Medical & Laboratory Staff

Diane Bonner, Ph.D.
Clinical Cytogeneticist

 

Prior to joining Clarient in 2011, Dr. Bonner spent three years as the Assistant Director of Clinical Genetics and Molecular Medicine at the University of South Carolina School of Medicine. She was responsible for all laboratory operations, CAP proficiency testing, and case review/sign out of cytogenetic and FISH reports. In addition, she served as an Assistant Professor whose duties included teaching in the Genetics Counseling Program at the School of Medicine and at the University of South Carolina.

Dr. Bonner began her career as an analytical chemist at Colgate-Palmolive, then worked as a pharmaceutical chemist at GlaxoSmithKline. Dr. Bonner received a Ph.D. in biomedical sciences from East Carolina University, Greenville, NC and completed her Ph.D. research in the Department of Pediatrics, Division of Medical Genetics at the Brody School of Medicine, East Carolina University. She then went on to complete a postdoctoral fellowship in Clinical Cytogenetics at the Department of Pediatrics at University of Medicine and Dentistry, NNJ and the Department of Pathology at Robert Wood Johnson Hospital/The Cancer Institute in New Brunswick.
 

Noel Weidner, M.D.
Senior Consultative Pathologist

 

Before joining Clarient, Dr. Weidner was Professor of Pathology and Director of Anatomic Pathology at the University of California, San Diego for over 10 years. He has also served as Director of Surgical Pathology at the University of California, San Francisco and Associate Professor of Pathology at Harvard Medical School. Dr. Weidner has published over 200 articles in peer-reviewed journals, is the founding editor of the textbook Modern Surgical Pathology, authored over 30 book chapters, and serves on the editorial boards of Human Pathology, Applied Immunohistochemistry & Molecular Morphology, Annals of Diagnostic Pathology, Modern Pathology, American Journal of Clinical Pathology and Seminars in Diagnostic Pathology. His primary research interest is the development of novel prognostic markers for cancer patients.
 

Guohua Zhao, M.D., Ph.D.
Hematopathologist

 

Doctor Zhao is board certified in Anatomic and Clinical Pathology as well as Hematopathology and brings over 29 years of professional experience to Clarient. Prior to joining Clarient Dr. Zhao served as a staff pathologist at Cottage Hospital, Santa Barbara, and a clinical instructor in the Department of Pathology, University of California, Irvine.
Dr. Zhao completed his residency in surgical and clinical pathology at the University of California, Irvine. He continued his hematopathology fellowship at the University of Southern California, Los Angeles. Before his residency training, he served as research associate at Stanford University Medical Center and associate professor of Sun Yat-sen University of Medical Sciences. He has authored more than 30 publications in peer-reviewed medical journals.
 

Jian-Feng Wang.jpg, M.D., Ph.D.
Hematopathologist

 

 Doctor Wang joined Clarient in 2011 after he completed his fellowship training in Hematopathology at Beth Israel Deaconess Medical Center/Harvard Medical School. Dr. Wang is board certified in Anatomic and Clinical pathology and Hematopathology. Before his residency training he served as junior faculty at Harvard Medical School and as an assistant research scientist at Beth Israel Deaconess Medical Center. He had over 50 publications in scientific journals, presented at national and international scientific meetings, and his research focus is hematopoiesis and endothelial cell biology. 
 

Kenneth J. Bloom, M.D., F.C.A.P.
Chief Medical Officer

 

Doctor Bloom has been Medical Director since August 2004 and Chief Medical Officer since 2005. Prior to coming to Clarient Dr. Bloom spent more than two decades serving in senior academic, consultative and clinical roles with leading hospitals and healthcare enterprises focused on the specialization of cancer care.

Over the past 15 years, Dr. Bloom has held more than 10 appointed positions at Chicago-based Rush-Presbyterian-St. Luke’s Medical Center, one of the leading cancer research hospitals in the United States. Those positions included Director of Laboratory Operations, Director of Immunohistochemistry, and Director of the Breast Service in the Department of Pathology, Consultant to the Rush Breast Cancer Center, and Director of Information Services for the Rush Cancer Institute. During his tenure at Rush, his published studies validating the benefits of ACIS® (Automated Cellular Imaging System) image analysis for HER2 evaluation were instrumental in gaining broad acceptance for the Clarient technology. He currently serves as a member of the Immunohistochemistry and Technology Assessment Committee of the College of American Pathologists.  

Lawrence M. Weiss, M.D.
Senior Consultative Pathologist
Specialty – Surgical Pathology, Hematopathology and Immunohistochemistry

Dr. Weiss was Chairman of the Division of Pathology at the City of Hope National Medical Center.
He is the author of over 300 papers and book chapters, as well as three books including the recently published AFIP Lymph Node Fascicle. His laboratory discovered the first molecular evidence linking the Epstein-Barr virus with Hodgkin’s disease. He has won numerous awards, including the Benjamin Castleman and Arthur Purdy Stout, and has delivered over 100 national and international seminars. Dr. Weiss serves on the editorial board of eight scientific journals and is an associate editor of two.

