Registry data as of Aug 27, 2026

Vivien Santos, M.D.

Hematology & Oncology Physician · Seattle, WA

Vivien Santos, M.D. is a hematology & oncology physician with a practice address in Seattle, Washington, and NPI 1013318245, issued on Sep 8, 2014. Check the license (Washington FE60476235, 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1013318245
Name
Vivien Santos
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
FE60476235 WA
Self-reported in NPPES; status is on the state search
Practice location
5049 38TH Avenue NE, Seattle, WA 98105
Phone
(206) 403-7265
Enumerated
Sep 8, 2014
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 Vivien Santos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license FE60476235    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.

Hematology & Oncology Physician providers in Washington

There are 400 hematology & oncology physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 400 in Washington → Every provider in Seattle →

Other hematology & oncology physician records in Washington

  1. Farnoush Abar, M.D.Seattle, WA1558560342
  2. Janis AbkowitzSeattle, WA1740366558
  3. David Aboulafia, MDSeattle, WA1043269392
  4. Shirali AgarwalSeattle, WA1972093052
  5. Amith Ahluwalia, MDWenatchee, WA1497231773
  6. Sharmila Ahmed, MDSeattle, WA1073512141
  7. Hani Alhashmi, M.D.Seattle, WA1841596582
  8. Naveed Ali, M.D.Seattle, WA1134569692
  9. Naif Aljohani, M.DSeattle, WA1487054573
  10. Aisha Alkhinji, MDSeattle, WA1770873614

Common questions

What is Vivien Santos, M.D.'s NPI number?

Vivien Santos, M.D.'s National Provider Identifier (NPI) is 1013318245, issued on Sep 8, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Vivien Santos, M.D. located?

The NPPES record lists a practice address at 5049 38TH Avenue NE, Seattle, WA, 98105. Phone: (206) 403-7265. Providers update this record themselves, so call before visiting.

How can I verify Vivien Santos, M.D.'s license?

NPPES lists Washington license number FE60476235, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.