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 1-10 out of 11 doctors available

Last Name Initial: W,J

  1. Manoj K. Jain, M.D.

    Manoj K. Jain, M.D.

    1. Radiologist
    2. Nuclear Medicine Specialist
    1. Jacksonville, FL
    Areas of focus:

    PET/MRI scan, Thyroid scan, Nuclear medicine scan, Positron emission tomography scan, Neuroendocrine tumor, Pancreatic ...neuroendocrine tumor

  2. James W. Jakub, M.D.

    James W. Jakub, M.D.

    1. Surgical Oncologist
    1. Jacksonville, FL
    Areas of focus:

    Mastectomy, Breast surgery, Breast cancer surgery, Lymphadenectomy, Sentinel node biopsy, Melanoma surgery, Minimally i...nvasive surgical staging, Nipple-sparing mastectomy, Sentinel lymph node surgery, Modified radical mastectomy, Lymph node biopsy, Double mastectomy, Breast cancer, Melanoma, Merkel cell carcinoma

  3. Khalid A. Jazieh, M.B.B.S.

    Khalid A. Jazieh, M.B.B.S.

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

    Chemotherapy, Clinical trial, Colon cancer, Liver cancer, Hepatocellular carcinoma, Pancreatic cancer, Neuroendocrine t...umor, Stomach cancer, Cholangiocarcinoma, Esophageal cancer

  4. Zhaohui Jin, M.D.

    Zhaohui Jin, M.D.

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

    Hepatic artery infusion pump chemotherapy, CAR-T cell therapy, Chemotherapy for colon cancer, Colon cancer, Hepatocellu...lar carcinoma, Pancreatic cancer, Neuroendocrine tumor, Rectal cancer, Stomach cancer, Cholangiocarcinoma, Esophageal cancer, Anal cancer, Small bowel cancer

  5. Geoffrey B. Johnson, M.D., Ph.D.

    Geoffrey B. Johnson, M.D., Ph.D.

    1. Radiologist
    2. Nuclear Medicine Specialist
    1. Rochester, MN
    Areas of focus:

    PSMA therapy, Radiopharmaceutical therapy, Neuroendocrine tumor, Pancreatic neuroendocrine tumor

  6. Jeffrey E. Johnson, M.D.

    Jeffrey E. Johnson, M.D.

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

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

  7. Kirk J. Wangensteen, M.D., Ph.D.

    Kirk J. Wangensteen, M.D., Ph.D.

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

    Colon cancer, Neuroendocrine tumor, Familial adenomatous polyposis, Hereditary cancer syndrome, Stomach cancer, Duodena...l polyp, Colon polyps, Lynch syndrome, Juvenile polyposis syndrome, Peutz-Jeghers syndrome, Polyposis syndromes, Duodenal cancer, Stomach polyps

  8. Susanne G. Warner, M.D.

    Susanne G. Warner, M.D.

    1. Hepatobiliary and Pancreas Surgeon
    1. Rochester, MN
    Areas of focus:

    Gastrectomy, Hepatic artery infusion pump chemotherapy, Whipple procedure, Pancreatectomy, Laparoscopic surgery, Splene...ctomy, Cholecystectomy, Lymphadenectomy, Microwave ablation for cancer, Robotic surgery, Liver biopsy, Gastrostomy tube placement, Laparoscopic radiofrequency ablation, Rectal cancer surgery, Bile duct stone removal, Pancreatic enucleation, Liver resection, Minimally invasive pancreas surgery, Minimally invasive liver surgery, Small bowel resection, Bile duct resection, Liver cyst fenestration, Liver cyst removal, Laparoscopic splenectomy, Laparoscopic distal pancreatectomy , Lymph node biopsy, Liver cyst resection, Laparoscopic wedge resection of the stomach, Laparoscopic partial gastrectomy , Liver cancer, Hepatocellular carcinoma, Pancreatic cancer, Neuroendocrine tumor, Pancreatitis, Liver tumor, Cholangiocarcinoma, Duodenal polyp, Liver mass, Enlarged spleen, Pancreatic cyst, Liver cyst, Ampullary cancer, Gallbladder cancer, Stage 4 colorectal cancer, Pancreatic neuroendocrine tumor, Carcinoid tumor, Gastrointestinal stromal tumor, Bile duct stone, Small bowel cancer, Duodenal cancer, Intraductal papillary mucinous neoplasm, Liver hemangioma, Bile duct injury, Bile duct cyst, Gallbladder polyp, Bile duct stricture, Pancreatic disorder

  9. Nabil Wasif, M.D.

    Nabil Wasif, M.D.

