Karl Thomas Winston, PA
Physician Assistant · Portland, OR
Karl Thomas Winston, PA is a physician assistant with a practice address in Portland, Oregon, and NPI 1689791162, issued on Mar 22, 2007. Check the license (Oregon PA01140, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karl Thomas Winston
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA01140 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1015 NW 22ND Ave, Portland, OR 97210
- Phone
- (503) 413-7711
- Enumerated
- Mar 22, 2007
- Record last updated
- Mar 19, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070601000269); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,094 in Oregon → Look up another NPI →
Also registered at 1015 NW 22ND Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Temitope Adebayo, DPMStudent in an Organized Health Care Education/Training Program1043079411
- Darren Alexander, MDEmergency Medicine Physician1487678256
- Hasibullah Amir, DOStudent in an Organized Health Care Education/Training Program1093517831
- David Andrews, DOHospitalist Physician1144407123
- Reza Antoszewska, NPNurse Practitioner1770645251
- Jennifer Aponte, MDEmergency Medicine Physician1538180740
Verify Karl Thomas Winston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license PA01140Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average physician assistant in 2024
553 Medicare Part D claims for 299 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Albuterol Sulfate Hfa33 claims
- Triamcinolone Acetonide32 claims
- Gabapentin24 claims
- Hydrocortisone19 claims
- Doxycycline Monohydrate18 claims
- Prednisone18 claims
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.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl Thomas Winston among 2,094 physician assistant records in Oregon
Karl Thomas Winston, PA is one of 2,094 physician assistant records with a practice address in Oregon. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 16% of them.
- NPI issued2007 · 16% of these records are older, 78% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1997 · median 2017 among the 1,552 with a school on file
- Record last updated2009 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physician Assistant providers in Oregon
There are 2,094 physician assistant records in Oregon.
All 2,094 in Oregon → Every provider in Portland → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Scott Beyer, PA-CPortland, OR 972101295737997
- Robert Courtox, PAPortland, OR 972101184626970
- Scott Frazee, PA-CPortland, OR 972101710130075
- Arthur Haffey, R-PACPortland, OR 972101407014335
- Christine Li, PA-CPortland, OR 972101497985220
- Eileen McNulty, MPAS, PA-CPortland, OR 972101457743478
- Raquel Noonan, MPAS, PA-CPortland, OR 972101942691811
- Kathryn Peak, PA-CPortland, OR 972101821360348
Common questions
What is Karl Thomas Winston, PA's NPI number?
Karl Thomas Winston, PA's National Provider Identifier (NPI) is 1689791162, issued on Mar 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karl Thomas Winston, PA located?
The NPPES record lists a practice address at 1015 NW 22ND Ave, Portland, OR, 97210. Phone: (503) 413-7711. Providers update this record themselves, so call before visiting.
How can I verify Karl Thomas Winston, PA's license?
NPPES lists Oregon license number PA01140, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Karl Thomas Winston, PA prescribe under Medicare Part D?
In 2024, Karl Thomas Winston, PA had 553 Medicare Part D claims for 299 beneficiaries; the average among physician assistant prescribers was 830. 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.