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Infectious Diseases Fellowship (Arizona)

Department and Faculty


Division of Infectious diseases faculty and staff at Mayo Clinic in Phoenix

The Division of Infectious Diseases at Mayo Clinic's campus in Arizona is staffed by specialists dedicated to patient care, research, and education in their daily practices.

Some current areas of research being pursued by our faculty members with national and international recognition include:

  • Coccidioidomycosis
  • Fecal microbiota transplantation
  • Endocarditis
  • Cardiovascular device infections
  • Viral respiratory infections
  • Immunocompromised host infections
  • Transplant-associated infections
  • Basidiobolomycosis

Clinical laboratories

We also have an on-site, full-fledged state-of-the-art microbiology and serology laboratory led by Thomas E. Grys, Ph.D., in close collaboration with the world-famous Mayo Clinic Laboratories in Rochester, Minnesota. During inpatient rotations, you will lead weekly microbiology rounds during which stained specimens, cultures, and other pertinent samples from patients on the consult service are reviewed and discussed in detail.

Microbiology laboratory staff also challenge the team each week during rounds with "unknowns" — a very popular segment wherein culture plates, smear photographs, and other specimens are demonstrated while faculty and fellows compete to arrive at the correct pathogen. Others present at microbiology rounds, including the faculty member on the inpatient service, Dr. Grys, medical residents, students, lab technicians, and the lab supervisor.


Our faculty members have extensive experience in training medical students, residents, and fellows. They have been actively involved in clinical research in diverse areas of infectious diseases, resulting in numerous seminal publications over the years. Residents, students, and fellows have vastly benefited from ongoing research collaborations, publications, and mentorship by our faculty. 

  1. Robert Orenstein, D.O., FIDSA, FACP, AAHIVS 
    Chair, Division of Infectious Diseases
    Editor-in-Chief, The Journal of the American Osteopathic Association
    Associate Professor of Medicine
  2. Holenarasipur (HR) Vikram, M.D., FACP, FIDSA
    Vice Chair, Division of Infectious Diseases
    Program Director, Infectious Diseases Fellowship
    Program Director, Chief Medical Residency Fellowship
    Professor of Medicine
  3. Janis Blair, M.D.
    Program Director, Internal Medicine Residency
    Professor of Medicine
  4. Maria (Teresa) Seville, M.D.
    Chair, Infection Prevention and Control Subcommittee
    Assistant Professor of Medicine
  5. Roberto Patron, M.D.
    Member, Clinical Research Subcommittee
    Assistant Professor of Medicine
  6. Juan Gea Banacloche, M.D.
    Director, Transplant Infectious Diseases
  7. Neal Ampel, M.D.
    Consultant (supplemental)

In addition to eight faculty members, the division also includes an infectious diseases (ID) pharmacist, a nurse practitioner, and two nurses.

  • Antimicrobial Stewardship Program. The Arizona campus of Mayo Clinic has an active ASP that is accomplished in conjunction with ID faculty and an ID pharmacist. You have the opportunity to assist, enforce, and participate in research endeavors.
  • Mayo Clinic Outpatient Parenteral Antimicrobial Therapy (MOPAT) program. Mark W. Burns, C.N.P., D.N.P., N.P., M.S.,, is primarily responsible for our award-winning MOPAT Program which has been a key component of our practice for careful monitoring and follow-up of patients on parenteral antimicrobial therapy. As a fellow, you play a key role in this process for their inpatient consultations when discharged on such antimicrobials.

Advisers and mentors

Faculty advisers are available to provide comprehensive educational advice and personal support. You meet with your adviser periodically throughout the program to review your progress and career goals, and ensure that your educational needs are being met. Your adviser may serve as a contact point for introducing you and your family to the Phoenix metropolitan area and the Mayo Clinic system.

Visiting professors

Many prominent professors visit Mayo Clinic each year. They present their work during lectures, participate in hospital rounds and have informal discussions with trainees. You are encouraged to take full advantage of these educational opportunities.