NPPES file of Aug 9, 2026

Mary Ann K. Arndt, M.D.

Nephrology Physician · Spokane, WA

Mary Ann K. Arndt, M.D. is a nephrology physician with a practice address in Spokane, Washington, and NPI 1750458329, issued on Nov 29, 2006. Check the license (Washington MD30286879, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750458329
Name
Mary Ann K. Arndt
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
MD30286879 WA
MD157887 OR
Self-reported in NPPES; status is on the state search
Practice location
105 W 8TH Ave, Spokane, WA 99204
Phone
(509) 340-0930
Enumerated
Nov 29, 2006
Record last updated
Sep 13, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(509) 747-2054
Medicare enrollment
Enrolled (PECOS I20160926002168); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 2002
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 105 W 8TH Ave

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

  1. Janet Abadir, MDSurgery Physician1023117421
  2. Jamil Abou-Harb, MDPediatric Gastroenterology Physician1891712980
  3. Adnan Amin, MDPsychiatry Physician1508913492
  4. Kelly Anderson, MSN, ARNP-CFamily Nurse Practitioner1073844403
  5. Howard Ashby, MDPsychiatry Physician1245456102
  6. Marie Atkinson, M.D.Neurology Physician1447370168

Verify Mary Ann K. Arndt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD30286879
    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

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Bills Medicare through one group practice

  1. Providence Health And Services WashingtonSpokane, WA

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

Nephrology Physician providers in Washington

There are 284 nephrology physician records in Washington.

Other nephrology physician records in Washington

  1. Samer Abdulkhalek, MDSpokane, WA1205321262
  2. Christine Abrass, MDMercer Island, WA1578645529
  3. Suhail AhmadSeattle, WA1821173659
  4. Syeda Ahmad, M.DSeattle, WA1255742284
  5. Ravi Aiyer, MDSeattle, WA1942414123
  6. Razan Al Kudsi, MDBurien, WA1497790687
  7. Frederick Albrecht, M.D. PHDBremerton, WA1679592166
  8. Astier Alem, MDKirkland, WA1801849948
  9. Osama Amro, MD., MSSeattle, WA1154642643
  10. Wendy Anan, MDKent, WA1669673448

Common questions

What is Mary Ann K. Arndt, M.D.'s NPI number?

Mary Ann K. Arndt, M.D.'s National Provider Identifier (NPI) is 1750458329, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Ann K. Arndt, M.D. located?

The NPPES record lists a practice address at 105 W 8TH Ave, Spokane, WA, 99204. Phone: (509) 340-0930. Providers update this record themselves, so call before visiting.

How can I verify Mary Ann K. Arndt, M.D.'s license?

NPPES lists Washington license number MD30286879, 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.

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.