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

John Fullerton Barrett, MD

Individual provider Internal Medicine Physician · NPI 1790772911

John Fullerton Barrett, MD practises Internal Medicine in Ilwaco, Washington. Graduated from University of Colorado School of Medicine, Denver in 1996, 30 years ago. Practices with Knd Development 59 LLC, a 170-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
30
Trained at
University of Colorado School of Medicine, Denver
Licensed in
WA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

174 1st Ave N
Ilwaco, WA 98624-9137
Phone: (360) 642-3181
Fax: (360) 642-6329
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD.MD.70159147 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD.MD.70159147 (WA)

Record details

NPI number1790772911
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 3, 2005
Last updated in NPPESSeptember 15, 2026
Certification dateSeptember 15, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 1996 (30 years in practice)
Group practice Knd Development 59 Llc — 170 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients42
Services billed 301 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.

Colleagues at Knd Development 59 LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 170 clinicians in the practice; 12 are shown here.

Other providers in Ilwaco