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PSTP People

The PSTP currently consists of a mix of interns, residents, and fellows of all different levels and subspecialties. The current subspecialty matrix crosses the areas of hematology-oncology, gastroenterology, endocrinology, rheumatology, infectious diseases, and pulmonary critical care medicine.

In past years graduates of the PSTP have, by and large, pursued academic medical careers in a variety of areas, including the National Institutes of Health (NIH).

Current Residents, Fellows, & Alumni


2024

  • Armon Azizi

    Armon Azizi

    Internal Medicine Resident

    Hometown: Los Gatos, CA
    Education: UC San Diego, BS in Bioinformatics; UC Irvine, MD
    Clinical and research interests: Oncology, tumor immunology, computational approaches for oncologic drug target discovery
    Personal interests: Hiking, cooking, and surfing
    Honors and Awards: American Society of Hematology (ASH) HONORS award, ASH Abstract Achievement Award, UC Irvine School of Medicine Meyskens Family Medical Research Award, UC Irvine Clinical Professionalism Award, UC Irvine Granville and Sidney Kirkup Fellowship in Medicine

  • Annie Cowan

    Annie Cowan

    Internal Medicine Resident

    Hometown: Brunswick, Maine
    Education: MD, Mayo Clinic Alix School of Medicine; BA, Middlebury College
    Clinical and research interests:  Hematologic malignancies, translational computational biology
    Personal interests: Spicy food, soccer, and snuggling with my pets!

  • Renato Guerrieri

    Renato Guerrieri

    Internal Medicine Resident

    Hometown: Barrington, Rhode Island
    Education: MD Anderson UTHealth Houston Medical Scientist Training Program
    Clinical and research interests: Brain Metastasis, Tumor Immunology, Medical Oncology
    Personal interests: Indoor Cycling, Hiking, Sailing, Advocacy, LGBTQ+, and my dog Bae
    Honors and Awards: CCTS TL1 Pre-Doctoral Fellowship

 2023

  • Connor Beebout, MD, PhD

    Connor Beebout, MD, PhD

    Internal Medicine Resident

    Hometown: Redding, CA
    Education: UC Davis, BA Philosophy, BS Microbiology; MD/PhD, Vanderbilt University
    Clinical and research interests: Infectious Diseases, bacterial pathogenesis, metabolism, host-pathogen interactions
    Personal interests: Running, hiking, going to the beach with my wife and son
    Honors and Awards: Graduate Student of the Year Award (Vanderbilt Institute for Infection, Immunology, and Inflammation); Sidney P Colowick Outstanding Graduate Student Award (Vanderbilt Microbe-Host Interactions Graduate Program); NRSA F30 (NIAID)

  • Travis Nielsen, MD, PhD, MPH

    Travis Nielsen, MD, PhD, MPH

    Internal Medicine Resident

    Hometown: Moreno Valley, CA
    Education: UC Riverside BA, University of Southern California PhD, Loyola University Chicago MD
    Clinical and research interests: Iinfectious Diseases, nontraditional therapeutics for infections caused by antimicrobial-resistant pathogens
    Personal interests: Dollar-bill origami, classic cars, fossils & geodes
    Honors and Awards: The Order of Arêté (University of Southern California), Outstanding Abstract (American Society for Microbiology), Albert Schweitzer Fellowship (Chicago Chapter)

  • Dan Youmans, MD, PhD

    Dan Youmans, MD, PhD

    Internal Medicine Resident

    Hometown: San Diego, CA
    Education: UC Berkeley, BS in Chemical Biology; University of Colorado Anschutz Medical Campus, MD; University of Colorado Boulder, PhD in Biochemistry
    Clinical and research interests: Pulmonary and Critical Care Medicine, lung developmental biology
    Personal interests: Surfing, spending time at the beach and in the ocean with my spouse and our baby, and Padres games at Petco Park
    Honors and Awards: AOA, University of Colorado student clinical professionalism award

 2021

  • Harrison Penrose, MD, PhD

    Harrison Penrose, MD, PhD

    Gastroenterology Fellow

    Hometown: Auburn, CA
    Education: UCSD (BS, MS), Tulane Univ SOM (MD, PhD), UCSD (Internal Medicine Residency, GI Fellowship)
    Clinical and research interests: Gut Inflammation, Metabolism, Obesity, IBD, Colon Cancer, Drug Discovery
    Personal interests: Surfing

  • Eric Roth, MD, PhD

    Eric Roth, MD, PhD

     

