Our Addiction Medicine Fellows
![2024-25 Fellows](/sites/hiv.ucsf.edu/files/inline-images/PHOTO-2024-07-12-17-34-51.jpg)
2024-2025
![Stephanie Clavijo, MD MPH](/sites/hiv.ucsf.edu/files/inline-images/sclavijo_eras.jpg)
Stephanie Clavijo, MD MPH
Stephanie Clavijo, MD MPH (she/her/ella) is a proud daughter of Mexican immigrant parents and is a first-generation college student. She grew up in Riverside, California and spent about 9 years in Los Angeles at UCLA for undergraduate studies, medical school (UCLA/Drew Medical Education Program) and an MPH in health policy and management before coming to San Francisco. She completed her internal medicine residency at UCSF through the San Francisco Primary Care (SFPC) and is currently a Primary Care Addiction Medicine Fellow at UCSF. Steph is most passionate about addressing structural racism and oppression in medicine, disparities in HIV and addiction medicine, and medical education. In her free time, Steph likes exploring national parks and hiking, learning how to make cocktails, and exploring new music.
![Mike Levy, MD](/sites/hiv.ucsf.edu/files/inline-images/Michael%20Levy.jpg)
Mike Levy, MD
Mike Levy, MD (he/him/his) is originally from Albuquerque, New Mexico. He graduated from Stanford University with a degree in Human Biology, where he first fell in love with medicine and teaching. He attended medical school at the University of Colorado, where his experiences at Denver Health and his work with community groups solidified his desire to work with historically excluded and marginalized communities and help transform the healthcare system to be more equitable and just for all. Mike did his residency at the UCSF Primary Care Internal Medicine program at San Francisco General Hospital. His work at county hospitals impressed upon him the need for primary care doctors that are skilled at treating substance use disorders as a part of whole person care. In his free time, Mike enjoys playing videogames and spending time with his cat Nacho and his partner.
![Chance Najera, MD](/sites/hiv.ucsf.edu/files/inline-images/NA01136893.jpg)
Chance Najera, MD
Chance Najera, MD (he/him/his) is from Carlsbad, New Mexico. He attended college at the University of New Mexico (UNM), studying biochemistry and sociology. He received his medical degree from the University of Rochester, where he worked with immigrant populations and developed a passion for primary care with a focus on trauma-informed interpersonal communication. Chance completed his Family Medicine residency back at UNM, where he spent a lot of time taking care of families impacted by substance use in all stages of life—including neonatal, perinatal, postpartum, and outside of pregnancy from adolescence and into adulthood. Chance has a particular interest in newborn care and neonatal withdrawal management.
![Asmi Panigrahi, MD MPH](/sites/hiv.ucsf.edu/files/inline-images/PA03317047.jpg)
Asmi Panigrahi, MD MPH
Asmi Panigrahi, MD MPH (she/her/hers) is originally from the East Coast, where she grew up in the suburbs of Washington, D.C. She attended undergrad and medical school in the accelerated BS/MD at TCNJ/NJMS program before moving to San Francisco for dual residency in Internal Medicine and Preventive Medicine at Kaiser Permanente San Francisco-UCSF. Her residency program also included earning an MPH in Health Policy and Management at UC Berkeley. Over the course of her medical training, Asmi’s interests in health justice, health systems improvement, and public health advocacy have shaped her passion for primary care and addiction medicine. Outside of work, Asmi is a trained classical Indian dancer and has performed with troupes in the US and overseas. She continues to dance in San Francisco, and you can likely find her at Dance Mission or ODC on a weekend day off!
![Sarah Rosenwohl-Mack, MD](/sites/hiv.ucsf.edu/files/inline-images/id%20pic%202.jpg)
Sarah Rosenwohl-Mack, MD
Sarah Rosenwohl-Mack, MD (she/her/hers) was born and raised in San Francisco and still enjoys her childhood activities of swimming in the ocean and hiking in the Sierra Nevada wilderness. She studied poetry and public health at Harvard, then moved to London to pursue an MPH at Imperial College as a Fulbright Scholar in the UK's National Health Service. She returned to San Francisco for medical school at UCSF and completed the UCSF Family & Community Medicine residency at San Francisco General Hospital, where she organized around issues of racial justice and structural violence. After her addiction medicine fellowship, Sarah hopes to practice primary care and addiction medicine in San Francisco, working at the intersections of gender-affirming care, HIV, and reproductive health, especially in unhoused populations.