Dennis P. O’Malley, M.D. 
Staff Pathologist
 

Doctor O’Malley has served as Medical Director of US Labs as well as the Director of the Immunohistochemistry Laboratory, Associate Director of the Molecular Pathology Laboratory and Co-Director of the Hematopathology Fellowship at Indiana University where he was an assistant professor. Dr. O’Malley’s areas of expertise include adult and pediatric bone marrow diseases, lymphomas, cutaneous hematologic disorders, splenic pathology, immunohistochemistry, flow cytometry and molecular diagnostics.

Dr. O’Malley completed residency training at Loma Linda University Medical Center and then proceeded to complete two hematopathology fellowships, one at Duke University and the second at Carolinas Medical Center. Dr. O’Malley has authored numerous articles, books and book chapters and serves as a reviewer for peer-reviewed journals including Human Pathology, Archives of Pathology and Laboratory Medicine, Cancer, Journal of Clinical Pathology, Genes, Chromosomes and Cancer.

Ainura Kyshtoobayeva, M.D., Ph.D.*
Immunohistochemistry Quality Control Director

 

Doctor Kyshtoobayeva brings 20 years of experience in IHC, histology, and FISH to Clarient. She previously served as a research pathologist at Oncotech where she also held the position of Manager of Histology and IHC. A native of Russia, Doctor Kyshtoobayeva received her medical degree from the Professor N. N. Petrov Research Institute of Oncology of the USSR Ministry of Public Health and was awarded a Ph.D in Pathology from the Board of the Leningrad State Institute of Continuing Education. In the United States, she completed her fellowship at the Oncology Research Faculty Development Program at the National Institutes of Health, Bethesda, Maryland. Dr. Kyshtoobayeva has published extensively in the areas of breast, prostate, and colon cancer. Please note that Dr. Kyshtoobayeva is not licensed or providing patients services in California.

* Dr. Kyshtoobayeva is not licensed in California and is not providing patient services in California
 

Paul Kirshman, M.D.
Staff Pathologist

Doctor Kirshman joined Clarient in 2010 after serving as a staff pathologist at Urocor and US Labs where his focus was on prostate pathology. Dr. Kirshman received his medical degree from the University of Montpellier, France, residency training at Westchester County Medical Center, Valhalla, NY, and fellowship training in molecular pathology under Dr. Mark Sobel at National Institutes of Health in Bethesda, MD.

Anselm “Ants” Hii, M.D., F.C.A.P.
Director of Consultative Services
 

Doctor Hii is a practicing pathologist and board certified in Anatomic and Clinical Pathology as well as Hematology. He received his medical degree as well as residency training at Loma Linda University and went on to complete a surgical pathology fellowship at the Los Angeles County-University of Southern California Medical Center and a fellowship in hematopathology at Cedars-Sinai Medical Center in Los Angeles. Dr. Hii is the current California Tumor Tissue Registry Co-Director for Web and Multimedia Development. He is a member of the College of American Pathologists, American Society for Clinical Pathology, and American Society of Hematology.
 

Dr. Hii currently is the California Tumor Tissue Registry Co-Director for Web and Multimedia Development. He is a member of the College of American Pathologists, American Society for Clinical Pathology, and American Society of Hematology.

Michele Hibbard, Ph.D.
Director of Genetics


 

Prior to joining Clarient, Dr. Hibbard spent six years as Director of Genetics at Irvine-based US Labs, where she helped launch and direct the operations of the genetics program. She was responsible for technical operations of the cytogenetic, FISH and molecular genetic laboratories.
Dr. Hibbard completed her postdoctoral research in the Department of Pathology at Brigham and Women’s Hospital in Boston and her thesis research in the Department of Microbiology and Molecular Genetics at the University of California, Irvine. She earned a certificate from the American Board of Medical Genetics in Clinical Molecular Genetics and Clinical Cytogenetics after training at Harvard Medical School.

Kate Grimm, M.D.
Hematopathologist 

Doctor Grimm joined Clarient as a Hematopathologist in 2010. After graduating from the University of Southern California, Keck School of Medicine she went on to a combined Anatomic and Clinical Pathology residency at Los Angeles County-University of Southern California Medical Center under the mentorship of Dr. Russell Brynes and Dr. Bharat Nathwani. Dr. Grimm has also completed a Hematopathology fellowship at the City of Hope Medical Center with Dr. Lawrence Weiss and a Surgical Pathology fellowship at the City of Hope Medical Center as well.

