Our Team
Pathologists

Geza Acs, MD, PhD

Boulos Beshai, MD

Bo Chen, MD, PhD

Lugen Chen, MD, PhD
Austin Ellis, MD

Melinda Fang, MD

Jon Finan, MD, PhD
Jon Frankel, MD
Jason Gregory, MD
Scott Gregory, MD

Casey E. Gooden, MD

Chris Hancock, MD

Jonathon Heath, MD
Sharon Hook, DO

Yanfei (Faye) Huang, MD, PhD

Thomas Jewell, MD

Xiaoyin (Sara) Jiang, MD
Zhongbo Jin, MD

Alejandra Kalik, MD
Azeem Khan, MD

Patrick Malafronte, MD

David Metter, MD

Edward (Ted) O’Neill, MD

Karen Y Reeves, MD

Nicole Riddle, MD

Judith Robens, MD

Robert Ruffolo, DO

Lamees Saeed, MD

Megan Selbst, MD
Jake Sharma, DO

David Shields, MD

Thora Steffensen, MD

Kurt Stonesifer, MD

Julie Vitko, MD

Otto Walter, MD

Eric Wei, MD, PhD

Dong-Lin Xie, MD, PhD
Staff

Kristen Babbs, PA-C

Desiree Alves, PA (ASCP)

Amber Basista, PA (ASCP)

Julianna Caputo, PA (ASCP)

Rebecca Carter, PA (ASCP)

Lauryn Durkin, PA (ASCP)

Elbymar Fraticelli Cartagena, PA (ASCP)

Genesis Galva, PA (ASCP)

Megan Higbie, PA (ASCP)

Brittany Marshall, PA (ASCP)

Dianne McElroy, PA (ASCP)
Pamela Passidakis, PA (ASCP)

Rachael Polaczek, PA (ASCP)

Shawn Richmond, PA (ASCP)

Kimberly Rosenfeld, PA (ASCP)

