NPPES file of Aug 9, 2026

Thomas Carl Gustafson, D.O.

Family Medicine Physician · Seattle, WA

Thomas Carl Gustafson, D.O. is a family medicine physician with a practice address in Seattle, Washington, and NPI 1285669093, issued on Jul 11, 2006. Check the license (Washington OP00001187, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285669093
Name
Thomas Carl Gustafson
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
OP00001187 WA
Self-reported in NPPES; status is on the state search
Practice location
1717 NW Market St, Seattle, WA 98107
Phone
(206) 782-0500
Enumerated
Jul 11, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(206) 782-0502
Medicaid ID
1046325 WA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Thomas Carl Gustafson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP00001187
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Thomas Carl Gustafson among 5,534 family medicine physician records in Washington

Thomas Carl Gustafson, D.O. is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 58% newer
  • In a Medicare fileNo · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2007 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

871 family medicine physician records list a practice address in Seattle

They are 871 of the 41,956 NPPES records with a practice address in Seattle, and 5,534 family medicine physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 family medicine physician records with the nearest ZIP codes

  1. Jorielle Bautista, M.D.Seattle, WA 981071891733473
  2. Stephen Dudley, M.D.Seattle, WA 981071154358695
  3. Margaux Emanuel, MDSeattle, WA 981071326155136
  4. Charles Falzon, M.D.Seattle, WA 981071780655001
  5. Daniel Friedmann, M.D.Seattle, WA 981071598793960
  6. Thomas Jansen, D.O.Seattle, WA 981071861433906
  7. Cynthia Johnson, M.D.Seattle, WA 981071275576613
  8. Mark Moscovitz, M.D.Seattle, WA 981071295770402

Common questions

What is Thomas Carl Gustafson, D.O.'s NPI number?

Thomas Carl Gustafson, D.O.'s National Provider Identifier (NPI) is 1285669093, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Carl Gustafson, D.O. located?

The NPPES record lists a practice address at 1717 NW Market St, Seattle, WA, 98107. Phone: (206) 782-0500. Providers update this record themselves, so call before visiting.

How can I verify Thomas Carl Gustafson, D.O.'s license?

NPPES lists Washington license number OP00001187, 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.

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.