PhillipOliverCoffinMDMIA, FACP, FIDSA(He/Him)

Internal Medicine • San Francisco, CA

Addiction Medicine, Hospital Medicine/Hospitalist, Infectious Disease

Director of Substance Use Research

Join to view full profile

Dr. Coffin is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

Connect with other colleagues in the same hospital or clinic
Search all U.S. specialist profiles and refer a patient
Read the latest clinical news and earn CME/CEU credits

See Dr. Coffin's full profile

Already have an account?

Office
25 Van Ness Ave
Suite 500
San Francisco, CA 94102
Is this information wrong?

Education & Training

University of WashingtonFellowship, Infectious Disease, 2009 - 2012
New York Presbyterian Hospital (Columbia Campus)Residency, Internal Medicine, 2006 - 2009
University of California San Francisco School of MedicineClass of 2006

Certifications & Licensure

CA State Medical License 2012 - 2025
WA State Medical License 2009 - 2013
NY State Medical License 2007 - 2010
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Infectious Disease
American Board of Preventive Medicine Addiction Medicine

Clinical Trials

Aripiprazole Treatment for Methamphetamine Dependence Among High-risk Individuals Start of enrollment: 2009 Mar 01
Completed
Phase 2
Mirtazapine to Reduce Methamphetamine Use Among MSM With High-risk HIV Behaviors Start of enrollment: 2007 May 01
Completed
Phase 2
Reducing HIV Risk Among Episodic Substance Using Men Who Have Sex With Men (SUMSM) Start of enrollment: 2007 Sep 01
Completed
Phase 1, Phase 2
Extended-Release Naltrexone to Treat Methamphetamine Dependence in Men Who Have Sex With Men (MSM) Start of enrollment: 2012 Sep 01
Completed
Phase 2
Intermittent Naltrexone Among Polysubstance Users Start of enrollment: 2013 May 01
Completed
Phase 2
Mirtazapine for the Treatment of Methamphetamine Dependence Among MSM (M2.0) Start of enrollment: 2013 Aug 01
Completed
Phase 2
Repeated-dose Brief Intervention to Reduce Overdose and Risk Behaviors Among Naloxone Recipients Start of enrollment: 2014 Jul 01
Completed
Not Applicable
Pilot Treatment as Prevention for HCV Among Persons Who Actively Inject Drugs Start of enrollment: 2015 Dec 01
Completed
Phase 4
Accelerated Development of Additive Pharmacotherapy Treatment (ADAPT-2) for Methamphetamine Use Disorder Start of enrollment: 2017 May 05
Completed
Phase 3
Repeated-dose Behavioral Intervention to Reduce Opioid Overdose Start of enrollment: 2019 Apr 22
Completed
Not Applicable
PrEP Intervention for People Who Inject Substances and Use Methamphetamine Start of enrollment: 2021 Apr 30
Recruiting
Phase 4
Mirtazapine and Methamphetamine Drug-drug Interaction Study Start of enrollment: 2021 Jul 12
Recruiting
Phase 1
Join now to see all

