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

Dr. Daniel Patrick Farrell, DC

Individual provider Chiropractor · NPI 1568575744

Dr. Daniel Patrick Farrell, DC is registered under Chiropractic in Ottawa, Illinois. Qualified in 2003, 23 years ago. Practices with Ottawa Chiropractic, a 3-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
23
Licensed in
IL
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

221 W Etna Rd Ste 6
Ottawa, IL 61350-5613 Not confirmed with CMS for 19 years — call before visiting
Phone: (815) 431-8303
Fax: (815) 431-8327
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X (IL)

Record details

NPI number1568575744
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedAugust 15, 2006
Last updated in NPPESJuly 9, 2007

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Ottawa Chiropractic — 3 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 patients47
Services billed 371 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 Ottawa Chiropractic

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

Other providers in Ottawa