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Fellows work with research and clinical faculty members at UCSF—a world-renowned institution exclusively focused on health sciences.

Current postdoctoral scholars and fellows



Research interests

Anita Chaphekar, DO

Clinical Pharmacology Fellow

[email protected]

Psilocybin-assisted psychotherapy as a novel treatment in anorexia nervosa


Ryo Miyakawa, MD, MPH

Clinical Pharmacology Fellow

[email protected]

Improving dosing strategy of antimycobacterial medications.

Dvijen Purohit, PharmD, MS

Clinical Pharmacology Fellow

[email protected]
Apply computational approaches and model-based drug development to inform chemotherapeutic management of tuberculosis in patients globally.

Andrew Riselli, PharmD

Clinical Pharmacology Fellow

[email protected]
Using biomarkers to characterize transporter-mediated drug-drug interactions and polymorphisms in membrane transporter genes; physiologically-based pharmacokinetic modeling

Maureen Shin, PharmD, MS

Clinical Pharmacology Fellow

[email protected]

Dose optimization via population pharmacokinetic (PK) modeling in pediatric infectious disease and oncology patients

Markus Ville Tiitto, PharmD, PhD

Clinical Pharmacology Fellow

[email protected]

Effect of parenteral drug administration absorption rates on systemic absorption (AUC)

Michelle Wang, PharmD, PhD

Clinical Pharmacology Fellow

[email protected]

Using novel artificial intelligence computational methods to study real-world data to improve the use of novel therapeutics. 

Former fellows

Who, Years mentored


Main research

Folagbayi Arowolo, PhD
July 2019 - June 2021

  precision medicine and optimization of drug dosing regimens using mass spectrometry

Jordan Brooks, PharmD

July 2021 - April 2023

Pharmacometrician / Data Scientist at InsightRX Developing computational models to improve medication use in children, translating models into clinical applications that improve efficacy and minimize toxicity from medications used in pediatric hematopoietic stem cell transplantation.
Isaac Cohen PharmD
July 2018 - May 2020
  Population PK modeling of antibiotics, retrospective analysis of postoperative pain management, and advising psychiatric drug development

Amelia Deitchman PharmD, PhD
January 2018 - January 2020

Assistant Professor, UCSF Clinical Pharmacy clinical and translational pharmacology and pharmacometrics to understand drug action and variability to improve patient outcomes and streamline drug development in the setting of infectious disease, specifically tuberculosis, HIV, and malaria
Elizabeth Ennis, PhD Pharmacologist, U.S. Food and Drug Administration

genetic determinants of metformin pharmacokinetics, and drug-transporter interactions

Briana Fitch, PhD
July 2019- June 2021
  Therapeutic drug monitoring of anticoagulants, clinical applications of mass spectrometry, and prognostic value of inflammatory markers in infectious disease and cancer.
Priya Jayachandran, PharmD, MSE
July 2017- June 2020

Pharmacometrician at Pfizer

pharmacokinetic / pharmacodynamic modeling of drug response, infectious diseases, pediatrics, study design, global health

Eunice Lee, PhD Fellow, National Institutes of Health

environmental and molecular epidemiology, gene-environment interactions, biomarkers of exposure to air pollution, drug response

Kendra Radtke, PharmD

July 2021 - June 2023

  Apply novel computational approaches to inform dosing and therapeutic management of infectious diseases in special populations such as children and pregnant women.
Lesly-Anne Samedy, PharmD, PhD, MS
July 2017-June 2020

Program Officer, National Institutes of Health (NICHD)

pharmacogenetics and epigenetic factors in the development of asthma in admixed populations; pharmacodynamics, pharmacokinetics, and drug response; genetic variant associations; health disparities

Erika Wallender, MD, MPH


pharmacokinetic and pharmacodynamic modeling to optimize antimalarial use for malaria treatment and prevention in children in Uganda

Jonathan Witonsky, MD, MPH
July 2019-June 2020
UCSF Pediatric Allergy and Immunology Clinical Instructor and Clinical Research Informatics Postdoctoral Research Fellow genetic and epigenetic factors in the development of asthma, pulmonary function testing in admixed populations, and health disparities in clinical research
Eric Wolford, MD, MPH
July 2019-March 2021
  Genetic and microbial factors associated with immune-mediated diseases including asthma in children. Interests include improving disparities in research and clinical care for minority populations, with an aim to make personalized medicine available to all population

Yasmine White, MD

July 2020 - June 2023

  Pharmaceuticals for birth asphyxia, pharmacokinetic/pharmacodynamic modeling in neonates
Yu “Jada” Zhang, MD, PhD
July 2019-March 2021