Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ewen J Harrison, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1841647559

Ewen J Harrison, MD is registered under Family Practice in Clackamas, Oregon. Graduated from University of New Mexico School of Medicine in 2016, 10 years ago. Practices with Providence Health and Services Oregon, a 1,426-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Oregon.

Years since qualifying
10
Trained at
University of New Mexico School of Medicine
Licensed in
OR
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Clackamas, OR

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 10330 Se 32nd Ave, Milwaukie, OR 97222-6587 — (503) 513-8950

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD193244 (OR)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence PG187071 (OR)

Record details

NPI number1841647559
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 23, 2016
Last updated in NPPESMarch 11, 2021
Certification dateMarch 11, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF NEW MEXICO SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Providence Health And Services Oregon — 1426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients132
Services billed 299 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Providence Health and Services Oregon

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1426 clinicians in the practice; 12 are shown here.

Other providers in Clackamas