NPPES file of Aug 9, 2026

C. Mark Alder, MD

Diagnostic Radiology Physician · Spokane, WA

C. Mark Alder, MD is a diagnostic radiology physician with a practice address in Spokane, Washington, and NPI 1386631927, issued on Sep 29, 2005. Check the license (Washington MD60971889, 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
1386631927
Name
C. Mark Alder
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
MD60971889 WA
Self-reported in NPPES; status is on the state search
Practice location
801 S Stevens St, Spokane, WA 99204
Phone
(509) 363-7788
Enumerated
Sep 29, 2005
Record last updated
Sep 26, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(509) 363-7064
Medicaid ID
1386631927 WA
Medicare enrollment
Enrolled (PECOS I20191004001267); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 1995
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 801 S Stevens St

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

  1. Jodi Bailey, MDDiagnostic Radiology Physician1013965177
  2. Gregory Balmforth, MDDiagnostic Radiology Physician1780602367
  3. Logan Beebe, D.O.Diagnostic Radiology Physician1871970277
  4. John Bell, M.D.Diagnostic Radiology Physician1376726661
  5. Jayson Brower, MDVascular & Interventional Radiology Physician1346298361
  6. Scott Bruschwein, M.D.Diagnostic Radiology Physician1659799732

Verify C. Mark Alder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD60971889    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: $18.15

1 payment: food and beverage; the largest payer was Cook Medical 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. C. Alder$18.15
  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 2 group practices

  1. Inland Imaging LLCMissoula, MT
  2. Integra Imaging PSSeattle, WA

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 Spokane →

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 C. Mark Alder, MD's NPI number?

C. Mark Alder, MD's National Provider Identifier (NPI) is 1386631927, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is C. Mark Alder, MD located?

The NPPES record lists a practice address at 801 S Stevens St, Spokane, WA, 99204. Phone: (509) 363-7788. Providers update this record themselves, so call before visiting.

How can I verify C. Mark Alder, MD's license?

NPPES lists Washington license number MD60971889, 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.