2023-2024
![Sarah Burbank, MD](/sites/hiv.ucsf.edu/files/inline-images/Sarah%20Burhank%203x3_Sarah%20Burbank_0.jpg)
Sarah Burbank, MD
![Jonny Callan, MD](/sites/hiv.ucsf.edu/files/inline-images/JonCallan_headshot2_Jonathan%20Callan_0.jpeg)
Jonny Callan, MD
![Alejandro Castellanos, MD](/sites/hiv.ucsf.edu/files/inline-images/IFace_220721070720_Jose%20Castellanos%20Mon_0.jpg)
Alejandro Castellanos, MD
![Dymon Morgan, MD](/sites/hiv.ucsf.edu/files/inline-images/IMG_1798_Dymon%20Morgan_crop_0.jpg)
Dymon Morgan, MD
![Simone Vais, MD](/sites/hiv.ucsf.edu/files/inline-images/Residency%20headshot_Simone%20Vais%20crop_0.jpg)
Simone Vais, MD
2022-2023
![Sam Lee, MD](/sites/hiv.ucsf.edu/files/inline-images/Sam%20crop_0.png)
Sam Lee, MD
![Amy Liang, MD](/sites/hiv.ucsf.edu/files/inline-images/LI10908200_0_0.jpg)
Amy Liang, MD
![Stephen Matzat, MD](/sites/hiv.ucsf.edu/files/inline-images/Stephen_0.png)
Stephen Matzat, MD
![Ekene Ojukwu, MD, MSc](/sites/hiv.ucsf.edu/files/inline-images/Ekene%20crop_0.png)
Ekene Ojukwu, MD, MSc
![Nicole Tantoco, MD MPH](/sites/hiv.ucsf.edu/files/inline-images/TA04893078_0.jpg)
Nicole Tantoco, MD, MPH
2021-2022
![Meredith Adamo, MD](/sites/hiv.ucsf.edu/files/inline-images/adamo%20headshot1.jpg)
Meredith Adamo, MD
![Theora Cimino, MD](/sites/hiv.ucsf.edu/files/inline-images/CI05239468_0.jpg)
Theora Cimino, MD
![Michelle Lough, MD](/sites/hiv.ucsf.edu/files/inline-images/lough%20headshot_0.jpg)
Michelle Lough, MD, MPH
![Surabhi Nirkhe, MD](/sites/hiv.ucsf.edu/files/inline-images/nirkhe%20headshot_0.jpg)
Surabhi Nirkhe, MD
![Gigi Simmons, MD](/sites/hiv.ucsf.edu/files/inline-images/gigi2%20-%20Copy.jpg)
Gigi Simmons, MD
2020-2021
![Elizabeth Abbs, MD](/sites/hiv.ucsf.edu/files/inline-images/Elizabeth%20Abbs_0.jpg)
Elizabeth Abbs, MD
![Ayesha Appa, MD](/sites/hiv.ucsf.edu/files/inline-images/AP09309255_0_0.jpg)
Ayesha Appa, MD
![Katrina Ciraldo, MD](/sites/hiv.ucsf.edu/files/inline-images/Katrina%20Ciraldo_0_0.png)
Katrina Ciraldo, MD
![Trevor Lee, MD](/sites/hiv.ucsf.edu/files/inline-images/trevor%20lee.jpg)
Trevor Lee, MD
2019-2020
![Sarah Leyde, MD](/sites/hiv.ucsf.edu/files/inline-images/Leyde_Sarah-large_0.jpg)
Sarah Leyde, MD
![Nicky Mehtani, MD MPH](/sites/hiv.ucsf.edu/files/inline-images/Mehtani_Nicky_badgephoto_0.jpg)
Nicky Mehtani, MD MPH
![Jesse Ristau, MD](/sites/hiv.ucsf.edu/files/inline-images/JTRheadshot_Final%202_0.jpg)
Jesse Ristau, MD
2018-2019
![Triveni Defries, MD MPH](/sites/hiv.ucsf.edu/files/inline-images/Triveni%20photo_0.jpg)
Triveni Defries, MD MPH
![Christy Soran, MD MPH](/sites/hiv.ucsf.edu/files/inline-images/Christy%20photo_0_0.jpg)
Christy Soran, MD MPH
2017-2018
Jamie Carter, MD MPH
![Hannah Snyder, MD](/sites/hiv.ucsf.edu/files/inline-images/HannahSnyder_0_0_0.jpg)
Hannah Snyder, MD
Examples of Fellow Projects:
