- Addiction Recovery Services(631) 920‑8300Substance use · Mental health · Smithtown · 11 Route 111, 1st Floor · Spanish
- Association for MH and Wellness Inc(631) 471‑7242Mental health · Riverhead · 1380 Roanoke Avenue · Spanish
- Association for MH and Wellness Inc(631) 471‑7242Mental health · Ronkonkoma · 939 Johnson Avenue · Spanish
- Catholic Charities of Long Island(631) 723‑3362Substance use · Hampton Bays · 31 East Montauk Highway · Spanish
- Charles K Post Addiction Treatment Center(631) 434‑7554Substance use · Mental health · Brentwood · 998 Crooked Hill Road, Building 1, PPC Campus
- Community Counseling Services of(631) 471‑3122Substance use · Mental health · Ronkonkoma · 3281 Veterans Memorial Highway, Suite E-14
- County of Suffolk(631) 853‑7373Opioid treatment program · Hauppauge · Suffolk County Department of Health Services
- County of Suffolk(631) 853‑6410Opioid treatment program · Smithtown · Suffolk County Department of Health Services, William J Lindsay Complex Bldg 151
- CS Medical Associates, P.C.(631) 696‑4357Opioid treatment program · Farmingville · 100 Granny Rd
- CS Medical Associates, P.C.(631) 696‑4357Opioid treatment program · Shirley · 2 Coraci Blvd
- East Hampton Outpatient Services(631) 329‑0373Substance use · Mental health · East Hampton · 287 Springs Fireplace Road · Spanish
- East Hampton Residential Program RR(631) 537‑2891 ext. 5795Substance use · East Hampton · 287 Springs Fireplace Rd
- Employee Assistance Resource Services Inc(631) 361‑6960Substance use · Mental health · Detox · Smithtown · 278 East Main Street
- Family Recovery Center(631) 924‑3741Substance use · Mental health · Mastic · 1235 Montauk Highway
- Family Res and Esst Enterprises(631) 868‑1244Substance use · Mental health · Oakdale · 405 Locust Avenue
- Family Residences/Essential Enterprise(631) 868‑1244Substance use · Mental health · Oakdale · 405 Locust Avenue
- Family Service League(631) 427‑4001Mental health · Huntington
- Family Service League(631) 369‑0104Substance use · Mental health · Riverhead · 400 West Main Street · Spanish
- Family Service League Inc(631) 663‑4350Substance use · Mental health · Bay Shore
- Family Service League Inc(631) 309‑6900Substance use · Mental health · Bay Shore · 1448 5th Avenue · Spanish
- Family Service League Inc(631) 663‑4300Substance use · Mental health · Central Islip · 320 Carleton Avenue · Spanish
- Family Service League Inc(631) 396‑2300Mental health · Huntington · Spanish
- Family Services League of Suffolk County(631) 309‑6831Substance use · Bay Shore · 1448 5th Avenue · Spanish
- Fed of Org for the NYS Men Disab Inc(631) 321‑8229 ext. 1267Substance use · Mental health · West Babylon · 11 Farmingdale Road
- Huntington Hospital(631) 351‑2200Substance use · Mental health · Huntington · 270 Park Avenue
- Huntington Youth Bureau(631) 271‑3591Substance use · Huntington · 423 Park Avenue · Spanish
- Long Island Center for Recovery Inc(631) 728‑3100Substance use · Detox · Hampton Bays · 320 West Montauk Highway
- Mather Hospital at Northwell(631) 331‑8200Substance use · Mental health · Port Jefferson · 100 Highlands Boulevard, Suite 101
- Mindful Care(516) 505‑7200Substance use · Mental health · Hauppauge · 150 Motor Parkway, Suite 401
- Monte Nido Clementine(631) 540‑0980Mental health · Northport
- Morning Star I(631) 213‑0203Substance use · Huntington Station · 151 Burrs Lane
- Morning Star II(631) 213‑0322Substance use · Huntington Station · 151 Burrs Lane
- Mountainside Huntington(631) 760‑1889Substance use · Huntington · 141 East Main Street, Floor 2
- New Horizon Counseling Center(631) 257‑5173Substance use · Mental health · Copiague · 445 Oak Street, 1st Floor · Spanish
- New Horizon Counseling Center(631) 656‑9550Substance use · Mental health · Smithtown · 1056 West Jericho Turnpike · Spanish
- Northport VAMC(631) 261‑4400Substance use · Mental health · Northport · 79 Middleville Road, 116A, Building 6, Room 106-R
- NYS OASAS Charles K Post ATC RRi(631) 434‑7554Substance use · Mental health · Brentwood · 998 Crooked Hill Road, PPC, Building 1, 1N Floor
