Dr. Diana C. Negreanu
- Gender: Female
- Experience: 30 years
- Graduation year: 1991
- Sole propriator: No
- NPI: 1538282447
Dr. Diana C. Negreanu MD
Endocrinologist
She is located at 5050 Northeast Hoyt Street Suite 317 in Portland, OR 97213. Can help patients with the following: Cholecystitis, Fertility, Hypocalcemia, Obesity, Osteoporosis, Vitamin D Deficiency. Her National Provider Identifier (NPI) number is 1538282447. Appointment can be made via the phone number (503) 256-4096. She is affiliated with 2 practices and 5 hospitals.
Conditions treated
Dr. Diana C. Negreanu, being an endocrinologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Diana C. Negreanu.
- Abdominal Pain
- Achondroplasia
- Acute Pain
- Addison's Disease
- Amyloidosis
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Bone Loss
- Carcinoid Tumor
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cushing's Syndrome
- Cystitis
- Diabetes
- Diabetes Insipidus (DI)
- Diabetes Mellitus (DM) Type 1
- Diabetes Mellitus (DM) Type 2
- Diabetic Neuropathy
- Diarrhea
- Edema
- Fertility
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Goiter
- Graves' Disease
- Growth Hormone Imbalance
- Gynecomastia
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hypercalcemia
- Hyperglycemia
- Hyperlipidemia
- Hyperparathyroidism
- Hyperthyroidism
- Hypocalcemia
- Hypoglycemia
- Hyponatremia
- Hypoparathyroidism
- Hypothyroidism
- Influenza
- Inguinal Hernia
- Insulin Resistance (IR)
- Low Testosterone
- Metabolic Syndrome
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Thyroid Cancer
- Thyroid Disease
- Thyroiditis
- Urethritis
- Urinary Tract Infection (UTI)
- Vitamin D Deficiency
- Wilson-Turner Syndrome
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Diana C. Negreanu as in-network for the following 2026 plans.
Health plans
Providence Health Plan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 8 plans from Providence Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HSA Qualified 7500 Bronze - Choice Network | EPO · Expanded Bronze | Choice | Not accepting new patients |
| HSA-E Qualified 7500 Bronze - Signature Network | EPO · Expanded Bronze | EPO | Not accepting new patients |
| Providence Oregon Standard Bronze Plan - Choice Network | EPO · Expanded Bronze | Choice | Not accepting new patients |
| Providence Oregon Standard Bronze Plan - Signature Network | EPO · Expanded Bronze | EPO | Not accepting new patients |
| Providence Oregon Standard Gold Plan - Choice Network | EPO · Gold | Choice | Not accepting new patients |
| Providence Oregon Standard Gold Plan - Signature Network | EPO · Gold | EPO | Not accepting new patients |
| Providence Oregon Standard Silver Plan - Choice Network | EPO · Silver | Choice | Not accepting new patients |
| Providence Oregon Standard Silver Plan - Signature Network | EPO · Silver | EPO | Not accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Diana C. Negreanu is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Diana C. Negreanu is enrolled to bill Medicare as a Practitioner - Endocrinology .
Bills through: The Endocrine Clinic Pc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Amgen | $198 |
| AstraZeneca | $169 |
| Novo Nordisk | $62 |
Other
| Food and Beverage | $526 |
Studies
Graduated in 1991Additional Specialities
- Internist
- Specialist
Affiliated hospitals
Looking for more Endocrinologists?
Here are endocrinologists in Oregon you may want to explore.
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- Address: 1585 Liberty Street Southeast Salem, 97302, OR
- Gender: Female
- Address: 3680 Northwest Samaritan Drive Corvallis, 97330, OR
- Gender: Male
- Address: Suite 651 5050 Northeast Hoyt Street Portland, 97213, OR
- Gender: Female
- Address: 9450 Southwest Barnes Road Suite 100 Portland, 97225, OR
- Gender: Female
- Address: 3181 Southwest Sam Jackson Park Road Portland, 97239, OR
- Gender: Male
- Address: Suite 985 9135 Southwest Barnes Road Portland, 97225, OR
- Gender: Male
- Address: 3181 Southwest Sam Jackson Park Road Portland, 97239, OR
- Gender: Male
- Address: 10180 Southeast Sunnyside Road Clackamas, 97015, OR
- Gender: Female
- Address: 3181 Southwest Sam Jackson Park Road Portland, 97239, OR
- Gender: Male
- Address: Suite 985 9135 Southwest Barnes Road Portland, 97225, OR
Questions & Answers
Has Dr. Diana C. Negreanu affiliation with hospitals?
Dr. Diana C. Negreanu is affiliated with ADVENTIST MEDICAL CENTER. For the full list of hospitals see this list.
Does Dr. Diana C. Negreanu have affiliation with practices?
Dr. Diana C. Negreanu is affiliated with Darrell C Brett MD. For the full list of practices see this list.
Where can you meet with Dr. Diana C. Negreanu?
Dr. Diana C. Negreanu's office is located at 5050 Northeast Hoyt Street Suite 317 in Portland, OR 97213.
What conditions does Dr. Diana C. Negreanu treat?
Dr. Diana C. Negreanu provides treatment for Cholecystitis, Fertility, Hypocalcemia, Obesity, Osteoporosis, Vitamin D Deficiency. For the full list see this list.
Does Dr. Diana C. Negreanu accept insurance?
Dr. Diana C. Negreanu is listed in-network for 8 ACA Marketplace (Obamacare/HealthCare.gov) plans from Providence Health Plan. See the Marketplace plans section for details.