Gregory Alan Patton, M.D.
Radiation Oncology Physician · Portland, OR
Gregory Alan Patton, M.D. is a radiation oncology physician with a practice address in Portland, Oregon, and NPI 1275536948, issued on May 24, 2005. Check the license (Oregon MD23154, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Alan Patton
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- MD23154 OR
Self-reported in NPPES; status is on the state search - Practice location
- 265 N Broadway St, Portland, OR 97227
- Phone
- (503) 528-5013
- Enumerated
- May 24, 2005
- Record last updated
- Jun 2, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (503) 528-5255
- Medicaid IDs
- 1006524 WA
168689 OR - Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 115 in Oregon → Look up another NPI →
Also registered at 265 N Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Christiansen, P.A.Surgical Physician Assistant1851394878
- Lisa Clark, FNPFamily Nurse Practitioner1942276282
- Nicolaas De Wette, M.D.Radiation Oncology Physician1689677692
- Tony Ho, MDHematology & Oncology Physician1417949124
- Angela Kalisiak, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1386647147
- Jody Kujovich, MDHematology & Oncology Physician1972562809
Verify Gregory Alan Patton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD23154Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average radiation oncology physician in 2024
40 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gregory Alan Patton among 115 radiation oncology physician records in Oregon
Gregory Alan Patton, M.D. is one of 115 radiation oncology physician records with a practice address in Oregon. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 77% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2014 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Oregon
There are 115 radiation oncology physician records in Oregon.
All 115 in Oregon → Every provider in Portland → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Kiri Cook, MDPortland, OR 972271003235110
- Nicolaas De Wette, M.D.Portland, OR 972271689677692
- Kathleen Jaffe, M.D., MPHPortland, OR 972271386031649
- Thomas Johnson, M.D.Portland, OR 972271083601835
- Jaishanker Nautiyal, M.D.Portland, OR 972271043208820
- Akanksha Rajeurs, M.D.Portland, OR 972271194110247
- Aaron Sabolch, MDPortland, OR 972271033402995
- Diane Tsai, M.D.Portland, OR 972271730266966
Common questions
What is Gregory Alan Patton, M.D.'s NPI number?
Gregory Alan Patton, M.D.'s National Provider Identifier (NPI) is 1275536948, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Alan Patton, M.D. located?
The NPPES record lists a practice address at 265 N Broadway St, Portland, OR, 97227. Phone: (503) 528-5013. Providers update this record themselves, so call before visiting.
How can I verify Gregory Alan Patton, M.D.'s license?
NPPES lists Oregon license number MD23154, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Alan Patton, M.D. prescribe under Medicare Part D?
In 2024, Gregory Alan Patton, M.D. had 40 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.