Our Addiction Medicine Fellows

Stephanie Clavijo, MD MPH

Stephanie Clavijo, MD MPH (she/her/ella) is a proud daughter of Mexican immigrant parents and is first generation.  She grew up in Riverside, California which is part of the Inland Empire.  She spent about 9 years in Los Angeles at UCLA for undergrad, medical school (UCLA/Drew Medical Education Program) and obtaining her MPH in health policy and management. Steph is most passionate about addressing structural racism and oppression in medicine, disparities in STI, hepatitis C and HIV, and medical education.  She is currently finishing up the UCSF Primary Care Internal Medicine residency at San Francisco General and is excited to begin her addiction medicine fellowship at UCSF!  In her free time, Steph likes exploring national parks and hiking, learning how to make cocktails, and exploring new music.

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 like Community and Students Against Healthcare Racism 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 is completing the UCSF Primary Care Internal Medicine residency at San Francisco General. 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. He looks forward to staying in San Francisco and serving the amazing patients at San Francisco General and throughout the public health system. In his free time, Mike enjoys playing video games and spending time with his cat Nacho.

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 is currently completing his Family Medicine chief residency back at UNM, where he spends 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

Asmi Panigrahi, MD MPH (she/her/hers) is an East Coast native, originally from the suburbs of Washington, D.C.  She spent her undergrad and medical school years in New Jersey before moving to San Francisco, where she is now finishing her chief residency in the combined Kaiser Permanente-UCSF Internal Medicine/Preventive Medicine program. Her experiences in global health, health disparities research, 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

Sarah Rosenwohl-Mack, MD (she/her/hers) was born and raised in San Francisco and still enjoys her childhood activities of exploring the bay by MUNI and BART, swimming in the ocean, and hiking in the Sierra Nevada wilderness. She studied poetry and public health at Harvard, after which she 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, 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. She is a bilingual-certified clinician in Spanish and holds the HIV Specialist certification. Outside of work, Sarah can be found commuting by bike, going to farmers' markets with her wife and toddler, and swimming in the bay.

Sarah Burbank, MD

Jonny Callan, MD

Alejandro Castellanos, MD

Dymon Morgan, MD

Simone Vais, MD

Sam Lee, MD

Amy Liang, MD

Stephen Matzat, MD

Ekene Ojukwu, MD, MSc

Nicole Tantoco, MD, MPH

Meredith Adamo, MD

Theora Cimino, MD

 Michelle Lough, MD, MPH

Surabhi Nirkhe, MD

Gigi Simmons, MD

Elizabeth Abbs, MD

Ayesha Appa, MD

Katrina Ciraldo, MD​​​​

Trevor Lee, MD

Sarah Leyde, MD

Nicky Mehtani, MD MPH

Jesse Ristau, MD

Triveni Defries, MD MPH

Christy Soran, MD MPH

Jamie Carter, MD MPH

Hannah Snyder, MD