NPPES file of Aug 9, 2026

Nathan M. Mraz, MSW

Clinical Social Worker · Spokane, WA

Nathan M. Mraz, MSW is a clinical social worker with a practice address in Spokane, Washington, and NPI 1255622783, issued on May 2, 2011. Check the license (Washington LW60125324, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1255622783
Name
Nathan M. Mraz
Credential
MSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LW60125324 WA
Self-reported in NPPES; status is on the state search
Practice location
322 W North River Dr, Spokane, WA 99201
Phone
(509) 324-6464
Enumerated
May 2, 2011
Record last updated
Apr 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(509) 241-2056
Medicare enrollment
Enrolled (PECOS I20110715000142); accepts Medicare assignment
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 322 W North River Dr

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

  1. Christopher Altman, RRH, CDEPharmacist1578551420
  2. Kirsten Anderson, MDFamily Medicine Physician1639609803
  3. Walter Balek, MDFamily Medicine Physician1902916943
  4. Steven Blum, O.D.Optometrist1376680983
  5. Stacey Boomer, PA-CPhysician Assistant1790835932
  6. Brenda Bray, PHPharmacist1548483878

Verify Nathan M. Mraz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license LW60125324
    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
Find 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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Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF WashingtonSpokane, WA

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

Nathan M. Mraz among 6,382 clinical social worker records in Washington

Nathan M. Mraz, MSW is one of 6,382 clinical social worker records with a practice address in Washington. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 27% of them.

  • NPI issued2011 · 27% of these records are older, 70% newer
  • In a Medicare fileYes · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 15% of these records are
  • Graduated2004 · median 2010 among the 984 with a school on file
  • Record last updated2021 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

645 clinical social worker records list a practice address in Spokane

They are 645 of the 14,049 NPPES records with a practice address in Spokane, and 6,382 clinical social worker records in Washington.

The 8 clinical social worker records with the nearest ZIP codes

  1. Jeanne Corkill, L.W.Spokane, WA 992011932250453
  2. Lucy Depaolo, M.S.W., L.I.C.S.W.Spokane, WA 992011063556124
  3. Tracy Depledge, MSWSpokane, WA 992011730278250
  4. Cindi Fuller, MSWSpokane, WA 992011356400436
  5. Anne Marie Holmes, MSWSpokane, WA 992011174615694
  6. Kristine Mateer, LICSWSpokane, WA 992011457368599
  7. Sharon O'Brien, LICSWSpokane, WA 992011346385135
  8. David O'Shea, MSWSpokane, WA 992011689714891

Common questions

What is Nathan M. Mraz, MSW's NPI number?

Nathan M. Mraz, MSW's National Provider Identifier (NPI) is 1255622783, issued on May 2, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Nathan M. Mraz, MSW located?

The NPPES record lists a practice address at 322 W North River Dr, Spokane, WA, 99201. Phone: (509) 324-6464. Providers update this record themselves, so call before visiting.

How can I verify Nathan M. Mraz, MSW's license?

NPPES lists Washington license number LW60125324, 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. 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.