Wendy Simpson, PA (ASCP)
Avery Sims, PA
Gillian Sulma, PA
Ashley Warner, ARNP
Emmylee Zang, PA (ASCP)
Affiliated Physicians
May Rosa Arroyo, MD, PhD
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Anne Champeaux, MD
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Wei-Shen Chen, MD, PhD
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Lewis Frank Glass, MD
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James M Grichnik, MD, PhD
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Paul Rodriguez-Waitkus, MD, PhD
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Maryam Tahmasbi, MD
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New Person PHD
Anatomic and Clinical Pathology, Pediatric Pathology
May Rosa Arroyo, MD, PhD
Anatomic and Clinical Pathology, Pediatric Pathology
Anne Champeaux, MD
Chair, Department of Pathology and Cell Biology, University of South Florida
Board Certified
Anatomic and Clinical Pathology
Wei-Shen Chen, MD, PhD
Board Certified
Anatomic and Clinical Pathology, Dermatopathology
Lewis Frank Glass, MD
Board Certified
Anatomic and Clinical Pathology, Dermatopathology, Dermatology
James M Grichnik, MD, PhD
Professor and Chair, Department of Dermatology and Cutaneous Surgery, University of South Florida
Board Certified
Anatomic and Clinical Pathology, Dermatopathology
Paul Rodriguez-Waitkus, MD, PhD
Board Certified
Anatomic and Clinical Pathology, Dermatopathology
Su Xu, MD, PhD
Board Certified
Anatomic and Clinical Pathology, Dermatopathology
Maryam Tahmasbi, MD
Board Certified
Anatomic and Clinical Pathology, Cytopathology
Bo Chen, MD, PhD
Board Certified: Anatomic and Clinical Pathology
- Fudan University, Shanghai, China – PhD
- University of Pittsburgh Medical Center – Transplantation and Hepatic Pathology Fellowship
- University of Alabama at Birmingham – Genitourinary Renal Pathology Fellowship
- University of Alabama at Birmingham- Anatomic and Clinical Pathology Residency
- Medical School of Qingdao University, China – MD
Boulos Beshai, MD
Board Certified: Anatomic and Clinical Pathology, Cytopathology
Subspecialty: Cytopathology
- Ohio State University – Cytopathology Fellowship
- University at Buffalo/State University of New York, Roswell Park Comprehensive Cancer Center – Oncologic Surgical Pathology Fellowship
- Hartford Hospital – Anatomic and Clinical Pathology Residency
- Ain Shams University Medical School, Cairo, Egypt – M.B.B.Ch.
Eric Wei, MD, PhD
Board Certified: Anatomic and Clinical Pathology, Hematopathology
Subspeciality: Hematopathology
- Johns Hopkins University – PhD
- University of Texas, MD Anderson Cancer Center – Hematopathology Fellowship
- Louisiana State University Health Sciences Center- Anatomic and Clinical Pathology Residency
- Ohio State University – M.S. Biochemistry
- Shanghai Medical College Fudan University, China – Research Fellow, Virology and Immunology
- Shanghai Medical College Fudan University, China – B.M./M.D.
Azeem Khan, MD
Board Certified: Anatomic and Clinical Pathology
- University of Miami/ Jackson Health – Surgical Pathology Fellowship
- MD Anderson Cancer Center – Hematopathology Fellowship
- Orlando Regional Medical Center – Anatomic and Clinical Pathology Residency
- University of South Florida Morsani College of Medicine – MD
- University of Central Florida, Medical Laboratory Sciences – BS
Austin Ellis, MD
Board Certified: Anatomic and Clinical Pathology, Hematopathology
Subspeciality: Hematopathology
- Moffitt Cancer Center – Hematopathology Fellowship
- Orlando Regional Medical Center- Chief Resident Pathology
- Orlando Regional Medical Center – Anatomic and Clinical Pathology Residency
- St. Matthew’s University School of Medicine, Grand Cayman, British West Indies – MD
- University of Central Florida, Molecular Biology & Microbiology – BS
Jason Gregory, MD
Board Certified: Anatomic and Clinical Pathology, Neuropathology
Subspeciality: Neuropathology
- University of Florida – Neuropathology Fellowship
- San Antonio Uniformed Services Health Education Consortium – Anatomic and Clinical Pathology Residency
- Kansas University School of Medicine – MD
- Kansas State University – BS
Scott Gregory, MD
Board Certified: Anatomic and Clinical Pathology, Neuropathology
- Royal College of Pathology Histology – Diplomateship
- University of Florida – Anatomic and Clinical Pathology Residency
- University of Kansas School of Medicine – MD
- United States Military Academy – BS
Sharon Hook, MD
Board Certified: Anatomic and Clinical Pathology, Cytopathology, National Board of Osteopathic Medical Examiners
Subspeciality: Cytopathology
- Albert Einstein College of Medicine – Cytopathology Fellowship
- Cleveland Clinic Foundation – Anatomic and Clinical Pathology Residency, Chief Resident
