NPPES file of Aug 9, 2026

Sean Christopher Koskinen, M.D.

Diagnostic Radiology Physician · Richland, WA

Sean Christopher Koskinen, M.D. is a diagnostic radiology physician with a practice address in Richland, Washington, and NPI 1407821853, issued on Feb 21, 2006. Check the license (Washington MD00044464, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407821853
Name
Sean Christopher Koskinen
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
MD00044464 WA
Self-reported in NPPES; status is on the state search
Practice location
888 Swift Blvd, Richland, WA 99352
Phone
(509) 943-5616
Enumerated
Feb 21, 2006
Record last updated
Jan 23, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(509) 943-9272
Medicaid IDs
028433 OR
8462517 WA
Medicare enrollment
Enrolled (PECOS I20060607000267); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 1997
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 888 Swift Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Fnu Aakash, MDHospitalist Physician1124713771
  2. Wesley Ablemona, M.D.Hospitalist Physician1881004521
  3. Lisa AdeaPharmacist1679432892
  4. Chad Allen, ARNPAcute Care Nurse Practitioner1396218129
  5. Tanner Andre, PAPhysician Assistant1750862116
  6. Asma Arshia, M.B.B.SAnatomic Pathology & Clinical Pathology Physician1275113615

Verify Sean Christopher Koskinen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00044464    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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Industry payments in 2024: $42.60

1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sean Koskinen$42.60
  2. Specialty average$2,488.38

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Inland Imaging Associates PSSeattle, WA
  2. Inland Imaging LLCMissoula, MT
  3. Integra Imaging PSMissoula, MT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diagnostic Radiology Physician providers in Washington

There are 1,041 diagnostic radiology physician records in Washington.

All 1,041 in Washington → Every provider in Richland →

Other diagnostic radiology physician records in Washington

  1. Hanni Laura Aaltonen, MD, PHDTacoma, WA1558922047
  2. Alireza Abadi, MDSeattle, WA1659861326
  3. Mohamed AbdelmotlebSeattle, WA1134892656
  4. Asif Abdullah, M.D.Tacoma, WA1861620601
  5. Marita Acheson, M.D.Bellevue, WA1528087582
  6. Karen Ackerman, M.D.Tacoma, WA1164574554
  7. Chad Adams, M.D.Tacoma, WA1447691266
  8. Kathrin Ahl, M.D.Lynnwood, WA1790747863
  9. Ashkan Ahmadian, MDSeattle, WA1447711544
  10. Johan Ahn, MDTacoma, WA1972546240

Common questions

What is Sean Christopher Koskinen, M.D.'s NPI number?

Sean Christopher Koskinen, M.D.'s National Provider Identifier (NPI) is 1407821853, issued on Feb 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sean Christopher Koskinen, M.D. located?

The NPPES record lists a practice address at 888 Swift Blvd, Richland, WA, 99352. Phone: (509) 943-5616. Providers update this record themselves, so call before visiting.

How can I verify Sean Christopher Koskinen, M.D.'s license?

NPPES lists Washington license number MD00044464, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.