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Research, engineering, publications, awards, and service.
Basics
| Name | Abhishek Singh Dhadwal |
| Label | PhD Student, Health Systems Research | University of Toronto & CAMH |
| adhadwal.acad@gmail.com | |
| Url | https://abhisheksinghdhadwal.github.io |
| Summary | PhD student in Health Systems Research at the University of Toronto's Institute of Health Policy, Management and Evaluation, based in the Digital Mental Health Lab at CAMH. I study sycophancy in large language models used for mental health support and the point where supportive agreement turns into unsafe compliance, with a focus on measuring and reducing it. My master's research at Arizona State University focused on auditable clinical decision support and safer sharing of sensitive health data. |
Work
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2026.09 - Present Doctoral Researcher
Centre for Addiction and Mental Health (CAMH) - Digital Mental Health Lab
Doctoral research on sycophancy and safety in large language models used for mental health support.
- LLM evaluation
- AI safety
- Digital mental health
- Psychometrics and IRT
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2024.08 - 2026.05 Graduate Student Researcher, Biomedical Informatics
Arizona State University - SHARES Lab
Built and evaluated privacy-preserving clinical decision support tools for sensitive health data as part of a NIDA-backed research initiative.
- Built an auditable FHIR and CQL consent engine for granular data sharing under 42 CFR Part 2
- Benchmarked 11,519 synthetic patient records at about 18,900 FHIR resources per second
- Co-authored an Applied Clinical Informatics paper and an AMIA 2025 systems demonstration
- Worked with clinicians, informaticians, and policy experts to turn research prototypes into usable tools
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2023.07 - 2024.06 Software Engineer, Investment Banking Technology
Credit Suisse Services AG
Built and supported global order management and compliance systems for stocks, futures, and options across EMEA and US markets.
- Software Development
- C#
- Order Management Systems
- Database Management
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2021.07 - 2023.06 Technical Analyst, Investment Banking
Credit Suisse Business Analytics
Designed and improved daily C# ETL pipelines for global trading data, cutting processing time by 70% and making new jobs faster to deliver.
- Data Analysis
- ETL
- SQL
- C#
-
2020.05 - 2020.06 Technology Intern, International Wealth Management
Credit Suisse
Worked on CI and DevOps improvements for International Wealth Management, including load balancer and OpenShift cluster deployments.
- OpenShift
- CI/CD
- Load Balancers
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2020.01 - 2022.01 Undergraduate Researcher, Computational Psychiatry
Visvesvaraya National Institute of Technology, Nagpur
Developed a multimodal depression-detection pipeline using smartphone, audio, and visual signals. Improved data-collection memory efficiency by 90% and co-authored two peer-reviewed papers.
- Quantitative Research
- Multimodal Machine Learning
- Digital Healthcare
- Python
-
2019.05 - 2019.07 Software Developer, Google Summer of Code 2019
The Apache Software Foundation
Implemented and tested pseudorandom number generators for Apache Commons RNG using Java, Maven, JUnit, and JMH.
- PRNG
- Java
-
2018.05 - 2018.06 Internship Trainee, Central Technical Services
Reliance Infrastructure (now Adani)
Worked with the central technology team to streamline web application development using JavaScript and the .NET Framework.
- JavaScript
- .NET Framework
- Web Development
Volunteer
-
2026.01 - Present Member, AI in Public Health Working Group
NYU x Humane Intelligence
Contributing to interdisciplinary discussions on responsible AI in public health.
- Public Health
- Responsible AI
- Working Group
-
2025.01 - Present Peer Reviewer
International Journal of Human-Computer Studies (Elsevier)
Reviewed manuscripts for IJHCS.
- Peer Review
-
2025.01 - Present Peer Reviewer
NeurIPS Workshop on Time Series for Health (TS4H)
Reviewed submissions for TS4H workshop.
- Peer Review
-
2025.01 - Present Elemental Member
American Association for the Advancement of Science (AAAS) - Neuroscience
AAAS membership in Neuroscience section.