- Southeastern University of the Health Sciences – MD
- University of South Florida – BS
Zhongbo Jin, MD
Board Certified: Anatomic and Clinical Pathology
- University of Florida – Surgical Pathology Fellowship
- University of Florida – Anatomic and Clinical Pathology Residency
- Baylor University – MS, Biomedical Studies
- China Medical University, Liaoning, China – MD
Geza Acs, MD, PhD
Shareholder
Board Certified: Anatomic Pathology
Subspeciality: OB-GYN & Breast Pathology
- University of Medical School of Debrecen, Debrecen, Hungary – PhD
- University of Pennsylvania Medical Center – Surgical Pathology Fellowship
- University of Pennsylvania Medical Center – Anatomic Pathology Residency
- University Medical School of Debrecen, Debrecen, Hungary – Obstetrics and Gynecology Residency
- University Medical School of Debrecen, Debrecen, Hungary – MD
Xiaoyin “Sara” Jiang, MD
Senior Pathologist
Board Certified: Anatomic and Clinical Pathology, Cytopathology
Subspeciality: Cytopathology
- Duke University Medical Center – Cytopathology Fellowship
- Duke University Medical Center – Anatomic and Clinical Pathology Residency
- Duke University Medical Center – MD
- Duke University – BS
Thomas Jewell, MD
Laboratory Medical Director: AdventHealth Sebring, Wauchula, and Lake Placid
Board Certified: Anatomic and Clinical Pathology, National Board of Medical Examiners, American Board of Pathology and Dermatology – Dermatopathology
Subspeciality: Dermatopathology
- Armed Forces Institute of Pathology and Walter Reed Army Medical Center – Dermatopathology Fellowship
- Eisenhower Army Medical Center, Fort Gordon – Anatomic and Clinical Pathology Residency
- University of Miami School of Medicine – MD
- United States Military Academy, West Point – BS
Lugen Chen, MD, PhD
Shareholder
Board Certified: Anatomic and Clinical Pathology, Hematopathology
Subspecialty: Hematopathology
Laboratory Medical Director: Tampa General Hospital
Assistant Professor: University of South Florida
- Texas Tech University – PhD
- Albert Einstein College of Medicine – Hematology Fellowship
- Nassau University Medical Center/ The State University of New York at Stony Brook: Anatomic and Clinical Pathology Residency, Chief Resident
- Anhui Medical University Hefei, Anhui, P. R. CHINA – MD
Melinda Fang, MD
Board Certified: Anatomic and Clinical Pathology
Assistant Professor: University of South Florida
- Georgetown University – Transplant, Medical Kidney/ Liver Fellowship
- University of North Carolina – Surgical Pathology Fellowship
- University of South Florida – Anatomic and Clinical Pathology Residency
- University of South Florida Morsani College of Medicine – MD
- University of South Florida, Biomedical Science combined – BS/MD
Jon Finan, MD, PhD
Shareholder
Board Certified: Anatomic and Clinical Pathology, Cytopathology
Subspecialty: Cytopathology
Assistant Professor, University of South Florida
- Virginia Commonwealth University School of Medicine – PhD
- Johns Hopkins Hospital – Cytopathology Fellowship
- University of Maryland – Anatomic and Clinical Pathology Residency
- University of South Florida – Anatomic and Clinical Pathology Residency
- Virginia Commonwealth University of Medicine – MD
- University of Maryland – BSc
Casey Gooden, MD
Shareholder
Board Certified: Anatomic and Clinical Pathology, Hematopathology
Subspecialty: Hematopathology
Chief of Pathology Department, Tampa General Hospital
Assistant Professor, University of South Florida
- University of Pittsburg Medical Center – Hematopathology Fellowship
- Emory University – Anatomic and Clinical Pathology Residency
- University of South Florida Morsani College of Medicine – MD
- University of South Florida – BS
Jonathon Heath, MD
Shareholder
Board Certified: Anatomic and Clinical Pathology, Cytopathology
Subspeciality: Cytopathology
Laboratory Medical Director: AdventHealth Riverview
- Ross University School of Medicine – MD
- University of Maryland Medical Center – Anatomic and Clinical Pathology Residency
- University of Maryland Medical Center – Cytopathology Fellowship
- Johns Hopkins Hospital – Surgical Pathology Fellowship
Yanfei “Faye” Huang, MD, PhD
Shareholder
Board Certified: Anatomic and Clinical Pathology
Subspeciality: GI Pathology
Laboratory Medical Director: AdventHealth Zephyrhills and AdventHealth Dade City
- University of Florida – Anatomic and Clinical Pathology Residency, and Fellowship Gastrointestinal and Liver Pathology
- Nanjing University School of Medicine, China – MD, PhD
Alejandra Kalik, MD
Board Certified: Anatomic and Clinical Pathology, Cytopathology
Subspecialty: Cytopathology
Laboratory Medical Director: Memorial Hospital of Tampa, Tampa Community Hospital, Reliance Pathology
