Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael J. Naillon, MD

Individual provider Internal Medicine Physician · NPI 1881649994

Michael J. Naillon, MD is an Internal Medicine in Longview, Washington. Graduated from Oregon Health Sciences University School of Medicine in 2003, 23 years ago. Practices with Kaiser Foundation Health Plan of the Northwest, a 1,811-clinician group and accepts Medicare assignment. Licensed in Oregon and Washington.

Years since qualifying
23
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
OR, WA
In the registry since
2006
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

1615 Delaware St
Longview, WA 98632-2367
Phone: (360) 414-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD00046545 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD25719 (OR)

Record details

NPI number1881649994
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 24, 2006
Last updated in NPPESFebruary 4, 2022
Mailing address1230 7th Ave, Longview, WA 98632-3166

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Kaiser Foundation Health Plan Of The Northwest — 1811 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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