- OnTrack(631) 608‑5531Mental health · Amityville · 400 Sunrise Highway · Spanish
- Outreach Development Corporation(631) 521‑8400Substance use · Brentwood · 998 Crooked Hill Road, Building 5, 1st and 2nd Floors · Spanish
- Outreach Development Corporation(631) 231‑3232Substance use · Mental health · Brentwood · 400 Crooked Hill Road · Spanish
- Outreach Development Corporation(631) 436‑6065Substance use · Brentwood · 452 Suffolk Avenue · Spanish
- Outreach Development Corporation RR(631) 521‑8400 ext. 5102Substance use · Brentwood · 998 Crooked Hill Road, 1st and 2nd Floors, Building 5
- Outreach Recovery Res for Women(631) 469‑6200Substance use · Mental health · Brentwood · 400 Crooked Hill Road, Building 4 · Spanish
- Phoenix House(631) 471‑5666 ext. 5481Substance use · Mental health · Ronkonkoma · 153 Lake Shore Road
- Phoenix House Brentwood(917) 596‑8041Mental health · Brentwood · 998 Crooked Hill Road, Building 5
- Phoenix Houses of Long Island PROS(631) 865‑5493Substance use · Mental health · Brentwood · 998 Crooked Hill Road, Pilgrim State PC, Building 5
- Pilgrim Psychiatric Center(631) 761‑3500Mental health · Brentwood · Spanish
- Pilgrim Psychiatric Center(631) 761‑2177Substance use · Mental health · Brentwood · 998 Crooked Hill Road, Building 56 · Spanish
- Pilgrim Psychiatric Center(613) 924‑4411 ext. 6223Substance use · Mental health · Medford · 31 Industrial Boulevard
- Pilgrim Psychiatric Center(631) 475‑7108Substance use · Mental health · Patchogue · 116 Waverly Avenue · Spanish
- Pilgrim Psychiatric Center(631) 369‑1277Mental health · Riverhead · 550 East Main Street, Suite 103
- Risewell Community Services(631) 552‑4240 ext. 1276Substance use · Mental health · Copiague · 1375 Akron Street
- RiseWell Community Services(631) 447‑6460 ext. 2102Substance use · Mental health · Patchogue · 456 Waverly Avenue
- RiseWell Community Services Inc(631) 782‑6200Substance use · Mental health · Wyandanch · 240-A Long Island Avenue · Spanish
- Sagamore Childrens Psychiatric Center(631) 654‑2077Mental health · Patchogue · 440-14 Waverly Avenue
- Saint Catherine of Siena MC(631) 727‑4044Mental health · Riverhead
- Saint Charles Hospital(631) 474‑6981Substance use · Detox · Port Jefferson · 200 Belle Terre Road, 2nd Floor, 2 North
- Samaritan Daytop Village Inc(631) 351‑7112 ext. 5070Substance use · Mental health · Huntington Station · 2075 New York Avenue · Spanish
- Samaritan Daytop Village Suffolk Outpatient(631) 351‑7113Opioid treatment program · Huntington · 2075 New York Avenue
- SCO Family of Services(631) 213‑0150Mental health · Huntington Station · 151 Burrs Lane · Spanish
- Seafield Center Inc(631) 288‑1122Substance use · Detox · Westhampton Beach · 7 Seafield Lane · Spanish
- Seafield Services Inc(631) 451‑6007Substance use · Medford · 3251 Route 112, Building 9, Suite 2
- Seafield Services Inc(631) 363‑2001Substance use · Patchogue · 475 East Main Street, 1st Floor, Suite 101
- Seafield Services Inc(631) 288‑1122Substance use · Riverhead · 240 West Main Street · Spanish
- South Oaks Child/Adol Oupt Services(631) 608‑5900Substance use · Mental health · Amityville · 400 Sunrise Highway, Admin Bldg, 2nd Floor
- South Oaks Hospital(631) 264‑4000Substance use · Detox · Amityville · 400 Sunrise Highway, Jennings Hall, 2nd Floor
- Stony Brook Eastern Long Island Hospital(631) 477‑5710Substance use · Mental health · Detox · Greenport · 201 Manor Place
- Suffolk County Community Mental Hygiene(631) 854‑2552Mental health · Farmingville · 15 Horseblock Place · Spanish
- Suffolk County Department of Health Service(631) 853‑7373Substance use · Hauppauge · 200 Wireless Boulevard · Spanish
- Suffolk County Department of Health Services(631) 852‑2680Substance use · Riverhead · 300 Center Drive, Suite 236 South
- Suffolk County Department of Health Services(631) 853‑6410Substance use · Smithtown · William J Lindsay Complex, Bldg 151, 725 Veterans Memorial Highway · Spanish
- Suffolk County Department of Health Services, Division of Community Mental Hygiene East End Clinic(631) 852‑2680Opioid treatment program · Riverhead · 300 Center Dr.