    1. General Surgeon
    1. Phoenix, AZ
    Areas of focus:

    Pancreatic cancer, Neuroendocrine tumor, Stomach cancer, Melanoma, Pancreatic cyst, Sarcoma, Pancreatic neuroendocrine ...tumor, Gastrointestinal stromal tumor, Appendix cancer, Intraductal papillary mucinous neoplasm, Colon adenocarcinoma, Metastatic pancreatic cancer

  10. Dennis Wigle, M.D., Ph.D.

    Dennis Wigle, M.D., Ph.D.

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

    Esophagostomy, Lung surgery, VATS, Pectus excavatum surgery, Chest surgery, Esophageal dilation, Thoracoscopy, Pleurode...sis, Chest wall biopsy, Lung biopsy, Esophagectomy, Minimally invasive surgery, Bronchoscopy, Median sternotomy, Robotic surgery, Esophageal reconstruction, Thymectomy, Lung volume reduction surgery, Heller myotomy, Nuss procedure, Ravitch procedure, Pectus correction surgery, Peroral endoscopic myotomy, Esophagoscopy, Hiatal hernia repair, Hyperhidrosis surgery, Minimally invasive anti-reflux surgery, Lobectomy, VATS lobectomy, Wedge resection of lung, Mediastinotomy, Chest reconstruction, Mediastinoscopy, Carinal resection, Bleb resection, Decortication, Chest wall resection, Thoracotomy, Robotic lobectomy, Pneumonectomy, Minimally invasive lung resection, Chest wall reconstruction, Thoracoplasty, Robotic thymectomy, Segmentectomy, Video mediastinoscopy, Lung resection, Pleurectomy, Minimally invasive thymectomy, Minimally invasive esophagectomy, Robotic segmentectomy, Supercharged jejunal interposition, Extrapleural pneumonectomy, Robotic esophagectomy, Costochondral rib graft, Gastroesophageal reflux disease, Hiatal hernia, Achalasia, Chylothorax, Pneumothorax, Pectus excavatum, Pectus carinatum, Lung cancer, Mesothelioma, Soft tissue sarcoma, Lung nodule, Paraesophageal hernia, Congenital diaphragmatic hernia, Hyperhidrosis, Myasthenia gravis, Tracheal stenosis, Bronchial stenosis, Esophageal cancer, Nontuberculous mycobacteria lung disease, Lung disorder, Pleural effusion, Non-small cell lung cancer, Small cell lung cancer, Diaphragmatic hernia, Esophageal foreign body , Diaphragm paralysis, Sarcoma, Chondrosarcoma, Carcinoid tumor, Solitary fibrous tumor, Lung tumor, Liposarcoma, Pancoast tumor, Pleural disease, Mediastinal lymph node enlargement, Mediastinal tumor, Acinic cell carcinoma, Chest wall tumor, Thymic tumor, Lung mass, Malignant pleural effusion, Large cell lung cancer, Indeterminate pulmonary nodule, Squamous cell lung cancer, Sarcomatoid lung cancer, Multifocal lung cancer, Lung metastasis, Sliding hiatal hernia, Bronchogenic cyst, Young-onset esophageal cancer, Diaphragmatic eventration, Indeterminate pleural effusion, Chest wall deformity, Esophageal cyst, Mycobacterium avium complex lung disease, Stage 4 lung cancer, Tension pneumothorax

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.

Neuroendocrine Tumors (NETs) Discussions

hans051275
I recently had surgery to remove NET in small intestine

69 Replies Sat, Sep 05, 2026

Teresa, Volunteer Mentor
How do I eat after digestive tract surgery?

228 Replies Wed, Sep 02, 2026

taly
I'm newly diagnosed . . .small bowel NET at the ileocecal valve

43 Replies Wed, Aug 12, 2026

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