Clemens W. Bergwitz, MD


Endocrinology, Internal Medicine

Conditions & Treatments

Bone Disease, Calcium Disorders, Osteomalacia, Osteoporosis, Vitamin D Metabolism Disorder

(877) 925-3637
Accepting New Patients
Telehealth Visits


Clemens W.H. Bergwitz, MD, is an endocrinologist at Yale Medicine who sees patients with primary hyperparathyroidism, general endocrine disorders, hyperthyroidism, thyroid nodules, adrenal disorder, hypophosphatemic disorders and hypogonadism.

Dr. Bergwitz’s characterizes the endocrine system as the human body’s own data messaging system. “It sends information to regulate some of our body’s most critical functions,” he says. In addition to treating patients, Dr. Bergwitz conducts research on many of these conditions, and his lab has worked on projects that test various therapies for hereditary endocrine disorders. “I am really a physician-scientist. My patients inspire my research, which eventually leads back to the bedside,” he says.

Dr. Bergwitz believes that patients should be the expert of their own illness. He strives to explain conditions and treatments in plain language so that patients not only understand their disorder, but also the biological mechanisms behind it. “I’m interested in providing my patients with the information they need to not only understand their condition, but to empower them to take good care of themselves,” he says.





Affiliated With

Smilow Cancer Hospital, Yale Medicine


Smilow Cancer Hospital

35 Park Street
New Haven, CT 06519

Get Directions

(203) 200-2158

Yale Endocrinology

6 Devine Steet
North Haven, CT 06473

Get Directions

Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM
(203) 287-6101

Yale Endocrinology

789 Howard Ave
Dana Building - 2nd floor
New Haven, CT 06519

Get Directions

Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM
(203) 737-2812

Education & Training


Medizinische Hochschule in Hannover, Germany


Medizinische Hochschule in Hannover, Germany;Massachusetts General Hospital


Massachusetts General Hospital;Massachusetts General Hospital

Accepted Insurance

Insurance coverage regularly changes, please contact the doctor’s office directly to verify that your specific insurance plan is accepted.

  • aetna
  • anthem bc/bs
  • berkeley care network
  • cigna healthcare
  • community care network
  • connecticare
  • corvel
  • first health network
  • focus healthcare
  • great west
  • husky
  • medicaid
  • medicare
  • multiplan
  • oxford health plans
  • railroad medicare
  • tricare/champus
  • united healthcare
  • us family health plan
  • wellcare