- Sun River Health Inc(844) 400‑1975Substance use · Mental health · Shirley · 550 Montauk Highway · Spanish
- Talbot House(631) 589‑4144Substance use · Detox · Bohemia · 30 Carlough Road, Suite C
- The Long Island Home(631) 264‑4000 ext. 4100Opioid treatment program · Amityville · 400 Sunrise Hwy.
- Town of Babylon(631) 422‑7676Substance use · North Babylon · 281 Phelps Lane · Spanish
- Town of Smithtown(631) 360‑7578Substance use · Smithtown · 161 East Main Street
- University Hospital/Stony Brook ELIH(631) 369‑8966Substance use · Mental health · Riverhead · 905 East Main Street · Spanish
- Victory Recovery Partners(631) 696‑4357Substance use · Farmingville · 100 Granny Road, Suites 1-4 · Spanish
- Victory Recovery Partners(631) 696‑4357Substance use · Shirley · 2 Coraci Boulevard, 1st Floor, Suites 15-18 · Spanish
- Wellbridge Rehabilitation Program(631) 508‑5400Substance use · Calverton · 525 Jan Way
- Wellbridge Stabilization Program(631) 508‑5400Substance use · Detox · Calverton · 525 Jan Way
- WellLife Network Inc(718) 559‑0516Substance use · Mental health · Coram · 3600 Route 112, 1st Floor
- WellLife Network Inc(631) 929‑8000Substance use · Mental health · Huntington · 55 Horizon Drive
- WellLife Network Inc(631) 920‑8300Substance use · Mental health · Smithtown · 11 Route 111
- WellLife Network Inc(631) 920‑8250Substance use · Mental health · Wyandanch · 234 Long Island Avenue
- West Islip Youth Enrichment Services(631) 231‑4333Substance use · Mental health · Islip · 401 Main Street, Suite 108 · Spanish
- West Islip Youth Enrichment Services Inc(631) 231‑4333Substance use · Mental health · Brentwood · 13 McWhorter Street · Spanish
- YMCA Family Services(631) 580‑7777 ext. 3100Substance use · Holtsville · 1150 Portion Road, Suite 6 · Spanish
Nearest emergency rooms
- St Catherine of Siena Hospital1.9 mi · Smithtown, NY
- Suny/Stony Brook University Hospital5.5 mi · Stony Brook, NY
- St Charles Hospital9.2 mi · Port Jefferson, NY
Cities in Suffolk County
Amityville (4)Bay Shore (3)BohemiaBrentwood (12)Calverton (2)Central IslipCopiague (2)CoramEast Hampton (2)Farmingville (3)GreenportHampton Bays (2)Hauppauge (3)HoltsvilleHuntington (7)Huntington Station (4)IslipMasticMedford (2)North BabylonNorthport (2)Oakdale (2)Patchogue (4)Port Jefferson (2)Riverhead (8)Ronkonkoma (3)Shirley (3)Smithtown (7)West BabylonWesthampton BeachWyandanch (2)
Common questions
How many addiction and mental health treatment centers are in Suffolk County, New York?
SAMHSA’s FindTreatment.gov directory lists 89 treatment centers in Suffolk County.
Which treatment centers in Suffolk County accept Medicaid?
77 of 89 name Medicaid among the payments they accept. Ask whether they take your plan.
Is there a treatment center with services in Spanish in Suffolk County?
Yes. 37 facilities list Spanish among their language services.
Where is the nearest emergency room to Suffolk County?
Hospitals that list emergency services in Medicare data, near Suffolk County: St Catherine of Siena Hospital, Smithtown (1.9 mi), Suny/Stony Brook University Hospital, Stony Brook (5.5 mi) and St Charles Hospital, Port Jefferson (9.2 mi). In an emergency, call 911.
Source: SAMHSA, FindTreatment.gov (National Directory of Mental Health and Substance Use Treatment Facilities), retrieved 2026-11-11. SAMHSA publishes no separate release date for this live directory. The directory has no quality ratings, and this list is not a ranking or a recommendation. Methodology