MedGemma 1.5 Technical Report

UCLA's official profile says Charles Tseng-Chun Lau is an HS Clinical Professor of Radiological Sciences, a cardiothoracic radiologist at the VA Greater Los Angeles Healthcare System, and has worked on assignment at Google since 2019 in artificial intelligence.

Works on information extraction, tabular data, and NLP for healthcare, and previously completed an MS in Robotics at Carnegie Mellon University.

Anil Palepu is a research scientist at Google Research working on LLM-based systems for medical and biomedical applications, including the AMIE project. Public sources also show a 2025 PhD from Harvard-MIT Health Sciences and Technology and earlier biomedical engineering degrees from Johns Hopkins.

Chunjong "CJ" Park says he works at the intersection of multimodal LLMs and health at Google DeepMind, after a Ph.D. in computer science and engineering from the University of Washington.

Bashir Sadjad's public site says he is a software engineer at Google focused on healthcare data infrastructure; his public resume also lists long-running Google work including Cloud Healthcare efforts.

Richa Tiwari is a program manager in the Health AI team under Google Research, where she leads research implementation and deployment of AI solutions in healthcare in the APAC region. She has a Ph.D. in Molecular Biology from the University of Texas at Austin and a B.S. in Biology from Brandeis University.

Yun Liu is a senior staff research scientist at Google Research whose official profile describes work on machine learning across pathology, ophthalmology, radiology, dermatology, and other medical applications.

Stanford Medicine lists David Steiner as an adjunct clinical assistant professor in pathology with research interests in somatic mutations, aging, and cancer. He is also listed as an author of the MedGemma 1.5 Technical Report.

Public Google sources describe Joelle Barral as a senior research leader at Google DeepMind in Paris. Institutional biographies also note earlier work at Verily and HeartVista and degrees from Ecole Polytechnique and Stanford.

Works on deep learning, medical imaging, and medically tuned LLM applications to improve patient outcomes.

Sunny Virmani is a product manager with Google Health focused on product development and global marketing of medical imaging technologies, and is listed as a coauthor of the MedGemma 1.5 Technical Report.

Andrew Sellergren's public pages identify him as a software engineer at Google, and his Google Research profile shows publications in health AI, pathology, and medical imaging.

Google's public materials identify Avinatan Hassidim as VP Research at Google Research. His Google Research profile covers algorithms, economics and electronic commerce, and machine intelligence.

Yossi Matias leads Google Research and is publicly associated with work spanning foundational ML, health AI, generative AI, and large-scale data systems.

Researches multimodal foundation models and evaluation for healthcare, working with James Zou after prior research engineering work in Nigam Shah's lab.

Google Research posts in January and March 2026 identify Fereshteh Mahvar as a software engineer working on MedGemma and related health AI releases.

Google Research's people page describes Tris Warkentin as a Product Management Director at Google DeepMind who previously led product efforts for Google Brain and TensorFlow tooling.

Katherine Chou focuses on technologies that improve health outcomes and remove friction in care delivery. Public speaker materials describe product leadership experience across Google X, Verily, and Google Research.

Public sources list Kat Black as "Labs Strategy & Operations, Senior PgM" on a Google I/O speaker page and as a coauthor on the MedGemma 1.5 Technical Report.

Yong Cheng has an official Google Research people page with publications in machine intelligence, machine translation, and natural language processing, and is a coauthor of the MedGemma 1.5 technical report.

Public sources identify Can Kirmizibayrak as a coauthor on Health AI Developer Foundations and MedGemma 1.5, and DBLP lists earlier publications in medical data visualization and surgical imaging.

Google's public research directory lists Tao Tu with publications in health and bioscience, machine intelligence, and natural language processing, including MedGemma-related work.

Public workshop materials list Madhuram Jajoo as a Software Engineer on Open Health Stack and Health AI at Google, and as a coauthor of the MedGemma 1.5 technical report.

Daniel Golden is publicly credited by Google Research as an engineering manager on MedGemma and related Health AI Developer Foundations work.

Canonical link

Lau, Charles

Gao, Chufan

Palepu, Anil

Park, Chunjong

Sadjad, Bashir

Tiwari, Richa

Liu, Yun

Steiner, David F.

Barral, Joelle

Webster, Dale

Virmani, Sunny

Sellergren, Andrew

Hassidim, Avinatan

Matias, Yossi

Thapa, Rahul

Mahvar, Fereshteh

Warkentin, Tris

Chou, Katherine

Black, Kat

Cheng, Yong

Kirmizibayrak, Can

Tu, Tao

Jajoo, Madhuram

Golden, Daniel