Our Physicians

Learn more about our physicians:

Lee Thompson, M.D. FACS

Surgical Oncologist

Dr. Thompson graduated from Auburn University with a Bachelor of Science in Microbiology. He received his medical degree from the University of South Alabama were he was elected into the Alpha Omega Alpha honor society. He is board certified in surgery, he completed his residency in general surgery at the University of Virginia where he also completed additional surgical oncology training with an emphasis on hepatobiliary and pancreatic surgery. He was active in melanoma vaccine research and has multiple publications on the subject. Dr. Thompson held a faculty position in the Department of Surgery at the University of Virginia prior to moving to Mobile in 2002.


Zhiqing Xing, M.D., Ph.D.

Orthopaedic Oncologist

Dr. Xing specializes in Musculoskeletal Oncology, treating benign and malignant tumors involving bone or soft tissue. He is also experienced in treating bone fractures and complex hip and knee replacement.

Dr. Xing attended medical school at Beijing Medical University and completed his orthopaedic residency training at Peking University Health Science Center in Beijing, China. He then completed a visiting fellowship in Japan. In November 2002, Dr. Xing came to the United States and since then has undergone extensive training in both orthopaedic research and clinical orthopaedic surgery. He completed training in orthopaedic research at the University of Tennessee-Campbell Clinic and at the University of California at San Francisco. For clinical training, he completed fellowship training in Orthopaedic Trauma at the University of New Mexico, Adult Reconstruction at the Virginia Commonwealth University, and Musculoskeletal Oncology at the University of Texas-MD Anderson Cancer Center.

In October 2011, Dr. Xing moved to Mobile and joined the faculty of Orthopaedic Surgery at the University of South Alabama and practices at the University Hospitals as well as Cancer Surgery of Mobile at Infirmary Health System.

  • Surgical Expertise:
    • Primary bone tumors, benign or malignant
    • Soft tissue tumors, benign or malignant
    • Bone metastatic lesions (from breast cancer, lung cancer, thyroid cancer, etc.)
    • Bone pathologic fractures or impending fractures
    • Severe joint destruction or bone loss, due to degeneration, inflammation, or trauma
    • Complex hip or knee replacement, primary or revision
    • Orthopaedic trauma (bone fractures involving extremities and pelvis)

Gerhard A. Boehm, M.D., FACS

General Surgeon

Dr. Boehm graduated from Duke University with a Bachelor of Science in Chemistry. He received his medical degree from the University of Alabama at Birmingham. Dr. Boehm is board certified in general surgery and completed his surgical residency at Emory University. He has performed more than 7,000 breast surgeries during his career.


Issac C. Payne, D.O.

Colorectal Surgeon

Dr. Payne is a fellowship trained colorectal surgeon. He completed his subspecialty training in colon and rectal surgery at Orlando Regional Medical Center’s Colon & Rectal Clinic of Orlando — a nationally recognized fellowship distinguished in minimally invasive and robotic colon and rectal surgery. Dr. Payne completed his residency in general surgery at the University of South Alabama College of Medicine.

After completing his fellowship training in 2018, Dr. Payne moved to Alabama and joined Cancer Surgery of Mobile.

  • Surgical Expertise:
    • Minimally invasive colon and rectal
    • Robotic colon and rectal
    • Benign or malignant tumors of colon, rectum, and anus
    • Hereditary colorectal cancer
    • Inflammatory bowel disease including ulcerative colitis and Crohn's disease
    • Diverticular disease of the colon
    • Anal fissure
    • Hemorrhoids
    • Anal fistula
    • Anal incontinence and anal sphincter augmentation
    • Rectal prolapse

Tammy Pugh, MSN, R.N., ACNP

Acute Care Nurse Practitioner/Clinic Nurse Specialist

Mrs. Pugh is a graduate of the University of Mobile where she received a bachelor of science in nursing. While attending, she was elected and served as president of the Student Nurses Association and spear headed health fairs to promote community health awareness. After graduation, she was employed at Mobile Infirmary in the surgical intensive care unit and received valuable experience in caring for patients with acute life threatening medical conditions. She also completed a dual degree and received a master's of science in nursing as an Acute Care Nurse Practitioner/Clinic Nurse Specialist. She received extended training in transplant nephrology. She is board certified through the American Nurses Credentialing Center as an Acute Care Nurse Practitioner. She also serves as a clinical preceptor for nurse practitioner students attending universities from around the state of Alabama. She is also an active member of Advanced Practitioner Society for Hematology and Oncology. Mrs. Pugh provides disease specific services to patients who have completed or receiving cancer treatment and require increased surveillance. She is involved in developing and providing comprehensive care in the areas first High Risk Cancer Clinic in which she identifies patients that have an increased risk of developing cancer.