Exhibit 21.1

LIST OF SUBSIDIARIES

Subsidiary	Jurisdiction of Incorporation or Organization
Acadia Healthcare Company, Inc.
Acadia — YFCS Holdings, Inc.	Delaware
Youth & Family Centered Services, Inc.	Georgia
Acadia Management Company, Inc.	Delaware
Acadia Hospital of Lafayette, LLC	Delaware
Acadia Hospital of Longview, LLC	Delaware
Acadia Abilene, LLC	Delaware
Kids Behavioral Health of Montana, Inc.	Montana
Acadia Louisiana, LLC	Delaware
Acadia Riverwoods, LLC	Delaware
Acadia Village, LLC	Delaware
Lakeview Behavioral Health System, LLC	Delaware
Acadia Healthcare of Reading, LLC	Delaware
Suncoast Behavioral, LLC	Delaware
PHC, Inc.	Massachusetts
Youth & Family Centered Services
YFCS Management, Inc.	Georgia
YFCS Holdings — Georgia, Inc.	Georgia

Subsidiary	Jurisdiction of Incorporation or Organization
Options Community Based Services, Inc.	Indiana
Options Treatment Center Acquisition Corp.	Indiana
Resolute Acquisition Corporation	Indiana
Resource Community Based Services, Inc.	Indiana
RTC Resource Acquisition Corporation	Indiana
Success Acquisition Corporation	Indiana
Ascent Acquisition Corporation	Arkansas
Southwood Psychiatric Hospital, Inc.	Pennsylvania
Memorial Hospital Acquisition Corporation	New Mexico
Millcreek Management Corporation	Georgia
Rehabilitation Centers, Inc.	Mississippi
Lakeland Memorial Hospital Acquisition Corporation	Georgia
PsychSolutions Acquisition Corporation	Florida
YFCS Holdings — Georgia, Inc.
Youth & Family Centered Services of New Mexico, Inc	New Mexico
Southwestern Children’s Health Services, Inc. (Parc Place)	Arizona
Youth and Family Centered Services of Florida, Inc.	Florida
Ascent Acquisition Corporation
Pediatric Specialty Care, Inc.	Arkansas
Child & Youth Pediatric Day Clinics, Inc.	Arkansas
Med Properties, Inc.	Arkansas
Ascent Acquisition Corporation — PSC	Arkansas
Ascent Acquisition Corporation — CYPDC	Arkansas

Subsidiary	Jurisdiction of Incorporation or Organization
Meducare Transport, LLC	Arkansas
Pediatric Speciality Care Properties, LLC	Arkansas
Children’s Medical Transportation Services, LLC	Arkansas
Rehabilitation Centers, Inc.
Millcreek Schools, Inc.	Mississippi
Habilitation Center, Inc.	Arkansas
Millcreek School of Arkansas, Inc.	Arkansas
PsychSolutions Acquisition Corporation
PsychSolutions, Inc.	Florida
Kids Behavioral Health of Montana, Inc.
Kids Behavioral Health of Hawaii, LLC	Hawaii
PHC, Inc.
PHC of Michigan, Inc.	Massachusetts
PHC of Nevada, Inc.	Massachusetts
PHC of Utah, Inc.	Massachusetts
PHC of Virginia, Inc.	Massachusetts
Detroit Behavioral Institute, Inc.	Massachusetts
North Point — Pioneer, Inc.	Massachusetts
Wellplace, Inc.	Massachusetts
Seven Hills Hospital, Inc.	Delaware

Subsidiary	Jurisdiction of Incorporation or Organization
Renaissance Recovery, Inc.	Delaware
PHC Meadowwood, Inc.	Delaware