Faculty
Division Chief
Sandra S. Osswald, M.D.
Medical School: Boston University School of Medicine, HPSP Air Force Scholarship Program, Boston, MA
Internship: Internal Medicine, Keesler USAF Medical Center, Biloxi, MS
Residency: Dermatology, San Antonio Uniformed Services Health Education Consortium (SAUSHEC), San Antonio, TX; Internal Medicine, Keesler USAF Medical Center, Biloxi, MS
Post-Doctoral Fellowship: Dermatopathology, AFIP Armed Forces Institute of Pathology, Washington, DC
Email: osswald@uthscsa.edu
Academic office: 210-450-6355
Practice: 210-450-9840
Fax No. 210-450-6092
Faculty
Emily M. Becker, M.D.
Assistant Professor
Medical School: University of Texas Health Science Center at San Antonio
Residency: Dermatology, University of Texas Health Science Center at San Antonio; Pediatric,
Children’s hospital of New york, Columbia Presbyterian, New York
Fellowship: Psoriasis Clinical Research, University of California San Francisco, San Francisco, CA;
Pediatric Dermatology, University of Texas Health Science Center at San Antonio
Email Address: beckere@uthscsa.edu
Practice: 210-450-9840
Fax No.: 210-450-6092
Elizabeth P. Chase, M.D.
Assistant Professor
Medical School: University of Mississippi School of Medicine, Jackson, MS
Residency: University of Kansas Medical Center (KUMC), Kansas City, KS
Fellowship: Geisinger Health System, Danville, PA
Email Address: chasee@uthscsa.edu
Practice: 210-450-9840
Fax No.: 210-450-6092
Robert T. Gilson, M.D.
Residency Program Director, Associate Professor
Medical School attended: University of Texas Health Science Center at Houston
Fellowship: Internal medicine, Keesler Medical Center, Mississippi
Residency: Dermatology, SAUSHEC, completed 1999. Internal medicine, Keesler completed 1991
Email Address: gilsonr@uthscsa.edu
Practice: 210-450-9840
Fax No.: 210-450-6092
Gabriella R. Rabago, PA-C
Physician Assistant
Medical School: University of Texas San Antonio, School of Health Professions, Masters in Physician Assistant Studies (MPAS)
Email Address: rabagog@uthscsa.edu
Practice: 210-450-9840
Fax No.: 210-450-6092
Holly H. Volz, M.D.
Assistant Professor
Medical School: University of Texas Health Science Center at San Antonio
Internship: Internal Medicine Preliminary, University of Texas Health Science Center at San Antonio
Residency: Dermatology, University of Texas Health Science Center at San Antonio
Email Address: volz@uthscsa.edu
Practice: 210-450-9840
Fax No.: 210-450-6092
Cross-Appointed Faculty
Tracy Lee Biediger, M.D.
Assistant Professor
Medical School: Tulane University School of Medicine, New Orleans, LA
Internship: Brook Army Medical Center, San Antonio, TX
Residency: Brook Army Medical Center, San Antonio, TX
Email: tracy.biediger@va.gov
Practice: 210-949-9248
Richard Keller, M.D.
Professor
Medical School: Louisiana State University School of Medicine, New Orleans, LA
Internship: Transitional Medicine, Brooke Army Medical Center, Ft. Sam Houston, TX
Residency: Dermatology, Brooke Army Medical Center, Ft. Sam Houston, TX
Fellowship: Mohs Micrographic Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX
Email: richard.keller4@va.gov
Practice: 210-949-9248
Eric W. Kraus, MD
Professor
Medical School: University of Texas Health Science Center at San Antonio
Internship: Dermatology, Brooke Army Medical Center, Ft. Sam Houston, TX
Residency: Rotating, Wm Beaumont Army Medical Center, El Paso, TX
Email: eric.kraus@va.gov
Practice: 210-949-9248
Jennifer Krejci-Manwaring, MD
Assistant Professor
Medical School: University of Texas Medical School at Houston
Internship: Internal Medicine, University of Texas Medical School at Houston
Residency:University of Kansas Medical Center, Kansas, KS
Fellowship: Dermatology Research, Wake Forest University School of Medicine, Winston-Salem, North Carolina, NC
Email: jennifer.krejci-manwaring@va.gov
Practice: 210-949-9248
F. Charles, Petr, Jr., MD
Assistant Professor
Medical School: University of Texas Health Science Center at San Antonio
Internship: Internal Medicine, Bexar County Hospital District, San Antonio, TX
Residency: Bexar County Hospital District & University of Texas Affiliated Hospitals, San Antonio, TX
Email: frank.petr@va.gov
Practice: 210-949-9248
Richard Phillip Usatine, M.D.
Professor
Medical School: Columbia University College of Physicians and Surgeons, New York, NY
Internship: the University of California at Los Angeles (UCLA) Family Medicine
Residency: the University of California at Los Angeles (UCLA) Family Medicine
Fellowship: Medical Education, UCLA
Email: usatine@uthscsa.edu
Academic Office: 210-358-3200
Practice: 210-358-3650