Home/Meet The Pathologists/Pathologist Profiles 805 W. La Veta Ave., Suite 104
Orange, CA 92868
Tel: (714) 288-4044
Fax: (714) 288-4042

LISA A. KOHORN, M.D.
MICHAEL I. SCHOEN, M.D.
BIJAN HAGHIGHI, M.D.
SHU-YUAN LIAO, M.D.
AARON F. SASSOON, M.D., Ph.D.
MARK A. LONES, M.D.

MEET THE PATHOLOGISTS

  1. Medical Director and President, Orange County Pathology Medical Group, Inc.
  2. Chairman, Department of Pathology, St. Joseph Hospital
  3. Chairman, Department of Pathology, Children’s Hospital of Orange County (CHOC)
  4. Director of Pediatric and Perinatal Pathology Services, St. Joseph Hospital  
  5. Surgical and Clinical Pathologist, St. Joseph Hospital and CHOC
  6. Certified by the American Board of Pathology in Anatomic Pathology, Clinical Pathology, and Pediatric Pathology
  7. Pediatric Pathology Fellowship, Children’s Hospital of Los Angeles
  8. Surgical Pathology Fellowship, Stanford University Medical Center
  9. Residency Training at University of California, Los Angeles (UCLA)
  1. Laboratory Medical Director, St. Joseph Hospital
  2. Vice-Chairman, Department of Pathology, St. Joseph Hospital and CHOC
  3. Director of Head and Neck Pathology Services, St. Joseph Hospital
  4. Director of Cytopathology Services, St. Joseph Hospital
  5. Surgical and Clinical Pathologist, St. Joseph Hospital and Children’s Hospital of Orange County (CHOC)
  6. Certified by the American Board of Pathology in Anatomic Pathology, Clinical Pathology and Cytopathology
  7. Surgical Pathology Fellowship, Stanford University
  8. Residency Training at George Washington University Medical Center
  1. Director of Pathology, St. Joseph Hospital Melanoma Program
  2. Director of Dermatopathology Services, St. Joseph Hospital
  3. Surgical and Clinical Pathologist, St. Joseph Hospital and Children’s Hospital of Orange County (CHOC)
  4. Certified by the American Board of Pathology in Anatomic Pathology, Clinical Pathology and Dermatopathology
  5. Clinical Instructor, Stanford Medical School
  6. Residency Training and Dermatopathology and Surgical Pathology Fellowships, Stanford University Hospital
  1. Director of Breast and Gynecologic Pathology Services, St. Joseph Hospital and Orange County Pathology Medical Group, Inc.
  2. Surgical and Clinical Pathologist, St. Joseph Hospital and Children’s Hospital of Orange County (CHOC)
  3. Clinical Professor, Department of Medicine, University of California, Irvine (UCI)
  4. Member of Pathology committee for Gynecologic Oncology Group (GOG)
  5. Certified by the American Board of Pathology in Anatomic Pathology, Clinical Pathology and Cytopathology
  6. Residency Training at University of Massachusetts Affiliated Hospitals and at UCI
  1. Director of Urologic Pathology Services, St. Joseph Hospital
  2. Director of Pulmonary Pathology Services, St. Joseph Hospital
  3. Surgical and Clinical Pathologist, St. Joseph Hospital and Children’s Hospital of Orange County (CHOC)
  4. Certified by the American Board of Pathology in Anatomic Pathology, Clinical Pathology and Hematopathology
  5. Hematopathology Fellowship, Cedars-Sinai Medical Center
  6. Residency Training at University of California, Los Angeles (UCLA)
  7. Doctor of Philosophy in Cellular Biology, University of Southern California (USC)
MARK A. LONES, M.D.


  1. Director of Hematopathology Services, St. Joseph Hospital
  2. Director of GI/Colorectal Pathology Services, St. Joseph Hospital 
  3. Surgical and Clinical Pathologist, St. Joseph Hospital and Children’s Hospital of Orange County (CHOC)
  4. Certified by the American Board of Pathology in Anatomic Pathology, Clinical Pathology and Hematopathology
  5. Surgical Pathology Fellowship, Stanford University
  6. Hematopathology Fellowship, Cedars-Sinai Medical Center
  7. Residency Training at University of California, Los Angeles (UCLA)
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