- Membership
-
2025.01 - Present Student Member
American Medical Informatics Association (AMIA)
Professional student membership in AMIA.
- Membership
-
2025.01 - 2025.12 Subgroup Lead, AMIA Student Working Group
American Medical Informatics Association (AMIA)
Led the Trust, Transparency and Justice in Data Use subgroup for the AMIA 2025 Year in Review keynote, reviewing and grouping more than 200 articles.
- Literature Review
- Research Synthesis
- AMIA Year in Review
-
2022.01 - 2023.12 Career Guidance Outreach
Antarang Foundation
Led career guidance initiatives for at-risk youth in technology careers.
- Outreach
- Education
-
2022.01 - 2023.12 STEM Mentorship & Diversity Advocacy
Credit Suisse
Co-founded a mentorship program for underrepresented STEM professionals.
- Mentorship
- Diversity
- Community
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2021.01 - 2022.12 Technical Advocacy & Content
Credit Suisse
Led engagement for global coding challenges and edited the TA newsletter.
- Content
- Advocacy
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2020.01 - 2022.01 Student Tutor
Visvesvaraya National Institute of Technology, Nagpur
Taught computing fundamentals and data structures to underserved students.
- Teaching
- Computing Fundamentals
- Data Structures
Education
-
2026.09 - Present Toronto, Ontario, Canada
Doctor of Philosophy
University of Toronto
Health Systems Research, Institute of Health Policy, Management and Evaluation (Dalla Lana School of Public Health)
- Research focus: sycophancy and safety in LLMs for mental health support
- Based at the CAMH Digital Mental Health Lab
- Canada Impact+ Research Training Doctoral Award (CIRTA)
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2024.08 - 2026.05 Tempe, Arizona
MS (Thesis)
Arizona State University
Computer Science (Biomedical Informatics)
- Thesis: An Interdisciplinary Framework for High-Throughput, Deterministic Segmentation of Sensitive Health Records in HL7 FHIR
- Herbold Foundation Scholar, 2025
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2023.07 - 2024.06 Bangalore, India
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2017.07 - 2021.05 Maharashtra, India
Bachelors (B.Tech)
Visvesvaraya National Institute of Technology, Nagpur
Computer Science and Engineering
- Data Structures and Program Design
- Software Engineering
- Operating Systems
- Neuro-Fuzzy Techniques
- Database Management Systems
- Introduction to Object Oriented Methodology
- Design and Analysis of Algorithms
- Theory of Computation
Awards
- 2026.09.01
Canada Impact+ Research Training Doctoral Award (CIRTA)
University of Toronto
Federally funded doctoral award supporting my PhD research at the University of Toronto.
- 2026.04.01
1st Place, ZETIC Melange On-Device AI Hackathon
ZETIC
Won for SumiSense, a privacy-first behavioral health assistant that runs on-device.
- 2025.01.01
Herbold Foundation Scholar
Herbold Foundation
A $10,000 award recognizing academic achievement and research potential in computer science.
- 2025.01.01
Graduate Student Resilience Award
ASU Graduate Student Government
A $500 award recognizing resilience and contributions to the graduate community.
- 2022.01.01
RAVE Awards (2)
Credit Suisse
Recognizing Value and Excellence for partnership, accountability, and project contributions.
- 2017.01.01
Ryan Star Award for Academic Excellence
Ryan Group of Institutions
Awarded for outstanding academic performance.
Certificates
| Technical AI Safety | ||
| BlueDot Impact | 2026 |
| HIPAA for ASU Researchers | ||
| Arizona State University | 2024 |
| Machine Learning | ||
| Stanford University | 2019-02-17 |
Publications
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2026.10.08 Psychiatric and Substance-Use History Changes LLM Recommendations in Counterfactual Cases derived from MIMIC-IV Data
Poster, NEURONTO 2026, Toronto
Counterfactual audit of 14 language models on 450 MIMIC-IV emergency cases, testing whether psychiatric and substance-use history changes clinical recommendations.
