Kathleen Balazy Jaffe, M.D., MPH
Radiation Oncology Physician · Portland, OR
Kathleen Balazy Jaffe, M.D., MPH is a radiation oncology physician with a practice address in Portland, Oregon, and NPI 1386031649, issued on Apr 23, 2015. Check the license (Oregon 203975, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathleen Balazy Jaffe
- Credential
- M.D., MPH
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 203975 OR
MD.MD.61148904 WA
Self-reported in NPPES; status is on the state search - Practice location
- Kaiser Permanente Interstate Radiation Oncology, Portland, OR 97227
- Phone
- (503) 280-2931
- Enumerated
- Apr 23, 2015
- Record last updated
- Jul 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20221121001797); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2014
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 115 in Oregon → Look up another NPI →
Verify Kathleen Balazy Jaffe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license 203975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average radiation oncology physician in 2024
19 Medicare Part D claims for 11 beneficiaries, 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.
Industry payments in 2024: $303.20
2 payments; by number, the most common kind was food and beverage; the largest payer was Novocure Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Marin Cancer Care, Inc.Greenbrae, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen Balazy Jaffe among 115 radiation oncology physician records in Oregon
Kathleen Balazy Jaffe, M.D., MPH 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 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 17% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2014 · median 2006 among the 85 with a school on file
- Record last updated2021 · 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
- Thomas Johnson, M.D.Portland, OR 972271083601835
- Jaishanker Nautiyal, M.D.Portland, OR 972271043208820
- Gregory Patton, M.D.Portland, OR 972271275536948
- Akanksha Rajeurs, M.D.Portland, OR 972271194110247
- Aaron Sabolch, MDPortland, OR 972271033402995
- Diane Tsai, M.D.Portland, OR 972271730266966
Common questions
What is Kathleen Balazy Jaffe, M.D., MPH's NPI number?
Kathleen Balazy Jaffe, M.D., MPH's National Provider Identifier (NPI) is 1386031649, issued on Apr 23, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Balazy Jaffe, M.D., MPH located?
The NPPES record lists a practice address at Kaiser Permanente Interstate Radiation Oncology, Portland, OR, 97227. Phone: (503) 280-2931. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Balazy Jaffe, M.D., MPH's license?
NPPES lists Oregon license number 203975, 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 Kathleen Balazy Jaffe, M.D., MPH prescribe under Medicare Part D?
In 2024, Kathleen Balazy Jaffe, M.D., MPH had 19 Medicare Part D claims for 11 beneficiaries; 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.