Meet Our Pathologists
Our board-certified pathologists bring focused training across anatomic, clinical, and subspecialty pathology. Together, they provide the depth of expertise needed for routine diagnoses, complex cases, and collaborative consultation.
Expertise You Can Access
Pathology is most valuable when expertise is available at the moment a clinical question arises. Our physicians welcome case discussions with referring providers and work together when a specimen benefits from additional subspecialty review.
Samuel Hwang, M.D.
Pediatric Pathology · Gastrointestinal & Liver Pathology · Anatomic & Clinical Pathology
Dr. Samuel Hwang is a board-certified anatomic and clinical pathologist and pathologist at Pathology Specialists, PA, with specialized training in pediatric pathology and gastrointestinal/liver pathology. He completed fellowships at Seattle Children’s Hospital and the University of Utah following his residency at Oregon Health & Science University. He earned his medical degree from the University of Queensland in Australia.
Dr. Hwang has contributed to multiple peer-reviewed publications and presentations in pediatric pathology, gastrointestinal disease, oncology, and cardiovascular research. His work includes studies on pancreatic cancer, Hirschsprung disease, pediatric surgical pathology, and cardiac nerve activity. He has also participated in tumor boards, pathology conferences, quality assurance initiatives, and medical education activities.
He is an active member of several professional organizations, including the Society for Pediatric Pathology and USCAP, and has volunteered internationally in community medical outreach programs in Australia.
Mark Jentoft, M.D.
Neuropathology · Molecular Diagnostics · Neuro-Oncology
Dr. Mark Jentoft is a board-certified neuropathologist and staff pathologist at Pathology Specialists, PA, with extensive expertise in neuropathology, molecular diagnostics, and neuro-oncology. He earned his BS summa cum laude from Michigan Technological University and his MD from Michigan State University College of Human Medicine, followed by residency training in Anatomic and Clinical Pathology and fellowship training in Neuropathology at Mayo Clinic.
Dr. Jentoft has authored more than 60 peer-reviewed publications and presentations focused on glioblastoma, molecular pathology, and diagnostic neuropathology. He is recognized nationally and internationally for his contributions to neuropathology research, education, and clinical practice, with presentations at major organizations including the American Association of Neuropathologists and the Society for Neuro-Oncology.
Mei Liang, M.D., Ph.D.
Hematopathology · Anatomic & Clinical Pathology
Dr. Mei Liang is a board-certified pathologist, specialized in hematopathology. She has served since 2010 as Staff Pathologist at Pathology Specialists, P.A., in Orlando, Florida, and holds multiple medical leadership roles within Orlando Health.
Dr. Liang earned her M.D. from Beijing Medical University and her Ph.D. in Molecular Medicine from the University of Cincinnati, where she also completed residency training and served as Chief Resident. She completed fellowships in Hematopathology and Surgical Pathology at The University of Texas M.D. Anderson Cancer Center.
An active researcher and educator, Dr. Liang has authored numerous peer-reviewed publications and presented nationally and internationally on lymphoma pathology, molecular oncology, and laboratory medicine.
Shuan C. Li, M.D.
Gastrointestinal, Liver & Molecular Pathology · Anatomic & Clinical Pathology
Dr. Shuan C. Li is a board-certified anatomic and clinical pathologist with expertise in gastrointestinal, liver, and molecular pathology. He earned his MD and MSc from the Fourth Military Medical University in China and pursued advanced training at the University of Southern California, The Ohio State University, Johns Hopkins University, and the University of Vermont.
Dr. Li has held academic and clinical appointments at Johns Hopkins and the University of Vermont, where he served as Assistant Professor and Attending Pathologist. His work has focused on diagnostic pathology, gastrointestinal diseases, inflammatory bowel disease, and molecular cytogenetics. He has authored more than 16 peer-reviewed publications and presented extensively at national and international pathology conferences, including USCAP and CAP meetings.
In addition to his clinical and research contributions, Dr. Li has been actively involved in medical education, professional societies, and community outreach throughout his career.
Xiaohua Wang, M.D., Ph.D.
Anatomic & Clinical Pathology · Hematopathology · Molecular & Genetic Pathology
Dr. Wang was born and grew up in Shaanxi, China. She attended Xi’an Medical University and Peking University Health Science Center and completed an MD and PhD degree respectively. She then went to Oregon Health & Science University for post-doctoral research, residency and fellowship training in Anatomic/Clinical Pathology, Hematopathology, and molecular and genetic pathology. Afterwards, she practiced at Providence Portland Medical Center for 3 years before joining Pathology Specialists in 2021. Outside of medicine, Dr. Wang enjoys traveling with her family and hiking in nature.
Xiaoqin Zhu, M.D., Ph.D.
Anatomic & Clinical Pathology · Cytopathology · Gastrointestinal & Liver Pathology
Dr. Xiaoqin Zhu graduated from Sun Yat-sen University of Medical Sciences in China with a major in Clinical Medicine and earned a Ph.D. in Neurobiology from the University of Connecticut. She completed residency training in Pathology at UMass Memorial Medical Center, followed by a fellowship in Gastrointestinal and Liver Pathology at UMass. She subsequently completed Cytopathology fellowship training at Brigham and Women’s Hospital. She is board certified in Anatomic and Clinical Pathology as well as Cytopathology.
Outside of work, Dr. Zhu enjoys exploring Chinese cuisine and sharing meals with family and friends. She also appreciates traveling, hiking in nature, and dancing as both exercise and relaxation.
Consult With Our Team
Current clients and referring physicians can contact Pathology Specialists to discuss a case, request an additional review, or connect with the appropriate subspecialist. Explore our diagnostic services or learn about our practice.