IDS Patient Care and Clinical Services

Vaccine and Infectious Disease Division

Patient Care & Clinical Services

infectious disease consult

The Fred Hutch Infectious Disease specialists provides consult services at the Seattle Cancer Care Alliance (SCCA) to our SCCA patients. Faculty physicians work closely with hematologists and oncologists on treatment plans and oversee quality improvement initiatives related to infectious diseases, which include developing standard practice and other clinical care guidelines in infection control and antibiotics management.

Services are provided at both inpatient (University of Washington Medical Center) and outpatient settings (SCCA outpatient facility located on the Fred Hutch campus).


  • Partner with hematologists/oncologists on treatment plans
  • Oversee quality exercises related to infectious diseases
  • Develop standard practices and other clinical care guidelines in infection prevention control
  • Conduct pre-transplant evaluations
  • Manage patients' follow-up visits, including antibiotics management
  • Handle long-term follow-up plans

Patient appointments are limited to current SCCA patients and require a referral from your SCCA primary provider. 

Consult Team

Pooja Bhattacharyya

Pooja Bhattacharyya, PA-C

With a background in hematopoetic cell transplant, Bhattacharyya is applying that knowledge to working with patients with infectious disease issues while continuing to provide thorough and compassionate care.

Michael J. Boeckh, MD
Dr. Boeckh studies infections in the immunocompromised host especially diagnosis, prevention and treatment of CMV, VZV, BK virus, adenovirus, and respiratory virus infections.

Corey Casper, MD, MPH

Corey Casper, MD, MPH
Dr. Casper's focus is on the transmission, progression and treatment of infection associated cancers.

Larry Corey, MD
Dr. Corey's focus is in treating and diagnosing infectious diseases of the immunocompromised patient.


David N. Fredricks, MD
Dr. Fredricks' focus is on the use of molecular methods for the diagnosis of bacterial and fungal infections.

Adam Geballe, MD
Dr. Geballe's focus is on the interactions between the cellular antiviral protein kinase R (PKR) and viral PKR antagonists expressed by human cytomegalovirus, and vaccinia virus.

Joshua A. Hill, MD
Dr. Hill specializes in treating viral infections in immunocompromised cancer patients.

Catherine Liu, MD

Dr. Liu focuses on improving patient outcomes through antimicrobial stewardship and outpatient parenteral antimicrobial therapy programs by promoting appropriate use of antibiotics and optimizing transitions of care.

Debra Mattson, PA-C

Debra Mattson, PA-C
As a physician assistant, Mattson provides care with kindness and respect while having a thorough knowledge of the patient’s infectious disease issues.

Julie McElrath, MD, PhD

Dr. McElrath's research centers on developing an HIV vaccine and investigates the complex relationships between HIV and the immune system.

Steven Pergam, MD, MPH
Dr. Pergam's focus is in the area of CMV and gastrointestinal systems in transplant and cancer patients.

Warren Phipps, MD, MPH
Dr. Phipps is interested in human herpesvirus-8 (HHV-8)virology and pathogenesis of Karposi sarcoma (KS), the most common HIV-associated malignancy worldwide..


Paul Pottinger, MD, DTM&H
Dr. Pottinger is interested in ways to improve the use of anti-infective medications for the complex and heterogeneous patient population in the field of Antimicrobial Stewardship.

Joshua Schiffer, MD, MSc
Dr. Schiffer is interested in describing the quantitative and dynamical features of human pathogens and immune responses.

Anna Wald, MD, MPH
Dr. Wald is interested in epidemiology, natural history, therapy, and prevention of HSV and other herpesvirus infections, including the interactions between HSV and HIV.

Leah Yoke, PA-C

Leah Yoke, PA-C
As a physician assistant, Yokes' goal is to create a space where patients and their loved ones feel comfortable enough to honestly discuss their goals of care from an Infectious Disease standpoint. She strives to provide evidence-based, compassionate, unbiased care for every patient she sees.