Fiona Gispen, MD, MS

HIV Primary Care Physician & Infectious Diseases Researcher

Weill Cornell Medicine | NewYork-Presbyterian

I am an Assistant Professor of Medicine at Weill Cornell Medicine, where I provide HIV primary care and infectious diseases care.

My research focuses on improving care for people with infectious diseases and substance use disorders. I study how treatment options and health systems shape access to care, treatment completion, and outcomes.

Clinical Care

My approach to care

I provide HIV primary care and general infectious diseases care for adults. My approach emphasizes evidence-based prevention and treatment, clear explanations, and shared decision-making. I consider mental health, substance use, and social circumstances alongside medical needs, and work with patients to develop practical plans that fit their lives.

Who I Care For

  • Adults living with HIV
  • Patients seeking preventive sexual health care (PrEP)
  • Individuals with complex infectious diseases
  • Patients navigating chronic conditions alongside infection

Practice Information

I practice at the Center for Special Studies at Weill Cornell Medicine in New York City.

I am not currently accepting new patients, but please contact the office directly through Weill Cornell Medicine to see one of my colleagues.

Weill Cornell practice information

Research

My research examines how to make effective treatment more accessible and practical for people with infectious diseases, particularly those affected by substance use. My work spans health services research and quality improvement, with a focus on care during hospitalization and after discharge.

Cs the Day: Hepatitis C Treatment During Hospitalization

Hospitalization offers an opportunity to connect people with hepatitis C to treatment, particularly when outpatient follow-up is difficult. Cs the Day is a quality improvement initiative at NewYork-Presbyterian/Weill Cornell Medical Center and NewYork-Presbyterian Lower Manhattan Hospital that integrates hepatitis C assessment and treatment planning into hospital care. The project aims to reduce missed opportunities for treatment and improve continuity after discharge.

Supported by a grant from the NewYork-Presbyterian Dalio Center for Health Justice.

Explore Cs the Day & project materials

Antibiotic Treatment After Patient-Directed Discharge

People hospitalized with drug use-associated infective endocarditis may leave before the recommended course of treatment is complete. Using Medicaid claims data, this project examines outpatient antibiotic treatment and subsequent healthcare use after patient-directed discharge. The goal is to inform practical approaches to supporting patients after they leave the hospital.

Supported by a CHERISH pilot grant.

Long-Acting Antibiotics in the Emergency Department

Planned research / work in progress

I am developing a research program examining the potential role of long-acting antibiotics in emergency department care. This work will explore how treatment delivery can better meet patients’ needs.

Supported by a KL2 Training Grant through the Weill Cornell Clinical and Translational Science Center.

My work draws on administrative claims analysis, causal inference, and quality improvement methods to study treatment patterns and outcomes in routine care.

Selected Work

Collaborations

I welcome collaboration in:

  • Infectious diseases outcomes research
  • Addiction and infection overlap
  • Analysis of large administrative datasets

For research inquiries, please use the contact form below.

About

Background

My training includes:

  • BA & MS - Stanford
  • MD - Johns Hopkins
  • Psychiatry Internship - MGH/McLean
  • Internal Medicine Residency - MGH
  • Infectious Diseases Fellowship - Weill Cornell

Experience

  • Assistant Professor of Medicine (Hospitalist), Vanderbilt University Medical Center (2020-2022)
  • Assistant Professor of Medicine, Division of Infectious Diseases, Weill Cornell Medicine (current)

Outside of Medicine

Outside of work, I play classical piano, swim, practice aerial silks, and am a certified yoga instructor. These pursuits bring joy and community, and remind me that progress is not linear and that no state is permanent.

Contact

For research collaborations and professional inquiries.

For professional inquiries only. Please do not submit medical questions or personal medical information through this form.

Patients: please use Weill Cornell practice information to contact the clinical team.