- University of South Florida – Anatomic and Clinical Pathology Residency
- University of South Florida Morsani College of Medicine – MD
- University of Miami – Bachelor of Science
Patrick Malafronte, MD
Shareholder
Board Certified: Neuropathology, Anatomic and Clinical Pathology
Subspecialty: Neuropathology
- University of Texas Southwestern, Dallas, TX – Neuropathology Fellowship
- National Capital Consortium, Walter Reed Army Medical Center – Anatomic and Clinical Pathology Residency
- Albany Medical College, Albany, NY – MD
- Siena College, NY
David Metter, MD
Shareholder
Board Certified: Anatomic and Clinical Pathology
Subspecialty: Pediatric Pathology
Assistant Professor, University of South Florida
- University of Texas Southwestern – Pediatric Pathology Fellowship
- Baylor University Medical Center – Anatomic and Clinical Pathology Residency
- University of Texas Health Science Center at San Antonio – MD
- University of Texas at Austin
Edward (Ted) O’Neill, MD
Shareholder
Board Certified: Anatomic and Clinical Pathology, Cytopathology
Subspecialty: Cytopathology
Vice Chief of Pathology Department, Tampa General Hospital
Assistant Professor, University of South Florida
- Beth Israel Deaconess Medical Center – Cytology Fellowship
- Beth Israel Deaconess Medical Center – Anatomic and Clinical Pathology Residency
- Drexel University College of Medicine – MD
- University of Vermont
Karen Y Reeves, MD
Board Certified: Anatomic and Clinical Pathology
Subspecialty: Hematopathology
- University of South Florida: Clinical Pathology Residency
- University of Florida: Anatomic Pathology Residency
- University of Florida, College of Medicine – MD
- Florida State University – BA
Nicole Riddle, MD
Shareholder
Board Certified: Anatomic and Clinical Pathology, Dermatopathology
Subspecialities: Bone and Soft Tissue, Dermatopathology, Gastrointestinal, Neuropathology
Associate Professor, University of South Florida
- University of Pennsylvania Health System: Fellowship in Bone and Soft Tissue, focus in Dermatopathology and Gastrointestinal Pathology
- University of South Florida College of Medicine – Anatomic and Clinical Pathology Residency
- University of Florida College of Medicine – MD
- Emory University – BS
Judith Robens, MD
Subspecialty: Breast Pathology
Assistant Professor, University of South Florida
- Beth Israel Deaconess Medical Center, Harvard Medical School – Fellowship in Breast Pathology
- Beth Israel Deaconess Medical Center, Harvard Medical School – Anatomic and Clinical Pathology Residency
- University of Miami Miller School of Medicine – MD
- University of Florida
Robert Ruffolo, DO
Board Certified: Anatomic and Clinical Pathology, National Board of Osteopathic Medical Examiners
Subspecialty: Pulmonary
Assistant Professor at University of South Florida
- Mayo Clinic Scottsdale – Lung Fellowship
- Mayo Clinic – Fellowship Surgical Pathology
- Nova Southeastern University College of Osteopathic Medicine – DO
- University of South Florida
Megan Selbst, MD
Board Certified: Anatomic and Clinical Pathology, Cytopathology
Subspecialty: Cytopathology
Laboratory Director: AdventHealth Wesley Chapel
- Yale University School of Medicine – Cytopathology Fellowship
- Yale University School of Medicine: Anatomic and Clinical Pathology Residency
- University of Miami School of Medicine – MD
- Barry University – MS
- University of Florida – BS
David J. Shields, MD
Board Certified: Anatomic and Clinical Pathology, Hematopathology
Subspecialty: Hematopathology
Laboratory Medical Director: AdventHealth Carrollwood
- Mayo Graduate School of Medicine – Hematopathology Fellowship
- Mayo Graduate School of Medicine – Anatomic and Clinical Pathology Residency
- Loma Linda University – MD
- Southern Adventist University
Thora Steffensen, MD
Director of Autopsy Pathology
Subspecialty: Pediatric Pathology
Affiliate Assistant Professor, University of South Florida, Morsani College of Medicine
- University of South Florida, Tampa General Hospital – Pediatric Pathology Fellowship
- Office of the Chief Medical Examiner of the Commonwealth of Mass. – Forensic Pathology Fellowship
- University of Iceland, University Hospital of Linkoping Sweden, Tufts/New England Medical Center – Anatomic Pathology Residency
- University of Iceland Medical School, Reykjavik, Iceland – MD
Kurt Stonesifer, MD
Board Certified: Anatomic and Clinical Pathology, Cytopathology
Subspecialties: Cytopathology, Hematopathology
Laboratory Medical Director: AdventHealth Tampa, Chief of Pathology, AdventHealth Tampa
- University of Florida – Surgical Pathology and Hematopathology Fellowship
- University of Florida – Anatomic and Clinical Pathology Residency
- University of Texas Medical Branch – MD
- Rice University
Julie Vitko, MD
Shareholder
