
About PDEC
Portland Diabetes & Endocrinology Center, P.C., in Portland, Oregon, is one of the oldest and largest independent endocrinology clinics in the United States.
Why choose us?
The roots of our clinic go back to the 1920’s when insulin first became available for the treatment of diabetes. Through the years, PDEC physicians have been leaders in the research and advancement of treatment for endocrine diseases. All our physicians are certified as Diplomates in Endocrinology, Diabetes, and Metabolism by the American Board of Internal Medicine.
As a specialty clinic, PDEC does not provide primary care services. The majority of our patients are referred by their primary care providers who value the expertise of our doctors in diagnosing and treating hormonal disorders including problems with the thyroid, pancreas, pituitary or adrenal glands. Among the most common conditions treated are Diabetes Mellitus Types 1 and 2, Thyroid Disorders and Osteoporosis. If you believe you have an endocrine condition you should contact your primary care provider first. They can evaluate your symptoms and refer you to a specialist in our clinic if they think it is appropriate. Thank you for visiting our website and considering us to participate with you in your care.
Resources
Visit our Patient Resources page to learn more about some of the diseases we treat at PDEC, and download new patient forms, medical records release forms, and more.
Our regular office phone hours are 8:30am – 12:15pm and 1:30pm – 4:30pm Monday through Friday.
“I’ve been working with Jennifer Murdoch for several years now and my type 2 diabetes is under excellent control! It wasn’t always easy to get it there but she suggested changes over time and now my A1c is lower than it’s been in years. She suggested I try the Libre continuous glucose sensor and it immediately helped me manage my blood sugar levels without having to poke my finger. She helped me learn more about how other problems can come along with diabetes and makes sure we monitor for them at all my visits. Thank you Jennifer!”
Dr. Neifing, I want to thank you for having a staff that works so hard for your patients. I especially want to thank them for the hard work and cooperation in getting our Libre supplies. As you know, the insurance companies are not always easy to deal with but your staff has been diligent in their efforts to meet my needs.”
Type 1 Diabetes Mellitus
Type 2 Diabetes Mellitus
Research has provided a plethora of treatment options for patients with Type 2 Diabetes. PDEC providers work with each individual patient to find the best and most cost effective treatment option for them.

RFA for Thyroid Nodules
RFA (Radio Frequency Ablation) is a non-surgical solution for shrinking thyroid nodules. RFA is performed in the comfort our office rather than an outside facility or surgical center. For more information on this procedure please contact our office.

Thyroid Cancer
PDEC’s board certified endocrinologists are leaders in the diagnosis and treatment of thyroid cancer, treating over 700 thyroid cancer patients who have struggled with this devastating illness. Along with the various treatment options for this multi-faceted disease, our caring staff is skilled at addressing the specific needs of patients and their families.

Osteoporosis
Treatment options for osteoporosis have greatly increased in recent years. Every year PDEC providers help nearly 2,000 patients better understand what they can do to strengthen bones and decrease their risk of fracture

Patient Portal

Patient Resources

Patient Forms & Info
Patient forms and information about insurance, medicare, referrals and authorizations, copayments, balances, and more.
