MedMark Treatment Centers Hayward provides outpatient substance abuse treatment specializing in the treatment of opioid dependency. We are committed to providing caring and confidential services to help patients lead a more productive and healthy lifestyle. Medication-assisted treatment and counseling services are provided to individuals who are addicted to opioids such as OxyContin, Hydrocodone, Vicodin, Heroin, Morphine or Opium.

Our treatment program provides the following services: 

  • Methadone Maintenance
  • Methadone Detoxification
  • Individual Counseling
  • Pregnancy Treatment Program
  • Case Management Services
  • NA Meeting (Closed)
  • Patient Advisory Group
  • Referrals & Resources Available
About Us:

Our treatment team of professionals are committed to working with each individual to create a treatment plan based on their specific needs in a supportive environment.


“MedMark Hayward’s treatment center is confidential and discreet. The staff do a good job making you feel welcome.”

5/ 5stars
MedMark Treatment Centers

“The staff at MedMark Treatment Centers Hayward help you become independent of opiate addiction.”

5/ 5stars
MedMark Treatment Centers

“This clinic (MedMark Treatment Centers Hayward) is a lifesaving place for me. Thank you.”

5/ 5stars
MedMark Treatment Centers
Contact Information:
795 Fletcher Lane
Hayward, CA 94544

Phone: 510.247.8300
Fax:      510.247.8295

MedMark Treatment Centers
Hours of Operation:
Treatment Center Hours:

M – F: 5:00 am – 1:30 pm
Sat & Sun: 8:00 am – 10:30 am
Holidays: 8:00 am – 10:30 am

Medication Hours:

M – F: 5:00 am – 1:00 pm
Sat & Sun: 8:00 am – 10:30 am
Holidays: 8:00 am – 10:30 am

Payment Types:
  • Drug Medi-Cal
  • Kaiser
  • Optum (United Healthcare)
  • Veteran’s Affair (VA)

MedMark Treatment Centers Hayward is accredited by CARF.