Dr. Gregory S. Willis
- Gender: Male
- Experience: 22 years
- Graduated from: Oregon Health Sciences University School Of Medicine
- Graduation year: 1999
- Sole propriator: No
- NPI: 1417941600
Dr. Gregory S. Willis M.D.
Radiation Oncologist
He is located at 6489 Southwest Borland Road in Tualatin, OR 97062. Can help patients with the following: Colon Cancer, Cushing's Syndrome, Liver Cancer, Lung Cancer, Prostate Cancer, Salivary Gland Cancer. His National Provider Identifier (NPI) number is 1417941600. Appointment can be made via the phone number (503) 692-4843. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Gregory S. Willis, being an radiation oncologist, 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. Gregory S. Willis.
- Acoustic Neuroma
- Anal Cancer
- Bladder Cancer
- Bone Cancer
- Brain Cancer
- Breast Cancer
- Cancer
- Cervical Cancer
- Colon Cancer
- Cushing's Syndrome
- Hodgkin's Disease
- Leukemia
- Liver Cancer
- Lung Cancer
- MRI
- Penis Cancer
- Prostate Cancer
- Salivary Gland Cancer
- Sarcoma
- Testicular Cancer
- Vaginal Cancer
Procedures Performed by Dr. Gregory S. Willis
Medicare Enrollment
Dr. Gregory S. Willis is enrolled to bill Medicare as a Practitioner - Radiation Oncology .
Bills through: St Vincent Hospital
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
| Pfizer | $100 |
| Varian Medical Systems | $15 |
Other
| Promotional Speaking or Service | $100 |
| Food and Beverage | $16 |
Studies
OREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1999Additional Specialities
- Radiologist
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Questions & Answers
Does Dr. Gregory S. Willis have affiliation with practices?
Dr. Gregory S. Willis is affiliated with Meridian Park Radiation Oncolog Center.
What conditions does Dr. Gregory S. Willis treat?
Dr. Gregory S. Willis provides treatment for Colon Cancer, Cushing's Syndrome, Liver Cancer, Lung Cancer, Prostate Cancer, Salivary Gland Cancer. For the full list see this list.
Has Dr. Gregory S. Willis affiliation with hospitals?
Dr. Gregory S. Willis is affiliated with MEMORIAL MEDICAL CENTER.
Where can you meet with Dr. Gregory S. Willis?
Dr. Gregory S. Willis's office is located at 6489 Southwest Borland Road in Tualatin, OR 97062.