-
Low barrier buprenorphine treatment for persons experiencing homelessness and injecting heroin in San Francisco (Jamie Carter)
-
Support for Hospital Opioid Use Treatment (Project SHOUT) (Hannah Snyder)
- Clinical consultation for patients on chronic opioid therapy with concerning behaviors (Christy Soran)
- Clinician’s guide to buprenorphine treatment (Triveni Defries)
- Contingency management for patients with methamphetamine-associated cardiomyopathy in a novel addiction and cardiology co-management clinic (Sarah Leyde, Elizabeth Abbs, Meredith Adamo)
- Pilot of an addiction medicine boot camp for hospitalists (Jesse Ristau)
- Understanding barriers to buprenorphine access among people leaving San Francisco jails (Nicky Mehtani)
- Clinical outcomes of patients who inject drugs with serious staphylococcal infections (Ayesha Appa, Meredith Adamo)
- Implementation of a managed alcohol program during the COVID19 pandemic in San Francisco (Jesse Ristau, Nicky Mehtani)
- Homeless deaths in SIP (Shelter-in-Place) sites during the COVID19 pandemic (Elizabeth Abbs, Trevor Lee)
- Team-Based care for pregnant people with severe substance use disorder(s) (Katrina Ciraldo)
- Road Home, What Now? The Effects of Transitional Housing on mental health, substance use and chronic medical condition on justice-seeking individuals in the Tenderloin (Gigi Simmons)
- Developing an Anti-Stigma and Harm Reduction Training for Primary Care Staff: A Crucial Step in Addressing the Overdose Crisis (Surabhi Nirkhe)
- Perspectives of Psychedelic Medications as Treatment for Substance Use Disorder Among People Experiencing Homelessness (Theora Cimino)
- Cross-disciplinary advocacy for undocumented individuals with substance use disorder in legal/deportation proceedings (Michelle Lough)
- Development of a hospital-wide protocol for rapid methadone titrations in severe fentanyl use disorder (Meredith Adamo)
- Immigrants and Substance Use Disorders: A Legal and Medical Perspective (Michelle Lough, Triveni Defries)
![Pottery at POW](/sites/hiv.ucsf.edu/files/2024-01/Pottery%20at%20POW.jpg)
Dymon and Alejandro making pottery during Plus One Week
Dymon, Alejandro and Joanna
![KQED - OBIC Buprenorphine Clinic](/sites/hiv.ucsf.edu/files/2024-01/RS64046_005_KQED_OBICBuprenorphineClinic_03292023-qut.jpg)
KQED - OBIC Buprenorphine Clinic
![Ekene Ojukwu, MD MSc, presenting at ACAAM](/sites/hiv.ucsf.edu/files/2024-01/%28362%29%20ACAAM_2023.jpg)
Ekene Ojukwu, MD MSc, presenting at ACAAM
![Overdose Awareness Day 2021](/sites/hiv.ucsf.edu/files/2023-04/1st%20photo.Overdose%20awareness%20day%202021.jpg)
Overdose Awareness Day 2021 (Meredith Adamo, Gigi Simmons, Surabhi Nirkhe, Trevor Lee)
![Nicky Mehtani, Paula Lum, Jesse Ristau, and Alyssa Michaels - HIV Grand Rounds 2019-20](/sites/hiv.ucsf.edu/files/2023-04/520B2441-164C-452D-A575-99A2446340DB.jpeg)
