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

Dr. Nathan M Irwin, DC

Individual provider Chiropractor · NPI 1841210879

Dr. Nathan M Irwin, DC is registered under Chiropractic in Fort Collins, Colorado. Graduated from Palmer College Chiropractic - Davenport in 2005, 21 years ago. Licensed in Colorado.

Years since qualifying
21
Trained at
Palmer College Chiropractic - Davenport
Licensed in
CO
In the registry since
2006
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

2531 S Shields St Ste 2H
Fort Collins, CO 80526-1857 Not confirmed with CMS for 12 years — call before visiting
Phone: (970) 472-8333
Fax: (970) 472-8332
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 5759 (CO)

Record details

NPI number1841210879
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedJuly 20, 2006
Last updated in NPPESJanuary 9, 2014

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolPALMER COLLEGE CHIROPRACTIC - DAVENPORT
Graduated 2005 (21 years in practice)
Accepts Medicare assignment Not indicated

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 patients13
Services billed 102 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.

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