We have two branches at this location, Summit and Seneca. This is our primary Seattle location located in First Hill neighborhood.

Summit Branch

1116 Summit Avenue
Seattle, WA 98101
Phone: (206) 323-0930
Fax: (206) 323-0933

Seneca Branch

1300 Spring Street
Seattle, WA 98101
Phone: (206) 323-0930
Fax: (206) 323-0933

Summit/Seneca Branch Hours

Summit Branch Front Office Hours:
Monday – Thursday, 7:00 AM – 4:30 PM;
Friday 7:00AM – 4:30PM

Summit Branch Dispensary Hours:
Early Dosing:
Monday – Friday 6:00 AM – 6:30 AM
Saturday 7:00AM – 7:30AM

Regular Dosing:
Monday – Friday 6:30 AM – 11:30 AM
Saturday 7:30AM – 11:30AM

NOW ACCEPTING MAT (Methadone) WALK-INS

Summit Branch Walk-in Hours:

Monday, Tuesday, Wednesday: 7:00AM – 8AM

Please bring photo ID if you have it.

Services Provided At Our Summit/Seneca Branch

Learn More About Medication-Assisted Treatment at THS

Learn More About Drug & Alcohol Treatment Services at THS

  • Adult Mental Health Services
  • Counseling: Individual, Group & Family
  • African-American Ethnic Mental Health Specialty
  • Crisis Intervention
  • Medication Management
  • Mental Health Assessment
  • Mental Health Case Management
  • Mental Health Court Referrals
  • Psychiatric Evaluation

Learn More About Mental Health Recovery at THS

Small two story corporate office building where we also have our summit/seneca branch

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