    Hematology/Oncology Fellow

     Hometown: Carmel, IN
    Education: Indiana University, BS, Biotechnology; Stony Brook University, MD, PhD
    Clinical and research interests: Solid tumor oncology, tumor microenvironment, metastatic processes, and translational drug development
    Personal interests: Bicycling, snorkeling, struggling to surf

  • Amara Seng, MD. PhD

    Amara Seng, MD. PhD

    Rheumatology, Allergy, & Immunology Fellow

    Education: MD/PhD: University of Kansas
    Current Institution: Cedars Sinai

2020

  • Morgan Birabaharan, MD

    Morgan Birabaharan, MD

    Infectious Diseases Fellow

     Hometown: Reading, PA
    Education: Lehigh University B.S. Pharmaceutical Chemistry, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell MD
    Clinical and research interests: Discovery and development of microbiota-derived therapeutics against infectious diseases
    Personal interests: NBA, weightlifting, Sri Lankan cuisine
    Honors and Awards: 2022 UCSD Excellence in Teaching Award, 2023 UCSD Excellence in Teaching Award

  • Brian Ji, MD, PhD

    Brian Ji, MD, PhD

    Hematology / Oncology Fellow

    Hometown: Madison, WI
    Education: UW-Madison BS, Columbia University MD/PhD
    Clinical and research interests: Solid tumor oncology, and applying computational approaches to better understand tumor cell biology and physiology
    Personal interests: Playing basketball and soccer, trying to keep up with my 10 month old!
    Honors and Awards: Goldwater scholarship, AOA, Columbia Janeway Prize

2019

  • Michael Doud, MD, PhD

    Michael Doud, MD, PhD

    Infectious Diseases Fellow

    Hometown: Naperville, IL
    Education: University of Michigan (BSE), University of Washington (MD, PhD)
    Clinical and research interests: Phage therapy, synthetic biology, bacteriophage-host interactions
    Personal interests: Hiking, music

2018

  • Sharon Choi, MD, PhD

    Sharon Choi, MD, PhD

    Hematology / Oncology Fellow

    Hometown: Southern California
    Education: MD, PhD, University of Illinois Chicago
    Clinical and research interests: GU cancer research
    Honors and Awards: CRM fellowship award 2023

  • Cynthia Hsu, MD, PhD

    Cynthia Hsu, MD, PhD

    Staff Physician and Postdoctoral Fellow

    Hometown: Bellevue, WA
    Education: University of Washington, BS; UCSD, M.D./PhD
    Clinical and research interests: Gut microbiome, alcohol use disorder, and liver disease
    Personal interests: Hiking/being outdoors, cooking/baking, being with my family
    Honors and Awards: 2023-2025 American Association for the Study of Liver Diseases Foundation Clinical, Translational, and Outcomes Research Award in Liver Diseases, 2023-2025 American Gastroenterological Association Fellowship-to-faculty Transition Award, 2023 Southern California Research Center for ALPD and Cirrhosis Pilot Project Award, 2022 Samuel French Memorial Award, Southern California Research Center for ALPD and Cirrhosis

  • Paul Hsu, MD, PhD

    Paul Hsu, MD, PhD

    Staff Physician and Postdoctoral Fellow

    Hometown: Diamond Bar, CA
    Education: MD, PhD, Pennsylvania State University School of Medicine
    Clinical and research interests: Interactions between intestinal CD8 T cells and inflammatory joint and skin disease
    Personal interests: Tabletop games, 3D printing, trying to bowl
    Honors and Awards:  2023 Federation of Clinical Immunology Societies FOCIS Center of Excellence Travel Award

Alumni

2017

Sydney Ramirez, MD, PhD

MD/PhD: CSU Sacramento, BS (summa cum laude); UTMB, MD, PhD
Current Position: Associate Physician and Postdoctoral Fellow in the Division of Infectious Diseases at UC San Diego, and Instructor at La Jolla Institue for Immunology

Shiruyeh Schokrpur, MD, PhD

MD/PhD: BA, UC Berkeley; MD, PhD: UCLA
Current Position: Assistant Professor at UC Davis, Division of Hematology/Oncology

2016

Benjamin Goldenson, MD, PhD

MD/PhD: Northwestern University
Current Position: Hoag Health System, Hematology/Oncology

Kentson Lam, MD, PhD

MD/PhD: UC San Diego
Current Position:  Associate Physician, UC San Diego, Division of Regenerative Medicine

2015

Calvin Hang, MD, PhD

MD/PhD: UC San Diego
Email: cahang@health.ucsd.edu
Fellowship: Cardiology
Current Position: Kaiser Permanente