Publications & Presentations

PubMed

Overdose from Unintentional Fentanyl Use when Intending to Use a Non-opioid Substance: An Analysis of Medically Attended Opioid Overdose Events.
Patrick Low, Bryson O Gomez, Jeffrey K Hom, Christine S Soran, Michael Mason, Joseph Graterol, Alexander R Bazazi, Hannah Snyder, Barry Zevin, Phillip O Coffin> ;Journal of Urban Health. 2024 Apr 3
Brief Report: The Role of Substance Use in Structural Heart Disease Among Women Living With HIV.
Riley, E., Vittinghoff, E., Wu, A., Ravi, A., Coffin, P., Martinez, C., Hsue, P., Lynch, K.> ;Journal of Acquired Immune Deficiency Syndromes. 2024 Apr 1
"If you're strung out and female, they will take advantage of you": A qualitative study exploring drug use and substance use service experiences among women in Boston ...
Miriam T H Harris, Jordana Laks, Emily Hurstak, Jennifer P Jain, Audrey M Lambert, Ariel D Maschke, Sarah M Bagley, John Farley, Phillip O Coffin, Vanessa M McMahan, C...> ;Journal of Substance Use and Addiction Treatment. 2024 Feb 1
Cocaine Use is Associated With Increased LVMI in Unstably Housed Women With Polysubstance Use.
Akshay Ravi, Eric Vittinghoff, Alan H B Wu, Leslie W Suen, Phillip O Coffin, Priscilla Hsue, Kara L Lynch, Sithu Win, Dhruv S Kazi, Elise D Riley> ;Substance Abuse. 2023 Oct 1
Sexual orientation differences among men in a randomized clinical trial of extended-release naltrexone and bupropion for methamphetamine use disorder.
Jeremy D Kidd, Sabrina L Smiley, Phillip O Coffin, Thomas J Carmody, Frances R Levin, Edward V Nunes, Steven J Shoptaw, Madhukar H Trivedi> ;Drug and Alcohol Dependence. 2023 Sep 1
1 citations
Multiple substance use and blood pressure in women experiencing homelessness.
Leslie W Suen, Eric Vittinghoff, Alan H B Wu, Akshay Ravi, Phillip O Coffin, Priscilla Hsue, Kara L Lynch, Dhruv S Kazi, Elise D Riley> ;Addictive Behaviors Reports. 2023 Jun 1
Primary care management of Long-Term opioid therapy.
Phillip O Coffin, Rebecca S Martinez, Brian Wylie, Bunny Ryder> ;Annals of Medicine. 2022 Dec 1
Impact of multiple substance use on circulating ST2, a biomarker of adverse cardiac remodelling, in women.
Elise D Riley, Dhruv S Kazi, Phillip O Coffin, Eric Vittinghoff, Amanda N Wade, Tommaso C Bulfone, Kara L Lynch, Zahra Atai, Alan H B Wu> ;Biomarkers. 2022 Dec 1
4 citations
"There's No Heroin Around Anymore. It's All Fentanyl." Adaptation of an Opioid Overdose Prevention Counseling Approach to Address Fentanyl Overdose: Formative Study.
Vanessa M McMahan, Justine Arenander, Tim Matheson, Audrey M Lambert, Sarah Brennan, Traci C Green, Alexander Y Walley, Phillip O Coffin> ;JMIR Formative Research. 2022 Sep 7
6 citations
Evidence of Pre-mortem Opioid Use among Fentanyl Overdose Decedents in a Safety Net Healthcare System.
Phillip O Coffin, Vanessa M McMahan, Ciaran Murphy> ;Journal of Urban Health. 2022 Oct 1
1 citations
Multiple substance use, inflammation and cardiac stretch in women living with HIV.
Elise D Riley, Jorge R Kizer, Phyllis C Tien, Eric Vittinghoff, Kara L Lynch, Alan H B Wu, Phillip O Coffin, Gabriele Beck-Engeser, Carl Braun, Peter W Hunt> ;Drug and Alcohol Dependence. 2022 Sep 1
1 citations
Correlates of high phosphatidylethanol (PEth) levels and their concordance with self-reported heavy alcohol consumption among men who have sex with men who binge drink...
Matthew F McLaughlin, Jennifer P Jain, Janet Ikeda, John E Walker, Phillip Coffin, Glenn-Milo Santos> ;Alcoholism, Clinical and Experimental Research. 2022 Aug 1
4 citations
A Chronic Condition Disguised as an Acute Event: the Case for Re-thinking Stimulant Overdose Death.
Elise D Riley, Priscilla Y Hsue, Phillip O Coffin> ;Journal of General Internal Medicine. 2022 Oct 1
7 citations