Dr. Grimm has a voluntary faculty appointment at the University of Southern California and her article titled “Necessity of Bilateral Bone Marrow Biopsies for Ancillary Cytogenetic Studies in the Pediatric Population” was recently published in the American Journal of Clinical Pathology.

Neil S. Goldstein, M.D.
Director of Surgical Pathology

 

Doctor Goldstein joined Clarient in 2010 and brings skills in diagnostic surgical pathology, immunohistochemistry, and molecular pathology. He is widely published, has been active in organized efforts related to the standardization of immunohistochemistry, and is an author of the ASCO/CAP Estrogen and Progesterone Receptor Immunohistochemistry Guidelines. Dr. Goldstein has served as Medical Director of Advanced Diagnostics Laboratory where he developed and performed anatomic molecular pathology assays and as Director of the Anatomic Molecular and Immunohistochemical Laboratory at William Beaumont Hospital, Royal Oak, MI.

John Glassco, M.D., F.C.A.P.
COO Clarient Pathology Services
 

Doctor Glassco brings over 25 years of experience in Pathology and Laboratory Medicine to Clarient. Most recently, he was Chief of Anatomic Pathology and Medical Director of Laboratories at Northridge Hospital Medical Center, Sherman Oaks Hospital, and AlliedPath Laboratory in San Diego. He has also served as Senior Attending Physician in the Department of Pathology and Laboratory Medicine at the UCLA David Geffen School of Medicine. Dr. Glassco possesses expertise in Dermatopathology and Transfusion Medicine and is on the Scientific Advisory Board of Resolution Biomedical Inc., in Tustin, CA, and is one of the founders of that company. Dr. Glassco received his medical training at Vanderbilt University/University of Virginia and pathology training at UCLA and the Wadsworth VAMC. Dr. Glassco is a recipient of many honors and awards, including honors in Internal Medicine from the University of Vienna, and has served as a general medical and science advisor for multiple television shows and motion pictures.  

George Csathy, M.D. 
Staff Pathologist

 

Doctor Csathy is a general surgical pathologist with over 16 years of professional experience. He worked for over nine years in the VA Greater Los Angeles Healthcare System where his duties in included surgical pathology and cytopathology as well as overseeing the training of pathology residents. Dr. Csathy is a graduate of the University of Minnesota Medical School. He completed his pathology residency training at Cedars-Sinai Medical Center and is board certified in Anatomic and Clinical Pathology.

Vladislav Chizhevsky, M.D., F.C.A.P., F.A.S.C.P. 
Hematopathologist

 

Vladislav Chizhevsky is board certified in the areas of Anatomic and Clinical Pathology and completed his fellowship in Hematopathology at the City of Hope under the tutelage of Dr. Lawrence Weiss. 

Sing-Tsung “Steve” Chen, M.D., Ph.D.
Director of Hematopathology


 

Doctor Chen is board certified in Anatomic and Clinical Pathology as well as Hematology and brings over 20 years of experience in medical research to Clarient. Dr. Chen came to Clarient after serving as Director of Hematopathology and Flow Cytometry, as well as Interim Medical Director, at US Labs. He completed his residency training in pathology at Temple University School of Medicine and received his Ph.D. in Molecular and Cellular Pathology from the same institution. Dr. Chen has also served as Associate Director of the Molecular Diagnostic Division and Assistant Professor of Pathology at Thomas Jefferson University and as Assistant Professor of Pathology at the University of Maryland.

Antony Bakke, Ph.D. 
Director of Flow Cytometry
 

Doctor Bakke joined Clarient in 2011 as the Director of Flow Cytometry. After receiving his Ph.D. in biochemistry from Caltech in Pasadena, Dr. Bakke went on to a postdoctoral fellowship at the Scripps Clinic and Research Foundation in San Diego and subsequently directed flow cytometry laboratories for both the Department of Medicine and the Cancer Center at the University of Southern California. Dr. Bakke became a full professor at the Oregon Health and Science University Hospital in Portland, Oregon and during 27 years there established and directed both the Clinical Immunology/Flow Cytometry Laboratory in the Pathology Department and the Knight Cancer Institute Core Flow Cytometry Resource.

Dr. Bakke is a diplomat of the American Board of Medical Laboratory Immunology and has published 80 research papers and several book chapters. He is the current President of the Association of Medical Laboratory Immunologists and has served on the Council of the International Clinical Cytometry Society from 2005.

Renuka Agrawal, M.D.
Hematopathologist
 

Doctor Agrawal is board certified in Anatomic and Clinical Pathology as well as in Hematopathology. She completed her residency in the Combined Anatomic and Clinical Pathology program at Loma Linda University Medical Center after which she went on to complete a Hematopathology Fellowship at the City of Hope National Medical Center with Dr. Lawrence Weiss where she served as faculty in the Department of Pathology before joining Clarient in 2011.