Our Pathologists
Roby P. Joyce, MD, FCAP, FASCP, is board certified in Anatomic and Clinical Pathology. His special interest is in GI pathology. Several years ago, Dr. Joyce became interested in GI pathology as a subspecialty and decided to focus all of his Continuing Medical Education in GI pathology. Annually he attends the Johns Hopkins seminar “Current Topics in GI Pathology” and other GI pathology-related CME. Dr. Joyce is also a board certified Neurologist. During his pathology residency he received extensive additional training in neuropathology. During his assignment to Brooke Army Medical Center he served as Chief of Clinical Pathology and Director of Residency Training. His Curriculum Vitae includes numerous scientific articles. Dr. Joyce has over 30 years experience in pathology.
Patricia G. Jeffreys, MD, FCAP, is board certified in Anatomic and Clinical Pathology. She is also a Fellow of the College of American Pathologists. Dr. Jeffreys has a special interest in GI pathology and focuses much of her Continuing Medical Education in this area of practice. In addition, she is knowledgeable in the area of pulmonary pathology. During her years at Brooke Army Medical Center she presented the pathology findings for cases presented at the monthly multidiscipline pulmonary conference. Dr. Jeffreys is an excellent general pathologist with over 26 years of experience.
Peggy N. Stoll, MD, FCAP, is a Fellow of the College of American Pathologists and is board certified in Anatomic and Clinical Pathology. In addition, Dr. Stoll is board certified in Hematopathology. She is an expert in the highly sophisticated and rapidly evolving fields of bone marrow pathology, blood disorders (e.g. leukemias and anemia) and disorders of lymph nodes. She is knowledgeable in the clinical application of two highly sophisticated areas of pathology testing: flow cytometry and immunohistochemical stains. She is also an excellent and knowledgeable general pathologist with over 25 years experience.
Howard G. Weisbrod, MD, FCAP, is board certified in Anatomic and Clinical Pathology and a Fellow of the College of American Pathologists. Dr. Weisbrod also holds specialty board certification in Cytopathology. Dr. Weisbrod has a special interest and expertise in the field of gynecological pathology and liver pathology. As an experienced general pathologist and cytopathologist; before joining Precision Pathology Services, Dr. Weisbrod completed a career in the U S Army Medical Corps. While stationed at Brooke Army Medical Center, Dr. Weisbrod was actively involved in training pathology residents. He brings over 27 years of experience with him.
Hanan Hussein Ayoub, MD, FCAP, is board certified in Anatomic Pathology and is also a Fellow of the College of American Pathologists. In addition to five years of training in general pathology, Dr. Ayoub completed a Pediatric Pathology Fellowship at Christus Santa Rosa Hospital in San Antonio Texas. Her fellowship included Pediatric Pathology training in Surgical Pathology, Hematology, Cytology, and Renal Pathology. Dr. Ayoub is an excellent anatomic pathologist with over 10 years experience. Her special areas of interest are GI Pathology, Pediatric Pathology and Dermatopathology.
Lilia Wojcik, MD, FCAP, is board certified in Anatomic and Clinical pathology. She has more than 20 years experience in surgical pathology in addition to her previous OB/GYN, pediatric and vascular surgery experience. Dr. Wojcik has a special interest in gynecologic pathology, breast pathology, and endocrine pathology.