Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Mark Cirks, DC

Individual provider Chiropractor · NPI 1336488170

Dr. Mark Cirks, DC is registered under Chiropractic in Humboldt, Iowa. Graduated from Northwestern College of Chiropractic in 2012, 14 years ago. Practices with Humboldt Spine and Rehab PC, a 2-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
14
Trained at
Northwestern College of Chiropractic
Licensed in
IA
In the registry since
2013
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

1201 6th Ave N
Humboldt, IA 50548-1102 Not confirmed with CMS for 13 years — call before visiting
Phone: (515) 368-0086
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 007613 (IA)

Record details

NPI number1336488170
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedFebruary 13, 2013
Last updated in NPPESFebruary 13, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCHIROPRACTIC
Medical schoolNORTHWESTERN COLLEGE OF CHIROPRACTIC
Graduated 2012 (14 years in practice)
Group practice Humboldt Spine And Rehab Pc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients135
Services billed 911 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Humboldt Spine and Rehab PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Humboldt