John Christopher Mattos, DMD
Dentist · Longview, WA
John Christopher Mattos, DMD is a dentist with a practice address in Longview, Washington, and NPI 1699325795, issued on Sep 19, 2019. Check the license (Washington DE60987782, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Christopher Mattos
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License number
- DE60987782 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1452 Hudson St Ste 200, Longview, WA 98632
- Phone
- (360) 425-9090
- Enumerated
- Sep 19, 2019
- Record last updated
- Sep 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,767 in Washington → Look up another NPI →
Also registered at 1452 Hudson St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lalee Lo, DDSGeneral Practice Dentistry1184139933
Verify John Christopher Mattos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license DE60987782Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average dentist in 2024
61 Medicare Part D claims for 38 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 22 claims were for opioids.
Most prescribed
- Acetaminophen-Codeine14 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.
John Christopher Mattos among 2,767 dentist records in Washington
John Christopher Mattos, DMD is one of 2,767 dentist records with a practice address in Washington. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 76% of them.
- NPI issued2019 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2019 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Washington
There are 2,767 dentist records in Washington.
All 2,767 in Washington → Every provider in Longview → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Thomas Bingham, D.D.S.Longview, WA 986321053574319
- Teresa Connors, DDSLongview, WA 986321528055365
- David Dodge, DMDLongview, WA 986321376011486
- Jared Doman, DMDLongview, WA 986321700051760
- Nicole Grant, DMDLongview, WA 986321497197941
- Robert Hammon, DDSLongview, WA 986321053476341
- Steven Kirkpatrick, DMDLongview, WA 986321508960006
- Chad Kleven, D.D.S.Longview, WA 986321013128438
Common questions
What is John Christopher Mattos, DMD's NPI number?
John Christopher Mattos, DMD's National Provider Identifier (NPI) is 1699325795, issued on Sep 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John Christopher Mattos, DMD located?
The NPPES record lists a practice address at 1452 Hudson St Ste 200, Longview, WA, 98632. Phone: (360) 425-9090. Providers update this record themselves, so call before visiting.
How can I verify John Christopher Mattos, DMD's license?
NPPES lists Washington license number DE60987782, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does John Christopher Mattos, DMD prescribe under Medicare Part D?
In 2024, John Christopher Mattos, DMD had 61 Medicare Part D claims for 38 beneficiaries; the average among dentist prescribers was 86. 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.