Mental Health Programs in Orange County
Find Your Still Water
Stillwater Behavioral Health offers three levels of outpatient mental health care, all from our Costa Mesa location, serving clients throughout Orange County. Rather than locking you into a single track, we build a plan around your clinical needs — and adjust it as those needs change.
Finding the Right Level of Care
Not everyone needs the same intensity of treatment. Some need daily structure to stabilize. Others need a program that flexes around a job or school schedule. Some are stepping down from a higher level of care and just need consistent support to maintain progress. The chart below is a starting point — your actual recommendation comes from a clinical assessment during intake.
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Compare Our Programs
PHP
Time commitment
- Daily, multi-hour sessions
Best for
- Higher acuity, need for daily structure
Typical use case
- Stepping down from inpatient, or stabilizing before IOP
IOP
Time commitment
- Several days/week
Best for
- Moderate acuity, need flexibility with work/school
Typical use case
- Managing symptoms while maintaining daily responsibilities
Outpatient
Time commitment
- Weekly or biweekly sessions
Best for
- Step-down care or lower acuity, standalone support
Typical use case
- Maintenance, relapse prevention, ongoing support

Partial Hospitalization Program (PHP)
Our most intensive outpatient option. PHP provides structured, multi-hour daily programming for clients who need more support than weekly therapy but don't require inpatient hospitalization. It's often the right fit if you're stepping down from inpatient care, or if your symptoms have stopped responding to less intensive treatment — for when the turbulence is loudest and daily structure matters most.

Intensive Outpatient Program (IOP)
IOP meets several days a week for a few hours per session, giving clients meaningful clinical support while still working, attending school, or managing family responsibilities. It's a strong fit for clients stepping down from PHP, or anyone who needs more structure than weekly therapy but doesn't require daily programming.

Outpatient Program
Ongoing individual and group therapy — ideal as a step-down after PHP or IOP, or as a standalone option for clients with lower-acuity needs. It's built for maintenance and relapse prevention: enough support to keep your footing, without the time commitment of a more intensive program.
Why Choose Stillwater Behavioral Health
- One provider, every level of care — Move between PHP, IOP, and outpatient as your needs change, without switching clinicians or starting over with a new team.
- A plan built around you — Treatment is reassessed regularly and adjusted to your progress, not locked into a fixed-length track.
- Evidence-based therapies — CBT, DBT, and EMDR, matched to your diagnosis and goals.
- A clear path forward — Every level of care includes a collaborative plan for what comes next, so you always know where you're headed.
Frequently Asked Questions
How do I know which program is right for me?
Our clinical team completes a brief assessment during your first call to recommend the right level of care based on your symptoms, history, and daily functioning.
Can I move between programs?
Yes. Many clients step down from PHP to IOP to outpatient as they stabilize, all without switching providers.