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2026.10.01 A privacy-preserving framework for continuous mobile authentication using digital twins and multimodal biometrics
PeerJ Computer Science, 12, e4104
Proposes continuous mobile authentication using digital twins and multiple biometric signals while limiting raw-data exposure.
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2026.05.01 An Interdisciplinary Framework for High-Throughput, Deterministic Segmentation of Sensitive Health Records in HL7 FHIR
Arizona State University master's thesis, ProQuest publication 32676530
Presents a practical framework for auditable, high-throughput segmentation of sensitive FHIR records.
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2026.05.01 Assessing the Effectiveness and Scalability of Fast Healthcare Interoperability Resource-Based Granular Data Segmentation Technology
Applied Clinical Informatics, 17(3), 423-433
Evaluates the accuracy, speed, scalability, and cost of SHARES across 11,519 synthetic patient records.
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2025.12.01 4 Hz, 4 Pages: Just-in-Time Substance Use Relapse Risk Detection from Wearable Time Series Data
NeurIPS 2025 Workshop on Learning from Time Series for Health
Explores just-in-time relapse-risk detection from high-frequency wearable signals.
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2025.11.01 FHIR-Based Visual Simulation of Consent-Driven Granular Data Segmentation
AMIA Annual Symposium (Systems Demonstration)
Demonstration of SHARES consent-driven segmentation and visualization for privacy-preserving CDS.
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2025.01.01 FHIR-Based Data Segmentation for Substance Use Disorders: Current Landscape and the Promise of Large Language Models
The Medical Tech Magazine
An invited overview of sensitive-data segmentation, FHIR, and the potential role of language models in substance use care.
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2023.04.05 Multimodal Depression Detection: Using Fusion Strategies with Smart Phone Usage and Audio-visual Behavior
International Journal on Artificial Intelligence Tools
Studies early and late fusion of smartphone and audio-visual signals for depression detection, reaching 89% accuracy with late fusion.
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2022.04.11 A novel multi-modal depression detection approach based on mobile crowdsensing and task-based mechanisms
Multimedia Tools and Applications
Combines smartphone, audio, and visual signals in an end-to-end depression-detection pipeline that reached 86% accuracy.
Skills
| AI Safety & Evaluation | |
| LLM Evaluation | |
| Sycophancy | |
| Benchmark Design | |
| Psychometrics and IRT | |
| Human-Centered Health AI |
| FHIR & CDS | |
| FHIR R4/R5 | |
| CQL | |
| CDS Hooks | |
| HAPI-FHIR | |
| Terminology/ValueSets | |
| Consent/Segmentation |
| Python | |
| Machine Learning | |
| Data Analysis | |
| Artificial Intelligence | |
| Deep Learning | |
| Automation | |
| On-Device AI |
| C# | |
| .NET Framework | |
| .NET Core | |
| WinForms Development | |
| Software Development |
| Java | |
| Core Java | |
| Maven | |
| JUnit | |
| JMH |
| DevOps | |
| Jenkins | |
| CI/CD | |
| Load Balancers | |
| OpenShift |
| SQL | |
| Sybase | |
| Oracle | |
| Database Management | |
| ETL |
| Data Visualization | |
| Tableau | |
| Pandas | |
| Data Analysis | |
| Reporting |
| Computer Vision | |
| Image Processing | |
| Deep Learning | |
| Feature Segmentation | |
| Object Detection |
| Software Development | |
| Full-Stack Development | |
| Application Development | |
| Web Development | |
| Software Design |
| Research | |
| Quantitative Research | |
| Computational Psychiatry | |
| Clinical Informatics | |
| Multimodal Methods | |
| Scientific Writing |
| Machine Learning | |
| Predictive Modeling | |
| Data Mining | |
| Feature Extraction | |
| Algorithm Development |
Languages
| English | |
| Full professional proficiency |
| Hindi | |
| Native speaker |
| French | |
| Beginner |
Projects
- 2026.04 - Present
SumiSense - On-Device Behavioral Health Assistant
Privacy-first iOS assistant for daily reflection, longitudinal pattern detection, and anonymized clinician sharing.
