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Thyroid Doctor in San Francisco, CA

San Francisco Thyroid Center

The diagnosis and treatment of a thyroid or parathyroid disorder is a complex process that requires a diverse team of specialists. Bringing together surgeons, endocrinologists, pathologists, and radiologists, and offering advanced in-house technology, our team will evaluate, diagnose and treat your thyroid or parathyroid condition. Our monthly tumor board of experts reviews complex cases and delivers a unified diagnosis and recommended course of action. Not only does this minimize unnecessary confusion and stress for patients, it also saves crucial time for patients with serious conditions.

Common Thyroid and Parathyroid Conditions and Treatments

Conditions We Treat

  • Parathyroid disorders
  • Hyperpatathyroidism
  • Parathyroid adenoma
  • Cervical lymph node adenoma
  • Thyroid cancers
  • Anaplastic cancer
  • Follicular cancer
  • Medullary cancer
  • Multi-nodular goiter
  • Papillary cancer
  • Thyroid disorders and nodules
  • Graves disease
  • Hyperthyroidism
  • Hypothyroidism
  • Hashimoto’s disease

Surgery, Services, and Procedures We Do

  • Hemi and total thyroidectomy
  • In-office ultrasound
  • Medication treatment
  • Fine needle aspiration biopsy
  • Lymph node removal
  • Parathyroidectomy
  • Radioactive iodine

Providers We Refer To


Ian Jaffee, MD

Dr. Ian Jaffee is an attending pathologist and Director of Cytopathology at California Pacific Medical Center. He is also the Medical Director of the Sutter Health Share Lab.

Dr. Jaffee received a B.A. from Emory University and a medical degree from the University of Texas Medical School. He completed his residency in Anatomic and Clinical Pathology at Baylor College of Medicine, becoming chief resident. Dr. Jaffee has also served as a Cytopatholoy fellow at the University of California, San Francisco.

He is currently a member of the College of American Pathologists and the American Society of Clinical Pathologists.

Enodcrinology Staff

Karen Earle, MD

Dr. Karen Earle holds several positions at California Pacific Medical Center, including Medical Director of the Endocrine Division, Division Chief in the Section of Endocrinology, and Medical Director for the Center for Diabetes Services. She is also Assistant Clinical Professor of Endocrinology at University of California San Francisco.

Dr. Earle was also an Intern, Resident, Clinical Fellow, and Clinical Instructor in Endocrinology at UCSF. Prior to this, Dr. Earle received a B.A. from Wesleyan University and a medical degree from Yale University.

Diana Antoniucci, MD

Dr. Diana Antoniucci is an endocrinologist at California Pacific Medical Center and serves in the Division of Endocrinology, Diabetes, and Osteoporosis. Dr. Antoniucci also serves as Assistant Clinical Professor in the Division of Endocrinology at the University of California San Francisco School of Medicine.

Dr. Antoniucci received a B.A. from University of California Berkeley and a medical degree from Mayo Medical School. She completed her Internship and residency in Internal Medicine at Oregon Health Sciences University and became a fellow in endocrinology, diabetes, and metabolism at UCSF. Dr. Antoniucci also received a Master of Advanced Study in Clinical Research from UCSF.

She currently belongs to The Endocrine Society and the American Society for Bone and Mineral Research.

Melissa Weinberg, MD

Dr. Melissa Weinberg is an endocrinologist in the Department of Endocrinology, Diabetes, and Osteoporosis at California Pacific Medical Center, a member of the Physicians Foundation at CPMC, and Medical Director of Inpatient Diabetes. Dr. Weinberg also serves as an Assistant Clinic Professor at University of California Francisco.

Dr. Weinberg received an A.B. from Harvard College and a medical degree from Yale University School of Medicine. She completed her medical internship and residency at Brigham & Women’s Hospital and went on to become a fellow at UCSF, participating in the Training in Clinical Research program.

Kjersti Kirkeby, MD

Dr. Kjersti Kirkeby is an endocrinologist at California Pacific Medical Center and serves in the Division of Endocrinology, Diabetes, and Osteoporosis. After obtaining a medical degree from the University of Bergen in Norway, Dr. Kirkeby completed her residency in the Department of Internal Medicine at California Pacific Medical Center, where she was also chosen to serve as chief resident. Dr. Kirkeby recently completed an Endocrinology fellowship at Stanford University and currently holds an appointment as Adjunct Clinical Faculty Instructor at Stanford.

Nuclear Medicine

Stephen Bunker, MD

Stephen Bunker, MD is a full time physician, the Medical Director at Fusion Diagnostic Group and Chief of the Division of Nuclear Medicine at CPMC. He earned his medical degree from Creighton University, and performed his internship, residency and fellowship at Letterman Army Medical Center in San Francisco. Dr. Bunker is certified as a Diplomate with the American Board of Diagnostic Radiology and American Board of Nuclear Medicine. Dr. Bunker has a strong interest in physics and radiobiology, is highly published, and a frequent presenter at conferences.

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