid and alcohol use disorder, managed by our medical team.
Learn moreDual Diagnosis Treatment
Integrated care for substance use and co-occurring mental health conditions — treated together, not separately.
Learn moreVerify Your Insurance
Check your coverage in minutes — free, confidential, and with no obligation to enroll.
Learn moreAdmissions Process
See exactly what happens from your first call to your start date, step by step.
Learn moreServing members of every San Diego Medi-Cal plan
Credentialed through Optum, administrator of behavioral health services for the County of San Diego.
County of San Diego Behavioral Health ServicesContracted provider of Specialty Mental Health Services under County Contract 575462.Not sure if you're covered? Verify your benefits in minutes — free & confidential.
Admissions
The Admissions Process
Starting treatment at Golden Coast Rehab is simple. Here's exactly what happens from your first call.
Call or Reach Out
Speak with a caring admissions specialist — no pressure, completely confidential.
Verify Your Coverage
We confirm what your plan covers — Medi-Cal welcome — usually the same day.
Phone Assessment
A 10–15 minute ASAM-based assessment helps us understand your history and recommend the right level of care.
Clinical Review & Intake
Our team reviews your assessment, builds an individualized plan, and schedules your start date.
Questions, Answered
Frequently asked questions
Do I have to be sober before you will treat my mental health condition?
Is there a PHP for substance use?
How is this page different from your dual diagnosis page?
Which condition gets treated first?
Does Medi-Cal cover co-occurring treatment?
How common is it to have both a mental health condition and a substance use disorder?
What counts as a co-occurring disorder?
Do you treat both conditions in the same sessions, or separately?
What if my substance use is more of a concern than my mental health right now?
Can I start treatment if I'm not ready to fully stop using?
How do you decide which level of care fits a co-occurring presentation?
What if I've only ever been treated for one of the two conditions before?
Sources
- San Diego County HHSA — 60% of adult/older-adult behavioral health clients had a co-occurring mental illness and substance use disorder in FY 2020-21, up from 54% in FY 2016-17https://www.sandiegocounty.gov/content/dam/sdc/hhsa/programs/bhs/TRL/AOA%20Annual%20System%20of%20Care%20Report%20FY%2020-21.pdf
- SAMHSA 2022 NSDUH — 48.8% of young adults (18-25) had either a mental illness or substance use disorder in the past yearhttps://www.samhsa.gov/data/sites/default/files/reports/rpt42731/2022-nsduh-annual-national-web-110923/2022-nsduh-nnr.htm
Chat with us.
We're here to help you or your loved one on their path to sobriety — free, confidential.
Structure, support, and a team that knows your name — starting this week.
Five minutes. One real person on the other end — day or night. No pressure, no obligation, just honest answers about what comes next.
Every day, 8am – 8pm · Free & confidential · HIPAA & 42 CFR Part 2 protected

