Back to search

William Christopher Chapin, MD

Primary Location:
Address 10101 SE Main St Ste 1001
Portland, OR 97216
Specialties: Endocrinology, Internal Medicine Patient Rating: Gender: Male


Dr. William Chapin is a board certified internal medicine physician and board certified endocrinologist. Dr. Chapin completed both his internal medicine and endocrinology training at Oregon Health Sciences University in Portland. His passion is to provide patients with the best combination of personalized care and evidence based medicine.

As an endocrinologist, Dr. Chapin cares for and manages treatment for a wide spectrum of endocrine disease with a special interest in thyroid disorders. He serves as the medical director for Adventist Health Medical Group Endocrine Center.

Having previously worked as an internal medicine physician to a medically underserved Latino population, Dr. Chapin has a strong dedication to service and outreach. He is fluent in Spanish and has conversational French skills.

Dr. Chapin lives in Portland with his wife and son. He is an outdoor enthusiast and avid fly fisherman.


  • American Board IM/Endocrinology,DiabetesMetabolism, Endocrinology, 2010
  • American Board of Internal Medicine, Internal Medicine, 2001


  • Medical School

    Drexel University College of Medicine

  • Internship

    Oregon Health & Science University - OHSU

  • Residency

    Oregon Health & Science University - OHSU

  • Fellowship

    Oregon Health & Science University - OHSU


Learn more about patient ratings
  • 11/30/2019
    Rating: 5

    overall care has been great.

  • 11/22/2019
    Rating: 5

    really appreciate Dr. Chaplin?s care and concern.

  • 07/17/2019
    Rating: 5

    This was my first appt. with *Dr. Chapin. He was very nice and thorough. He made feel very comfortable. I'm very happy I was referred to him.

  • 06/09/2019
    Rating: 5

    I continue to be very satisfied with the level of care I receive from Dr. Chapin. i'm in good hands (even better than Allstate! :-)


  • Primary Location Adventist Health Diabetes and Endocrine Center
    10101 SE Main St Ste 1001
    Portland, OR 97216
    (503) 255-3404 Map and directions