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Photo of Dr. Michael Xing

Michael Mingzhao Xing, M.D., Ph.D.

Professor of Medicine

Male  | Languages: English, Chinese

Appointment Phone


Main Location

Johns Hopkins Outpatient Center

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Professor of Medicine
  • Professor of Oncology
  • Professor of Pathology

Centers & Institutes



Johns Hopkins Outpatient Center

Appointment Phone: 410-955-9270

601 N. Caroline Street
Baltimore, MD 21287 map
Phone: 410-502-6888
Fax: 410-367-2042

The Johns Hopkins Hospital

Appointment Phone: 410-955-9270

600 N. Wolfe Street
Sheikh Zayed Tower Suite 333
Baltimore, MD 21287 map
Phone: 410-502-6888
Fax: 410-367-2042


Endocrine Diseases, Endocrinology, Hyperthyroidism, Hypothyroidism, Thyroid Cancer, Thyroid Disorders, Thyroid Nodules

Research Interests

Thyroid Cancer; Thyroid Nodules


Dr. Michael Mingzhao Xing is a professor of medicine at the Johns Hopkins University School of Medicine. He is also a professor of oncology and of pathology. His areas of clinical expertise include endocrine diseases, including hyperthyroidism, hypothyroidism, thyroid cancer, thyroid disorders and thyroid nodules. 

Dr. Xing received his M.D. from the Second Military Medical University. He completed his residency at the Greater Baltimore Medical Center. He performed a fellowship in pharmacology at the University of California San Diego School of Medicine and a fellowship in endocrinology and metabolism at Johns Hopkins.

Dr. Xing’s research interests include thyroid cancer and thyroid nodules. more

    Additional Information

  • Education +


    • Second Military Medical University / MD (1984)


    • Greater Baltimore Medical Center / Internal Medicine (2000)


    • University of California San Diego School of Medicine / Pharmacology (1997)
    • Johns Hopkins University School of Medicine / Endocrinology and Metabolism (2003)


    • American Board of Internal Medicine / Endocrinology/Diabetes/Metabolism (2003)
    • American Board of Internal Medicine / Internal Medicine (2000)
  • Research & Publications +

    Clinical Trial Keywords: Thyroid Cancer, novel therapeutic agents, diagnostic and prognostic molecular markers

    Selected Publications

    Ball DW, Jin N, Rosen DM, Dackiw A, Sidransky D, Xing M, Nelkin BD. "Selective growth inhibition in BRAF mutant thyroid cancer by the mitogen-activated protein kinase kinase 1/2 inhibitor AZD6244." J Clin Endocrinol Metab. 2007 Dec;92(12):4712-8. Epub 2007 Sep 18.

    Hu S, Liu D, Tufano RP, Carson KA, Rosenbaum E, Cohen Y, Holt EH, Kiseljak-Vassiliades K, Rhoden KJ, Tolaney S, Condouris S, Tallini G, Westra WH, Umbricht CB, Zeiger MA, Califano JA, Vasko V, Xing M. "Association of aberrant methylation of tumor suppressor genes with tumor aggressiveness and BRAF mutation in papillary thyroid cancer." Int J Cancer. 2006 Nov 15;119(10):2322-9.

    Hu S, Ewertz M, Tufano RP, Brait M, Carvalho AL, Liu D, Tufaro AP, Basaria S, Cooper DS, Sidransky D, Ladenson PW, Xing M. "Detection of serum deoxyribonucleic acid methylation markers: a novel diagnostic tool for thyroid cancer." J Clin Endocrinol Metab. 2006 Jan;91(1):98-104. Epub 2005 Nov 1.

  • Academic Affiliations & Courses +
  • Activities & Honors +
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