- 1st place at the ZETIC Melange On-Device AI Hackathon
- Qwen3-4B
- Chronos
- SwiftUI
- 2025.08 - Present
SHARES Consent Engine (FHIR + CQL)
Auditable FHIR and CQL consent engine for granular sharing of sensitive health data under 42 CFR Part 2.
- Consent thresholds
- Sensitivity labeling
- CDS Hooks
- HAPI-FHIR integration
- 2025.05 - Present
FHIRLight: Clinician-Centered FHIR Visualization
In-browser FHIR visualization for patient timelines, clinical risk scores, cohort views, and consent previews.
- TypeScript
- D3.js
- FHIR
- Clinician survey (N=24)
- 2025.08 - Present
Granular Segmentation Benchmark on Synthetic FHIR Cohort
Evaluation of SHARES across 11,519 synthetic patients, 197.6 million FHIR resources, and 11 confidentiality thresholds.
- 18,909 resources per second
- Under one cent per full run
- Physician-reviewed classifications
- 2025.06 - Present
HAPI-FHIR Server + CQL Evaluation
HAPI-FHIR main and terminology servers to support Library/$evaluate workflows for consent rules.
- HAPI-FHIR
- CQL
- Terminology
- 2025.03 - Present
SHARES-CLI
CLI utilities to encode CQL to base64, create FHIR bundles, and POST to HAPI-FHIR endpoints.
- CQL
- FHIR
- CLI
- 2025.02 - Present
Sharpnr - AI-Powered Academic Assistant
Privacy-first academic assistant that brings Canvas, Slack, and Calendar updates into one planning and study workflow.
- 3rd place at the ASU Agentic AI Hackathon
- FastAPI
- React/Next.js
- MongoDB
- 2024.11 - Present
MRI Style Transfer with CycleGAN
Generates T2-weighted MRI from T1 scans to augment data and support diagnostic accuracy.
- TensorFlow
- CycleGAN
- Medical Imaging
- 2020.07 - 2021.05
Indian Sign Language Translator
Open-source Indian Sign Language translator designed for near-real-time use across changing backgrounds and lighting conditions.
- YOLO-v3 hand detection
- Sequence recognition
- Open-source dataset
- More than 100 downloads per year
- 2019.08 - 2019.09
Genetic Algorithm Implementation
Notebook demonstration of a genetic algorithm solving Travelling Salesman Problem instances with about 50 nodes.
- Fitness functions
- Crossover
- Mutation
- Convergence visualization
- 2019.10 - 2019.11
Comparison of Clustering Techniques
Compared K-Means, BIRCH, and agglomerative clustering on college data to study how well each method separated public and private institutions.
- K-Means
- BIRCH
- Agglomerative Clustering
- 2019.12 - 2019.12
Feature Segmentation via Multi-Res-U-Net Masking
Tested MultiResUNet, an architecture developed for medical imaging, on facial-feature segmentation using CelebAMask-HQ.
- MultiResUNet
- Facial Feature Segmentation
- CelebAMaskHQ dataset
- 2020.01 - 2020.02
Resource Allocation within a Multi-Client Server
Built a multi-client resource manager with wait queues and locking to keep concurrent allocations synchronized.
- Resource Allocation
- Multi-Client Server
- Wait-list Queue
- 2021.02 - 2021.02
Kerberos Protocol Implementation
Implemented Kerberos-style authentication and ticket generation between clients and services, with encrypted communication channels.
- Kerberos Protocol
- User Authentication
- Key-Dependent Additive Cipher
- 2018.08 - 2018.09
Command Shell Implementation
Built a Linux shell in C with process control, multiple-command execution, redirection, signal handling, and error reporting.
- OS System Calls
- Linux Commands
- Redirection
- 2020.04 - 2020.04
Logistic Regression Classifier for Movie Reviews
Built and tuned a logistic-regression sentiment classifier for IMDB reviews using scikit-learn and NLTK.
- Logistic Regression
- IMDB Dataset
- Hyperparameter Tuning