Modeling of overdose and naloxone distribution in the setting of fentanyl compared to heroin.
Phillip O Coffin, Sigal Maya, James G Kahn> ;Drug and Alcohol Dependence. 2022 Jul 1
1 citations
Engagement in HIV care and viral suppression following changes in long-term opioid therapy for treatment for chronic pain.
Janelle Silvis, Christopher L Rowe, Sarah Dobbins, Nimah Haq, Eric Vittinghoff, Vanessa M McMahan, Ayesha Appa, Phillip O Coffin> ;AIDS and Behavior. 2022 Oct 1
4 citations
Inherited Patients Taking Opioids for Chronic Pain - Considerations for Primary Care.
Phillip O Coffin, Antje M Barreveld> ;The New England Journal of Medicine. 2022 Feb 17
6 citations
Rapid Overlap Initiation Protocol Using Low Dose Buprenorphine for Opioid Use Disorder Treatment in an Outpatient Setting: A Case Series.
Leslie W Suen, Trevor G Lee, Michael Silva, Paulette Walton, Phillip O Coffin, Michelle Geier, Christine S Soran> ;Journal of Addiction Medicine. 2022 Feb 10
15 citations
Emergency department visits and trends related to cocaine, psychostimulants, and opioids in the United States, 2008-2018.
Leslie W Suen, Thibaut Davy-Mendez, Kathy T LeSaint, Elise D Riley, Phillip O Coffin> ;BMC Emergency Medicine. 2022 Feb 4
8 citations
Evaluating buprenorphine prescribing and opioid-related health outcomes following the expansion the buprenorphine waiver program.
Christopher Rowe, Jennifer Ahern, Alan Hubbard, Phillip O. Coffin> ;Journal of Substance Abuse Treatment. 2022 Jan 1
3 citations
Factors Associated with Pain Treatment Satisfaction Among Patients with Chronic Non-Cancer Pain and Substance Use.
Leslie W. Suen, Vanessa McMahan, Christopher C. Rowe, Sumeet Bhardwaj, Kelly R. Knight, Margot Kushel, Glenn-Milo Santos, Phillip O. Coffin> ;Journal of the American Board of Family Medicine. 2021 Nov 1
6 citations
Non-fatal stimulant overdose among homeless and unstably housed women in San Francisco, California.
Thibaut Davy-Mendez, Eric Vittinghoff, Samantha E. Dilworth, Leslie W. Suen, Carl Braun, Phillip O. Coffin, Derek D. Satre, Elise D. Riley> ;Drug and Alcohol Dependence. 2021 Nov 1
8 citations
Patient-Directed Discharges Among Persons Who Use Drugs Hospitalized with Invasive Staphylococcus aureus Infections: Opportunities for Improvement.
Ayesha Appa, Meredith Adamo, Stephenie Le, Jennifer Davis, Lisa G. Winston, Sarah B Doernberg, Henry F. Chambers, Marlene Martin, Nancy K. Hills, Phillip O. Coffin, Vi...> ;The American Journal of Medicine. 2021 Sep 8
3 citations
Pilot study of extended-release lorcaserin for cocaine use disorder among men who have sex with men: A double-blind, placebo-controlled randomized trial.
Glenn-Milo Santos, Janet Ikeda, Phillip O. Coffin, John E. Walker, Tim Matheson, Matthew McLaughlin, Jennifer Jain, Eric Vittinghoff, Steven L. Batki> ;Plos One. 2021 Jul 15
2 citations
Evaluating the Effects of Opioid Prescribing Policies on Patient Outcomes in a Safety-net Primary Care Clinic
Christopher Rowe, Kellene Eagen, Jennifer Ahern, Mark Faul, Alan Hubbard, Phillip O. Coffin> ;Journal of General Internal Medicine. 2021 Jun 25
50 citations
Drug Overdose Deaths Before and After Shelter-in-Place Orders During the COVID-19 Pandemic in San Francisco.
Ayesha Appa, Luke N Rodda, Caroline Cawley, Barry Zevin, Phillip O. Coffin, Monica Gandhi, Elizabeth Imbert> ;JAMA Network Open. 2021 May 3
Join now to see all

Authored Content

Overdose Research PubMed UpdatesJanuary 2019

Press Mentions

Medication-Based Opioid Treatment on the Rise as San Francisco Grapples with OverdosesAugust 27th, 2022
As Meth Wreaks Havoc on SF Emergency Rooms, Urgency Grows for New TreatmentsAugust 23rd, 2022
Troubling Questions Follow Closure of Sprawling Pain Clinic ChainFebruary 22nd, 2022
Join now to see all