Medi-Cal Accepted · No Judgment
Inpatient alcohol detox at Horizon Treatment Services is a short residential stay where you stop drinking with trained staff watching over your safety throughout your stay. We run two Medi-Cal-accepting detox programs in the Bay Area: Cherry Hill in San Leandro (Alameda County) and Palm Avenue in San Mateo (San Mateo County).
When withdrawal is done, we help you move straight into the next level of care. There is no judgment here.
Clinically managed residential withdrawal management with regular safety checks, plus medication or medical referrals when needed.
Cherry Hill (San Leandro) and Palm Avenue (San Mateo), both licensed by the California Department of Health Care Services (DHCS).
Usually four to six days at Cherry Hill and five days or longer at Palm Avenue, based on your needs.
Medi-Cal accepted, and no-cost options may be available for eligible county residents.
Staff help connect you to residential, outpatient, or other treatment so your next step is already planned.
Detox at Horizon gives you a safe, structured place to get through withdrawal, not just a bed to sober up in. Care is led by trained staff under physician medical direction.
A safety and medical-necessity screening so we can plan the right care.
Staff monitor your safety and withdrawal symptoms throughout your stay. At Palm Avenue, licensed vocational nurses check your vital signs regularly.
At Palm Avenue, our Nurse Practitioner can provide medical clearance and prescribe withdrawal medications by telehealth, Monday through Friday, 1 to 5 p.m.
Extra support when you need it, including for co-occurring mental health needs.
Case management and a referral to the right level of care, so you leave with a next step.
Palm Avenue offers services in English and Spanish, with a language line for many other languages.
Palm Avenue serves adults of all genders, including trans and non-binary people.
Alcohol withdrawal can become a medical emergency. Horizon's detox programs are residential, not hospitals. At Palm Avenue, people withdrawing from alcohol need medical clearance from an emergency department before admission.
Go to an emergency room or call 911 if you have a seizure, confusion, hallucinations, chest pain, or very severe shaking or vomiting.
Emergency: call 911Call the program in your county. Both accept Medi-Cal and are licensed by DHCS.
Residential detox on the Fairmont Hospital grounds, alongside a sobering unit.
Residential, clinically managed withdrawal management for adults of all genders.
You, a family member, a provider, or a county case manager can call. Staff screen for safety and medical necessity to find the right placement.
Share every medication you take when you call. Staff will tell you what to bring and what to leave at home.
Staff monitor your safety and symptoms. At Palm Avenue, a Nurse Practitioner can prescribe withdrawal medication by telehealth if you meet medical necessity.
Before you leave, your team refers you to the right level of treatment, so follow-up is arranged, not guessed.
Medi-Cal accepted. No-cost options may be available for eligible residents. There is no judgment here.
Our detox programs accept Medi-Cal, and no-cost options may be available for eligible county residents.
What applies to you can depend on your county and coverage. The screening call is the fastest way to find out.
Medi-Cal is at the center of how we serve people, not an afterthought.
You, a family member, a health care provider, or a county case manager.
Horizon also runs sobering programs that are not detox: Mission Street Recovery Station in Santa Clara County (approved provider referrals only) and Gateway Medical Sobering Center in Albuquerque, New Mexico.
Detox treats withdrawal. Recovery usually needs more. Horizon offers a full continuum, so your care team can refer you within one organization when that's the right fit.
Both detox programs are licensed by the California Department of Health Care Services (DHCS): Cherry Hill #010001DN and Palm Avenue #410003AN.
We've been part of the Bay Area's recovery safety net since 1976, starting as Horizon House on an Alameda County contract.
Horizon holds a three-year accreditation from CARF (Commission on Accreditation of Rehabilitation Facilities).
Our detox programs operate under physician medical direction. At Palm Avenue, medical direction comes from John R. Knox, MD, an addiction psychiatrist.
Horizon opened the first sobering center in New Mexico, and a member of our clinical leadership co-founded the National Sobering Collaborative.
LGBTQ+ affirming and open to people regardless of race, gender, class, or sexual orientation. You are not alone.
Cherry Hill License #010001DN, Expires 1/31/2028 Palm Avenue License #410003AN, Expires 02/29/2028
SUD Recovery Treatment Facilities
Palm Avenue: Probationary License Status – DHCS
Yes. Both Cherry Hill and Palm Avenue accept Medi-Cal, and no-cost options may be available for eligible county residents. What applies to you depends on your county and coverage. Call the program in your county and staff will walk you through it during screening.
Most stays are short. Cherry Hill averages four to six days, and Palm Avenue stays are typically five days or longer, based on medical necessity. Your length of stay depends on how your withdrawal goes.
No. Horizon offers clinically managed residential detox. Trained staff check on you regularly under physician medical direction. At Palm Avenue, a Nurse Practitioner can prescribe withdrawal medication when medically necessary. If you need hospital-level care, go to an emergency room or call 911.
Start with a phone call. For Alameda County, call Cherry Hill at (866) 866-7496. For San Mateo County, call Palm Avenue at (650) 513-6500, where admissions are open 24 hours a day. Staff screen you for safety and medical necessity before admission. At Palm Avenue, people withdrawing from alcohol need medical clearance from an emergency department before admission.
Yes. A family member, a health care provider, or a county case manager can call to start the process. You’ll still take part in the screening so staff can plan the right care for you.
Share every medication you take during your screening call, and bring your Medi-Cal card if you have one. Staff will confirm what else to bring and the program rules before you arrive.
Ask during screening. At Palm Avenue, withdrawal medication can be prescribed when medically necessary, and staff can talk with you about options for ongoing care after detox.
Before you leave, your team reviews your needs and goals and refers you to the right level of treatment, such as residential care at Cronin House, outpatient treatment, or another program closer to home.
You don’t have to plan this alone. Call the program in your county for a confidential screening. You are not alone.
2035 Fairmont Drive
San Leandro, CA 94578
2251 Palm Ave.
San Mateo, CA 94403
Horizon Treatment Services main line and email
(510) 582-2100Itzia Cruz, LCSW, Clinical Services Director | Last reviewed September 2026.
Our full clinical and medical leadership is on our leadership page.
Content on this page is for general information and doesn’t replace professional medical advice. If you’re having a medical emergency, call 911. If you’re in crisis, call or text 988.
