Michael J. Naillon, MD
Internal Medicine Physician · Longview, WA
Michael J. Naillon, MD is an internal medicine physician with a practice address in Longview, Washington, and NPI 1881649994, issued on May 24, 2006. Check the license (Washington MD00046545, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Michael J. Naillon
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD00046545 WA
MD25719 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1615 Delaware St, Longview, WA 98632
- Phone
- (360) 414-2000
- Enumerated
- May 24, 2006
- Record last updated
- Feb 4, 2022
- Medicaid IDs
- 8455321 WA
026536 OR - Medicare enrollment
- Enrolled (PECOS I20060720000014); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 1615 Delaware St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brock Amos, CRNACertified Registered Nurse Anesthetist1295807717
- Kurt Anderson, PHARMDGeriatric Pharmacist1790231280
Verify Michael J. Naillon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00046545Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
368 Medicare Part D claims for 130 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Furosemide27 claims
- Cefdinir18 claims
- Metoprolol Succinate17 claims
- Potassium Chloride17 claims
- Prednisone15 claims
- Atorvastatin Calcium12 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 NorthwestLongview, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael J. Naillon among 3,079 internal medicine physician records in Washington
Michael J. Naillon, MD is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2003 · median 2006 among the 1,852 with a school on file
- Record last updated2022 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 internal medicine physician records list a practice address in Longview
They are 49 of the 1,933 NPPES records with a practice address in Longview, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Longview → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rebecca Becker, M.D.Longview, WA 986321881670768
- Bruce Bobek, D.O.Longview, WA 986321225028343
- R. Hughey, MDLongview, WA 986321316943590
- Zeba Kamal, MDLongview, WA 986321417931262
- Gregory Khurtsidze, M.D.Longview, WA 986321396721114
- Richard Kirkpatrick, M.D.Longview, WA 986321851377030
- Patricia Peterson, MDLongview, WA 986321992706436
- Lan Pham, M.D.Longview, WA 986321548264252
Common questions
What is Michael J. Naillon, MD's NPI number?
Michael J. Naillon, MD's National Provider Identifier (NPI) is 1881649994, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Naillon, MD located?
The NPPES record lists a practice address at 1615 Delaware St, Longview, WA, 98632. Phone: (360) 414-2000. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Naillon, MD's license?
NPPES lists Washington license number MD00046545, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael J. Naillon, MD prescribe under Medicare Part D?
In 2024, Michael J. Naillon, MD had 368 Medicare Part D claims for 130 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.