Turning great ideas into healthier communities


California Opioid Safety Network

COSN provides support including TA, coaching and customized learning opportunities to Opioid Safety coalitions working throughout California on the following strategies: adopting safer prescribing practices, improving access to medical treatment, increasing naloxone distribution, and other innovative harm reduction strategies. 



AmeriCorps VISTA Program

CHLP’s COSN sponsors the largest AmeriCorps VISTA program dedicated to opioid safety in the country, with the capacity to place 40 VISTA members in coalitions across California. VISTA members serve for one year, bolstering the impact of the coalitions to incite transformational change within their communities. As the sponsor organization, CHLP manages recruitment and placement as well as provides a professional development and support network for AmeriCorps VISTA members throughout the state.

The National Overdose Prevention Network (NOPN)

NOPN is a community of inspired learners ready to share best lessons and build new knowledge together, providing a platform to support a national network committed to health equity and preventing both new addictions and unnecessary overdose deaths. It supports a community of partners from across the country with virtual and in-person learning opportunities, sponsored tailored programs, and a robust public website housing trainings, tools and resources.

Here's How We're Making a Difference

Advancing Innovative Opioid Prevention Partnerships to Save Lives

The opioid epidemic is having a devastating impact in communities across the nation, fueling a dramatic increase in premature deaths. In California, there were almost 2,000 opioid overdose deaths in 2016. In late 2015, the California Health Care Foundation (CHCF) launched a statewide network of 16 local coalitions in 23 counties focused on three priority strategies—safe opioid prescribing, use of medication-assisted addiction treatment (MAT), and access to naloxone to reverse drug overdoses. 

In 2017, PHI conducted an assessment of the California Health Care Foundation’s network of opioid safety coalitions to identify what strategies are working at the local level. PHI found that more than 90% of coalitions facilitated adoption of safer prescribing guidelines, more than 75% increased access to naloxone to reverse overdoses, and more than 50% expanded use of medication-assisted addiction treatment. 

Learn more from the report, Tackling an Epidemic: An Assessment of the California Opioid Safety Coalitions Network.


Bolstering What Works to Stem the Opioid Crisis

In 2019, PHI's California Bridge launched an accelerator training program at 52 hospitals and ERs across the state, supporting healthcare providers offering 24/7 access to medication for addiction treatment (MAT). Since the program’s inception in April 2019, these sites have collectively served just under 5,000 people, 1856 of whom have been successfully connected with an ongoing source of outpatient substance use treatment. 

PHI’s California Opioid Safety Network (COSN) is the largest opioid safety network in the country, serving 85% of California's 30 million people. Now, 90% of COSN coalitions are distributing naloxone and 91% are increasing access to MAT.

And in June, PHI hosted U.S. Surgeon General Jerome Adams at its first-ever National Opioid Leadership Summit, bringing together public health, health care and criminal justice experts to share the best practices and develop cross-sector solutions.