Grant Thomas Chyz, D.D.S.
Dentist · Seattle, WA
Grant Thomas Chyz, D.D.S. is a dentist with a practice address in Seattle, Washington, and NPI 1275615981, issued on Oct 20, 2006. Check the license (Washington 5900, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Grant Thomas Chyz
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 5900 WA
Self-reported in NPPES; status is on the state search - Practice location
- 509 Olive Way Ste 1142, Seattle, WA 98101
- Phone
- (206) 622-7642
- Enumerated
- Oct 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (206) 622-2743
- Entity
- Type 1 · individual
Also registered at 509 Olive Way Ste 1142
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brendan Lopez, D.D.S.Dentist1871047902
Verify Grant Thomas Chyz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 5900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Dentist providers in Washington
There are 2,767 dentist records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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Common questions
What is Grant Thomas Chyz, D.D.S.'s NPI number?
Grant Thomas Chyz, D.D.S.'s National Provider Identifier (NPI) is 1275615981, issued on Oct 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Grant Thomas Chyz, D.D.S. located?
The NPPES record lists a practice address at 509 Olive Way Ste 1142, Seattle, WA, 98101. Phone: (206) 622-7642. Providers update this record themselves, so call before visiting.
How can I verify Grant Thomas Chyz, D.D.S.'s license?
NPPES lists Washington license number 5900, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity 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. 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.