NPPES file of Aug 9, 2026

Mark Cirks, DC

Chiropractor · Humboldt, IA

Mark Cirks, DC is a chiropractor with a practice address in Humboldt, Iowa, and NPI 1336488170, issued on Feb 13, 2013. Check the license (Iowa 007613, as entered in NPPES) with the Iowa 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
1336488170
Name
Mark Cirks
Credential
DC
Primary taxonomy
Chiropractor 111N00000X
License number
007613 IA
Self-reported in NPPES; status is on the state search
Practice location
1201 6TH Ave N, Humboldt, IA 50548
Phone
(515) 368-0086
Enumerated
Feb 13, 2013
Record last updated
Feb 13, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130712000612); accepts Medicare assignment
Medical or professional school
Northwestern College Of Chiropractic, 2012
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 1201 6TH Ave N

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

  1. Mitchell Nielsen, DCChiropractor1982049516

Verify Mark Cirks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 007613
    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 Iowa 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. Humboldt Spine And Rehab PCHumboldt, IA

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

Mark Cirks among 2,019 chiropractor records in Iowa

Mark Cirks, DC is one of 2,019 chiropractor records with a practice address in Iowa. 21% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 67% of them.

  • NPI issued2013 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 21% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2012 · median 2007 among the 1,145 with a school on file
  • Record last updated2013 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 chiropractor records list a practice address in Humboldt

They are 6 of the 53 NPPES records with a practice address in Humboldt, and 2,019 chiropractor records in Iowa.

The 8 chiropractor records with the nearest ZIP codes

  1. Michael Crowley, D. C.Humboldt, IA 505481982645164
  2. Gary GonnermanHumboldt, IA 505481366429318
  3. Mitchell Nielsen, DCHumboldt, IA 505481982049516
  4. Cynthia Pischke, DCHumboldt, IA 505481205836756
  5. Jacob Rittgers, D.C.Humboldt, IA 505481487083770
  6. Bruce PudenzGowrie, IA 505431912971698
  7. Brett Fehr, D.C.Laurens, IA 505541730245424
  8. James Bird, D.C.Emmetsburg, IA 505361346263050

Common questions

What is Mark Cirks, DC's NPI number?

Mark Cirks, DC's National Provider Identifier (NPI) is 1336488170, issued on Feb 13, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Mark Cirks, DC located?

The NPPES record lists a practice address at 1201 6TH Ave N, Humboldt, IA, 50548. Phone: (515) 368-0086. Providers update this record themselves, so call before visiting.

How can I verify Mark Cirks, DC's license?

NPPES lists Iowa license number 007613, as entered by the provider. Search the Iowa 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.