Thomas Martin, MD, MS

MD: University of Oxford
Email: thm001@health.ucsd.edu
Fellowship: Infectious Diseases
Current Position: Assistant Professor, UC San Diego

Thomas Prohaska, MD

MD: Medical University of Vienna
Email: tprohaska@health.ucsd.edu
Fellowship: Cardiology
Current Position: Associate Professor, US San Diego 

Stephen Rawlings, MD, PhD

MD/PhD: New York University School of Medicine
Fellowship: Infectious Diseases
Current Position: Maine Medical Center, Infectious Diseases Physician

2014

Sarah Burgdorf, MD, PhD

MD/PhD: UC San Diego
Fellowship: Infectious Diseases
Current Position: Assistant Professor, University of Pittsburgh

Michael Lam, MD, PhD

MD/PhD: UC San Diego
Email: mtlam@health.ucsd.edu 
Fellowship: Pulmonary and Critical Care Medicine
Current Position: Assistant Professor, UC San Diego

Darius Schneider, MD, PhD (Endocrinology; Transferred to UW in 2019)

Matthew Tsai, MD, PhD

MD/PhD: University of Miami
Email: matsai@health.ucsd.edu 
Fellowship: Gastroenterology
Current Position: Assistant Professor, UC San Diego

2013

Sudeb Dalai, MD, PhD (Infectious Diseases; Transferred to Stanford)

Adam Greenbaum, MD, PhD (Hematology-Oncology; Transferred to UW)

2012

Calvin Yeang, MD, PhD

MD/PhD: State University of New York Downstate Medical Center College of Medicine
Email: cyeang@health.ucsd.edu
Fellowship: Cardiology
Current Position: Assistant Professor, UC San Diego

Kay Yeung, MD, PhD

MD/PhD: New York University School of Medicine
Email: k7yeung@health.ucsd.edu
Fellowship: Hematology/Oncology
Current Position: Assistant Clinical Professor , UC San Diego

2011

Edwin Yau, MD, PhD

MD/PhD: State University of New York, Buffalo
Fellowship: Hematology/Oncology
Current Position: Faculty, Roswell Park Comprehensive Cancer Center, Buffalo, NY

Adam Burgoyne, MD, PhD

MD/PhD: Case Western Reserve University School of Medicine
Email: aburgoyne@health.ucsd.edu
Fellowship: Hematology/Oncology
Current Position: Associate Professor, UC San Diego

2010

Jennifer Dan, MD, PhD

MD/PhD: Boston University
Email: jdan@health.ucsd.edu
Fellowship: Infectious Diseases
Current Position: Assistant Professor, UC San Diego

Aaron Miller, MD, PhD

MD/PhD: Northwestern University Feinburg School of Medicine
Email: ammiller@health.ucsd.edu
Fellowship: Hematology/Oncology
Current Position: Associate Professor, UC San Diego

2009

Lawrence Ang, MD

MD: UC San Diego
Email: lang@health.ucsd.edu
Fellowship: Cardiology
Current Position: Associate Professor, UC San Diego

Aaron Carlin, MD, PhD

MD/PhD: UC San Diego
Email: acarlin@health.ucsd.edu
Fellowship: Infectious Diseases
Current Position: Associate Professor, UC San Diego

Christopher Larson, MD, PhD

MD/PhD: University of Texas, Southwestern Medical School
Fellowship: Hematology/Oncology
Current Position: EpicentRx, La Jolla, CA (& Adjunct Faculty, UC San Diego)

2008

Brigid Boland, MD

MD: UCSF School of Medicine
Email: bboland@health.ucsd.edu
Fellowship: Gastroenterology
Current Position: Associate Professor, UC San Diego

Mary Lewinski, MD, PhD

MD/PhD: UC San Diego
Email: mlewinski@health.ucsd.edu
Fellowship: Infectious Diseases
Current Position: Associate Professor, UC San Diego

Anna Narezkina, MD, PhD

MD/PhD: Smolensk Sate Medical Academy, Russia
Email: anarezkina@health.ucsd.edu
Fellowship: Cardiology
Current Position: Associate Professor, UC San Diego

John Paul (JP) Shen, MD

MD/PhD: Washington University, St. Louis
Fellowship: Hematology/Oncology
Current Position: Faculty, University of Texas MD Anderson Cancer Center

Amir Zarrinpar, MD, PhD

MD/PhD: UC San Diego
Fellowship: Gastroenterology and Hepatology, Obesity Medicine
Current Position: Associate Professor, UC San Diego