Nicky Mehtani, Paula Lum, Jesse Ristau, and Alyssa Michaels - HIV Grand Rounds 2019-20
![2019-20 Fellow Grads](/sites/hiv.ucsf.edu/files/2023-04/2019-20%20Fellow%20Grads.jpeg)
2019-20 Fellow Grads (Sarah Leyde, Jesse Ristau, and Nicky Mehtani) with Paula and Alyssa
![Jesse Ristau - HIV Grand Rounds 2019-20](/sites/hiv.ucsf.edu/files/2023-04/2019-20.Ristau%20HIVGR.jpeg)
Jesse Ristau - HIV Grand Rounds 2019-20
![2020-21 Fellows Barefoot Camp](/sites/hiv.ucsf.edu/files/2023-04/2020-21%20Fellows%20BFC.jpg)
2020-21 Fellows Barefoot Camp (Ayesha Appa, Elizabeth Abbs, Trevor Lee, and Katrina Ciraldo) with Paula Lum and Marlene Martin
![AMERSA 2017](/sites/hiv.ucsf.edu/files/2023-04/AMERSA%202017.jpeg)
AMERSA 2017
![AMERSA 2018](/sites/hiv.ucsf.edu/files/2023-04/Amersa%202018.jpeg)
AMERSA 2018
![AY2022-23 Fellows](/sites/hiv.ucsf.edu/files/2023-04/AY22-23%20Fellows%201.jpg)
AY2022-23 Fellows (Sam Lee, Amy Liang, Stephen Matzat, Ekene Ojukwu, and Nicole Tantoco)
![Berg Smith 2019](/sites/hiv.ucsf.edu/files/2023-04/Berg%20Smith%202019.jpeg)
Berg Smith MI Training 2019
![AY2022-23 Fellows with Paula and Soraya](/sites/hiv.ucsf.edu/files/2023-04/IMG_0074.jpg)
AY2022-23 Fellows (Sam Lee, Amy Liang, Stephen Matzat, Ekene Ojukwu, and Nicole Tantoco) with Paula and Soraya
![AY2020-21 Graduating Fellows (Ayesha Appa, Elizabeth Abbs, Trevor Lee, and Katrina Ciraldo) with Paula, Soraya, and Scott](/sites/hiv.ucsf.edu/files/2023-04/IMG_0780.jpeg)
AY2020-21 Graduating Fellows (Elizabeth Abbs, Ayesha Appa, Katrina Ciraldo, and Trevor Lee) with Paula, Soraya, and Scott
AY2021-2022 Fellows (Gigi Simmons, Theora Cimino, Surabhi Nirkhe, Meredith Adamo, Michelle Lough)
![AY2022-23 Fellows (Nicole Tantoco, Ekene Ojukwu, Amy Liang, Stephen Matzat, Sam Lee)](/sites/hiv.ucsf.edu/files/2023-04/IMG_5912.jpg)
AY2022-23 Fellows (Nicole Tantoco, Ekene Ojukwu, Amy Liang, Stephen Matzat, Sam Lee)
![AY2020-21 Fellows (Katrina Ciraldo, Ayesha Appa, Elizabeth Abbs, Trevor Lee)](/sites/hiv.ucsf.edu/files/2023-04/IMG_8246.jpeg)
AY2020-21 Fellows (Katrina Ciraldo, Ayesha Appa, Elizabeth Abbs, Trevor Lee)
![Nicky Mehtani at AMERSA 2019](/sites/hiv.ucsf.edu/files/2023-04/Nicky%20at%20AMERSA%202019.jpg)
Nicky Mehtani at AMERSA 2019
![Hannah Snyder](/sites/hiv.ucsf.edu/files/2023-04/ratio3x2_1200.jpg)
Hannah Snyder
![Sarah Leyde presenting to cardiology](/sites/hiv.ucsf.edu/files/2023-04/Sarah%20Leyde%20talking%20to%20cardiology.jpg)
Sarah Leyde presenting to cardiology
![The Tribunal - AY2021-2022 Fellows (Gigi Simmons, Theora Cimino, Surabhi Nirkhe, Meredith Adamo, Michelle Lough)](/sites/hiv.ucsf.edu/files/2023-04/The%20Tribunal.jpeg)
The Tribunal - AY2021-2022 Fellows (Gigi Simmons, Theora Cimino, Surabhi Nirkhe, Meredith Adamo, Michelle Lough)