Summary

Dr. Diana Negreanu specializes in endocrinology with a focus on diabetes and metabolism, as well as internal medicine. She earned her medical degree from Universitatea De Medicina Si Farmacie Iuliu Hatieganu and completed her residency at Danbury Hospital. With 35 years of clinical experience, Dr. Negreanu brings extensive knowledge to her practice. She provides care in English.

Dr. Negreanu is affiliated with Adventist Health Portland and practices at The Endocrine Clinic in Portland, Oregon. She treats patients with thyroid conditions including thyroiditis and Hashimoto's thyroiditis, as well as osteoporosis. Her practice includes performing blood work such as complete blood counts and A1c testing to monitor diabetes management. Patients have given her an average rating of 4.5 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.5
  • 35 years of experience
  • speaks English
  • Danbury Hospital
  • 8 written reviews
  • 2 specialties
  • 14 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 3 office locations
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Diana Claudia Negreanu has 3 locations

The Endocrine Clinic

5050 NE Hoyt St Ste 317Portland, OR 97213
Mon9:00 am - 4:30 pm
Tue9:00 am - 4:30 pm
Wed9:00 am - 4:30 pm
Thu9:00 am - 4:30 pm
Fri9:00 am - 4:30 pm
SatClosed
SunClosed

The Endocrine Clinic

5050 NE Hoyt St Ste 418Portland, OR 97213
Mon9:00 am - 4:30 pm
Tue9:00 am - 4:30 pm
Wed9:00 am - 4:30 pm
Thu9:00 am - 4:30 pm
Fri9:00 am - 4:30 pm
SatClosed
SunClosed

Adventist Health Portland

10123 Se Market StPortland, OR 97216

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Dr. Diana Claudia Negreanu, MD
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Dr. Diana Claudia Negreanu, MDDr. Patrick James Gillette, MDDr. Claire SmithDr. Robina Lee, DO
Endocrinology, Diabetes & MetabolismFamily MedicineInternal MedicineOther
Accepts New Patients
4.5 
35 Years of Experience 42 Years of Experience 10 Years of Experience 9 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish
Portland , ORMedford , ORPORTLAND , ORLone Tree , CO
Med School: Universitatea De Medicina Si Farmacie Iuliu Hatieganu Med School: Centro De Estudios Univ Xochicalco A.A. Cuernavaca (1980) Med School: Duke University School Of Medicine Med School: Touro University Nevada College Of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. Diana Claudia Negreanu

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Diana Claudia Negreanu has the following 2 specialties

Specialty Expertise

Dr. Diana Claudia Negreanu has the following 14 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes Mellitus, Type 1
  • Diabetes, Type 2
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Internal Medicine

Certifications, License, & Education

35 Years Experience

Dr. Diana Claudia Negreanu holds an expired medical license in the state of Oregon.

Medical License

Medical Doctor with an expired medical license in the state of Oregon that expired in 2025.

Education & Training

Residency

Completed their residency at Danbury Hospital.

Medical School

Graduated from Universitatea De Medicina Si Farmacie Iuliu Hatieganu in 1991.

NPI Number

Dr. Negreanu's NPI number is 1538282447.

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Frequently Asked Questions

Which hospitals is Dr. Diana Negreanu affiliated with?
Dr. Diana Negreanu is affiliated with Adventist Health Portland.
Does Dr. Diana Negreanu accept virtual/telehealth appointments?
Dr. Diana Negreanu has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Diana Negreanu?
You can find contact information for Dr. Diana Negreanu here on Vitals.
Does Dr. Diana Negreanu accept my insurance?
You can see the insurance plans that Dr. Diana Negreanu accepts on their Vitals profile.
What languages does Dr. Diana Negreanu speak?
Dr. Diana Negreanu speaks English.

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