Parent Page: Academic Departments id: 22046 Active Page: Faculty - Staffid:22079

Faculty and Staff


Roy Zhang, MD

Roy R. Zhang, MD

Assistant Professor of Pathology

The University of Oklahoma Health Sciences Center
Presbyterian Tower
Lower Level, Pathology Suite
700 N.E. 13th St. 
Oklahoma City, OK 73104-5069

405-271-2422, x51794


  • Beijing Medical University
    School of Medicine
    Beijing, China
    MD, 1987
  • People's Teaching Hospital
    Beijing Medical University
    Beijing, China
    Surgical Residency, 1987-1992


  • University Hospital
    Department of Pathology
    SUNY at Stony Brook
    Stony Brook, NY
    Pathology Residency, 1998-2002
  • Armed Forces Institute of Pathology
    Department of Gynecology/Breast Pathology
    Washington, DC
    Breast Pathology Fellowship, 2002-2003
  • Yale-New Haven Hospital
    Yale University School of Medicine
    New Haven, CT
    Gynecologic Pathology Fellowship, 2003-2004


  • American Medical Association
  • College of American Pathologists

Select Publications:

  1. Zhou J, Zhang S, Xie L, Liu P, Xie F, Wu J, Cao J, Ding WQ. Overexpression of DNA polymerase iota (Polι) in esophageal squamous cell carcinoma. Cancer Sci 2012 Aug;103(8):1574-9. PMID: 22509890.

  2. Wentzensen N, Swartz L, Zuna RE, Smith KM, Mathews C, Gold M, Allen RA, Zhang R, Dunn ST, Walker J, Schiffman M: Performance of p16/Ki-67 immunostaining to detect cervical cancer precursors in a colposcopy referral population. Clin Cancer Res 1 Aug 2012;18(15):4154-4162. 

  3. Koshiol J, Dunn ST, Walker JL, Zuna RE, Schiffman M, Sherman ME, Gold MA, Allen RA, Zhang R, Wang S, Wentzensen N: Reproducibility of linear array for human papillomavirus genotyping. J Clin Microbiol. 2013;51(2):625-8.

  4. Wentzensen N, Walker J, Schiffman M, Yang HP, Zuna RE, Dunn ST, Allen RA, Zhang R, Sherman M, Gold MA, Wang SS: Heterogeneity of high grade cervical intraepithelial neoplasia related to HPV16: Implications for natural history and management. Int J Cancer. Jan 2013;132(1):148-54.

  5. Luhn P, Walker J, Schiffman M, Zuna RE, Dunn ST, Gold MA, Smith K, Mathews C, Allen RA, Zhang R, Wang S, Wentzensen N: The role of co-factors in the progression from human papillomavirus infection to cervical cancer. Gynecol Oncol. Feb 2013;128(2):265-70. PMID:23146688

  6. Zhao L, Wentzensen N, Zhang RR, Dunn ST, Gold MA, Wang SS, Schiffman M, Walker JL, Zuna RE. Factors associated with reduced accuracy in Papanicolaou tests for patients with invasive cervical cancer. Cancer Cytopathol. 2014 May 28. doi: 10.1002/cncy.21443. PMID:24888458. (Article was selected to be featured on journal cover)  

  7. Sahasrabuddhe VV, Gravitt PE, Dunn ST, Brown D, Allen RA, Smith K, Zuna RE, Zhang RR, Gold MA, Schiffman M, Walker JL, Castle PE, Wentzensen N: Comparison of HPV detection in urine, vulvar, and cervical samples from women attending a colposcopy clinic. J Clin Microbiol. 2014 Jan;52(1):187-92. Epub 2013 Nov 6. doi:10.1128/JCM.01623-13. PMID: 24197879  

  8. Jackson KW, Christiansen VJ, Yadav VR, Silasi-Mansat R, Lupu F, Awasthi V, Zhang RR, Mckee PA. Suppression of tumor growth in mice by rationally designed pseudopeptide inhibitors of fibroblast activation protein and prolyl oligopeptidase. Neoplasia. 2015 Jan;17(1):43-54. doi: 10.1016/j.neo.2014.11.002. PMID: 25622898

  9. Wentzensen N, Walker JL, Gold MA, Smith KM, Zuna RE, Mathews C, Dunn ST, Zhang R, Moxley K, Bishop E, Tenney M, Nugent E, Wacholder S, Schiffman M. Multiple biopsies improve detection of cervical cancer precursors at colposcopy. J Clin Oncol. 2015 Jan 1;33(1):83-9. Epub 2014 Nov 24. doi: 10.1200/JCO.2014.55.9948. PMID: 25422481.  

  10. Yang J, Hannafon BN, Zhang RR, Fung KM, Ding WQ. Docosahexaenoic acid and disulfiram act in concert to kill cancer cells: a mutual enhancement of their anticancer actions. Oncotarget. 2017 Jan 17. doi: 10.18632/oncotarget.14702. [Epub ahead of print] PMID: 28107189

Adjunct Faculty

Sepideh Nikki Asadbeigi, MD

Sepideh N Asadbeigi, MD

Assistant Professor - Pathology


Adjunct Faculty - Dermatology

Prabir K. Chakraborty, PhD

Prabir K. Chakraborty, PhD

Assistant Professor (Research)

Daniel J. Cowden, MD, FCAP, CPHIMS

Daniel J. Cowden, MD, FCAP, CPHIMS

Clinical Associate Professor

Charles Esmon, PhD

Charles Esmon, PhD

Lloyd Noble Chair, Cardiovascular Research

Member & Head, Cardiovascular Biology Research at OMRF

Adjunct Professor, Pathology

Adjunct Professor, Biochemistry

Investigator at Howard Hughes Medical Institute

David M Lewis, DDS

David M. Lewis, DDS

Associate Professor
Department of Oral and Maxillofacial Pathology

Adjunct Associate Professor
Department of Pathology

Yuechueng Liu, PhD

Yuechueng Liu, PhD

Associate Professor of Pathology

Jeffrey McBride, MD, PhD

Jeffrey McBride, MD, PhD

Assistant Professor

Director of Dermatopathology

Adjunct Faculty - Pathology

Charles A. Montgomery, DVM, DACVP, DACLAM

Charles A. Montgomery, DVM, DACVP, DACLAM

Adjunct Professor
Department of Pathology
Division of Comparative Medicine

Kathy L. Moser, PhD

Kathy L. Moser, PhD

Associate Member, Arthritis & Immunology Program

Adjunct Faculty, Pathology

Aravindan Natarajan

Aravindan Natarajan, MS., MPhil., PhD., CCA.

Associate Professor, Department of Radiation Oncology,
Associate Professor (Adjunct), Department of Anesthesiology,
Associate Professor (Adjunct), Department of Pathology
Course Director, Radiation Biology for Radiation Oncology Residents
Graduate Faculty, College of Medicine
Member, Cancer Biology Program

Amr H. Sawalha, MD

Amr H. Sawalha, MD

Assistant Member
Arthritis and Immunology Research Program

Assistant Professor of Medicine 
Department of Medicine

Staff Physician 
Veteran Affairs Medical Center
Oklahoma City

Adjunct Faculty
Department of Pathology