28 Day Rehab

Building a solid foundation for lifelong sobriety.

The 28 day rehab model was started by Duffy's Napa Valley Rehab in Northern California. Founded in 1967, Duffy's has helped over 36,000 people find hope and recovery.

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A 28 day residential rehab program focuses on deepening your understanding of the disease of addiction, learning about the concepts of recovery, and developing the living skills necessary for a life of lasting recovery and sobriety while living in a supportive environment.

Time Investment

With less time commitment and less cost than longer residential programs, the 28 day drug and rehab program is one of the most popular options available.

How Much Does 28 Day Rehab Cost?

60-90 Day Residential


Higher employment rate after rehab

Intense focus on relapse prevention

Lower relapse rate

Significant time commitment

Most expensive; not likely to be covered by insurance

28 Day Residential


Covered by most insurance

Structured environment to focus on recovery

Lower relapse rates than outpatient programs

Month time commitment

More expensive than outpatient



Covered by most insurance

Flexible and minimal time commitment

Focus on strong local support network

Not very successful

Higher Relapse Rate

Where 28 Day Rehab Started

Duffy's Napa Valley Rehab was founded upon the 12 step principles. Using this philosophy, Duffy's has become a respected rehabilitation center.

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Duffy's was founded by Gene Duffy, a former alcoholic whose passion was to help others find hope for life long sobriety. Now, over 40 years later, Duffy's Napa Valley Rehab is still run by the Duffy family and the spirit of its founder flourishes today.

Family Business

Since its beginning, Duffy's has been a family business for a family problem. We look at the guests that come to the 28 day programs at Duffy's as part of our extended family and we include everyone in the family as part of the recovery solution.


Duffy's Napa Valley Rehab is located at the base of Mt. Helena in Calistoga, California.

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