Board Certified: Anatomic and Clinical Pathology
Subspecialty: Hematopathology
Assistant Professor, University of South Florida
- University of Arizona Health Sciences Center – Anatomic and Clinical Pathology Residency
- University of Zulia School of Medicine – MD
Otto Walter, MD
Board Certified: Anatomic and Clinical Pathology
Subspecialty: GI Pathology
Vice Chief of Pathology Department: AdventHealth Tampa
- UMass Medical School – Surgical Pathology Fellowship
- Eastern Virginia Medical School; UMass Medical School – Anatomic and Clinical Pathology Residency
- University of Pecs Medical School, Hungary – MD
Dong-Lin Xie, MD, PhD
Board Certified: Anatomic and Clinical Pathology, Dermatopathology
Subspecialty: Dermatopathology, Transfusion Medicine
- Ohio State University Medical School – Transfusion Medicine Fellowship
- Ohio State University Medical School – Dermatopathology Fellowship
- Ohio State University Medical School – Anatomic and Clinical Pathology Residency
- Shanghai Medical University – MD
- Rush Presbyterian St. Lukes Medical Center – PhD
Kristen Babbs, PA-C
- Nova Southeastern University – MS Physician Assistant
- University of Florida, BS Health Science
Desiree Alves, PA (ASCP)
Certified 2013
- Quinnipiac University, MHS Pathologists’ Assistant
- University of South Florida, BS Biomedical Sciences
Genesis Galva, PA (ASCP)
Pathologists’ Assistant
Certified 2025
- University of Texas Medical Branch, MHS Pathologists’ Assistant
- University of Illinois Urbana-Champaign, BS Advertising
Julianna Caputo, PA (ASCP)
Pathologists’ Assistant
Certified 2021
- Quinnipiac University, MHS Pathologists’ Assistant
- University of Rhode Island, BS Medical Laboratory Science
Erin “Ashley” Warner, MSN, ARNP, NP-C
Nurse Practitioner
- Florida Southern College, MSN
- St. Petersburg College, BSN
- St. Petersburg College, Associate in Nursing
- Florida Southern College, BS
Gillian Sulma, PA (ASCP)
Pathologists’ Assistant
Certified 2025
- West Virginia University, MHS Pathologists’ Assistant
- University of South Florida, BS
Avery Sims, PA (ASCP)
Pathologists’ Assistant
Certified 2025
- University of Tennessee Health Scient Center, MHS Pathologists’ Assistant
- Indiana University, BS
Emmylee Zang, PA (ASCP)
Pathologists’ Assistant
Certified 2024
- University of Texas Medical Branch, MHS Pathologists’ Assistant
- University of Texas Medical Branch, MS Clinical Laboratory Sciences
- Eastern Michigan University, BS
Elbymar Fraticelli Cartagena, PA (ASCP)
Pathologists’ Assistant
Certified 2025
- University of Toledo, MHS Pathologists’ Assistant
- University of Toledo, MS Biomedical Sciences
- University of South Florida, BS Biomedical Sciences
- Hillsborough Community College, AA Biomedical Sciences
Amber Basista, PA (ASCP)
Pathologists’ Assistant
Certified 2009
- Duke University, MHS Pathologists’ Assistant
- University of North Carolina at Chapel Hill, BS Biology
Pamela Passidakis, PA (ASCP)
Pathologists’ Assistant
Certified 2005
- Quinnipiac University, MHS Pathologists’ Assistant
- Saint Joseph’s College, BA Biology
Lauryn Durkin, PA (ASCP)
Certified 2011
- Quinnipiac University, MHS Pathologists’ Assistant
- University of South Florida, BS Biomedical Sciences
Megan Higbie, PA (ASCP)
Certified 2020
- Wayne State University, MS Pathologists’ Assistant
- Central Michigan University, BS Kinesiology
Brittany Marshall, PA (ASCP)
Certified 2013
- Drexel University, MS Pathologists’ Assistant
- University of Florida, BS Microbiology & Cell Science
Dianne McElroy, PA (ASCP)
Certified 2014
- Rosalind Franklin University of Medicine and Science, MS Pathologists’ Assistant
- Western Kentucky University, BS Biology
Rachael Polaczek, PA (ASCP)
Certified 2020
- Quinnipiac University, MHS Pathologists’ Assistant
- Oakland University, BS Biomedical Sciences
Shawn Richmond, PA (ASCP)
Certified 1997
- Quinnipiac University, MHS Pathologists’ Assistant
- Clarion University of PA, BS Biology
Kimberly Rosenfeld, PA (ASCP)
Certified 2020
- University of Maryland, MS Pathology
- University of Florida, BS Chemistry
Wendy Simpson, PA (ASCP)
Certified 2019
- West Virginia University School of Medicine, MHS Pathologists’ Assistant
- Metropolitan State University of Denver, BS Biology
Rebecca Carter, PA (ASCP)
Pathologists’ Assistant
Certified 2015
- West Virginia University School of Medicine, MS Pathologists’ Assistant
- George Washington University, MFS with Concentration in Toxicology
- Vanderbilt University, BS Chemistry Major, Biological Science Minor
Executive Team

Robert Ruffolo, DO
PRESIDENT

Kurt Stonesifer, MD
VICE PRESIDENT

Karen Reeves, MD
SECRETARY

Dong-lin Xie, MD
TREASURER

Alejandra Kalik, MD
MEMBER AT LARGE

Patrick Malafronte, MD
MEMBER AT LARGE

Jonathon Heath, MD
MEMBER AT LARGE
