Departments and specialties

Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery.

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Displaying 1-7 out of 7 doctors available

Last Name Initial: H

  1. Thor R. Halfdanarson, M.D.

    Thor R. Halfdanarson, M.D.

    1. Oncologist
    2. Hematologist
    1. Rochester, MN
    Areas of focus:

    Chemotherapy for colon cancer, Pancreatic neuroendocrine tumor, Carcinoma of unknown primary, Neuroendocrine tumor, Gas...trointestinal stromal tumor

  2. Julie E. Hallanger Johnson, M.D.

    Julie E. Hallanger Johnson, M.D.

    1. Endocrinologist
    1. Rochester, MN
    Areas of focus:

    Ultrasound, Ultrasound-guided fine needle aspiration, Thyroid cancer, Pituitary tumor, Thyroid nodule, Adrenal cancer, ...Adrenal incidentaloma

  3. Samuel Han, M.D.

    Samuel Han, M.D.

    1. Gastroenterologist
    2. Therapeutic Endoscopist
    1. Rochester, MN
    Areas of focus:

    Endoscopic mucosal resection, Endoscopic ultrasound, ERCP, Extracorporeal shockwave therapy, Endoscopic ultrasound-guid...ed gallbladder drainage, Polyp, Pancreatic cancer, Pancreatic cyst, Barrett's esophagus, Pancreatic neuroendocrine tumor, Pancreatitis, Bile duct stricture, Bile duct stone, Necrotizing pancreatitis, Pancreatic insufficiency

  4. Rebecca Hibbert, M.D.

    1. Radiologist
    1. Rochester, MN
    Areas of focus:

    Ablation therapy, Bone marrow biopsy and aspiration, Thyroid ablation, Cryoablation for cancer, CT-guided drainage, Bon...e biopsy, CT-guided biopsy, Radiofrequency ablation for cancer, Bone tumor ablation, Tumor biopsy, Lung tumor ablation, Ultrasound-guided injection, Fine needle aspiration, Lymph node biopsy, Thyroid fine needle aspiration, Microwave ablation for cancer, Ultrasound-guided biopsy, Chest tube placement, Chest wall biopsy, Biopsy, Catheter insertion, Lung biopsy, Ultrasound-guided liver biopsy, Ultrasound-guided kidney biopsy, Ethanol sclerotherapy, Thyroid cancer, Kidney cancer, Thyroid nodule, Hepatocellular carcinoma, Liver cancer, Renal cell carcinoma, Desmoid tumor, Bone metastasis, Abscess, Pneumothorax, Adrenal cancer, Pleural effusion, Liver tumor

  5. Tina J. Hieken, M.D.

    Tina J. Hieken, M.D.

    1. Surgical Oncologist
    1. Rochester, MN
    Areas of focus:

    Minimally invasive surgery, Mastectomy, Breast cancer surgery, Lumpectomy, Modified radical mastectomy, Sentinel node b...iopsy, Breast biopsy, Sentinel lymph node surgery, Oncoplastic breast-conserving surgery, Lymphadenectomy, Nipple-sparing mastectomy, Skin-sparing mastectomy, Excisional biopsy, Prophylactic mastectomy, TVEC injection, Lymph node biopsy, Double mastectomy, Radioactive seed localization, Breast abscess drainage, Breast surgery, Breast duct excision, Melanoma surgery, Wire localization for breast surgery, Breast cancer, Melanoma, Invasive lobular carcinoma, Squamous cell carcinoma of the skin, Paget's disease of the breast, Inflammatory breast cancer, Recurrent breast cancer, Ductal carcinoma in situ, Lobular carcinoma in situ, Fibroadenoma, Atypical hyperplasia of the breast, Male breast cancer, Tubular breast cancer, Breast cysts and lumps, Merkel cell carcinoma, Triple-positive breast cancer, Triple-negative breast cancer, Medullary breast cancer, HER2-positive breast cancer, Squamous cell carcinoma of the breast, Invasive ductal carcinoma, Luminal A breast cancer, Phyllodes tumor, Luminal B breast cancer, Papillary breast cancer, Mucinous breast cancer, Stage 4 breast cancer, BRCA gene mutation, Paget's disease of the nipple, Atypical lobular hyperplasia, Atypical ductal hyperplasia

  6. Timothy J. Hobday, M.D.

    Timothy J. Hobday, M.D.

    1. Oncologist
    1. Rochester, MN
    Areas of focus:

    Chemotherapy for breast cancer, Chemotherapy for colon cancer, Breast cancer, Pancreatic neuroendocrine tumor, Neuroend...ocrine tumor

  7. Matthew T. Houdek, M.D.

    Matthew T. Houdek, M.D.

    1. Orthopedic Surgeon
    2. Surgical Oncologist
    1. Rochester, MN
    Areas of focus:

    Amputation, Joint replacement surgery, Rotationplasty, Limb salvage surgery, Sarcoma, Bone cancer, Chondrosarcoma, Oste...osarcoma, Bone metastasis, Soft tissue sarcoma, Merkel cell carcinoma, Solitary fibrous tumor, Ewing sarcoma, Liposarcoma, Undifferentiated pleomorphic sarcoma, Angiosarcoma, Synovial sarcoma, Myxofibrosarcoma, Epithelioid sarcoma, Rhabdomyosarcoma, Dermatofibrosarcoma protuberans, Leiomyosarcoma, Malignant peripheral nerve sheath tumors, Bone tumor, Soft tissue tumor

Research

Mayo Clinic doctors and scientists are studying new ways to diagnose and treat neuroendocrine tumors.

Cancer research is conducted in coordination with Mayo Clinic Comprehensive Cancer Center. Mayo Clinic Comprehensive Cancer Center receives funding from the National Cancer Institute and is designated as a comprehensive cancer center. This designation recognizes the institution's scientific excellence and multidisciplinary resources focused on cancer prevention, diagnosis and treatment.

Publications

See a list of publications about neuroendocrine tumors by Mayo Clinic doctors on PubMed, a service of the National Library of Medicine.

Research Profiles

Oct. 18, 2025

Living with neuroendocrine tumors?

Connect with others like you for support and answers to your questions in the Neuroendocrine Tumors (NETs) support group on Mayo Clinic Connect, a patient community.

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