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

Dr. Alexander Duff, DC

Individual provider Chiropractor · NPI 1205398732

Dr. Alexander Duff, DC is registered under Chiropractic in Boulder, Colorado. Graduated from Life Chiropractic College - West in 2018, 8 years ago. Practices with Lyle Chiropractic PLLC, a 2-clinician group. Licensed in Colorado.

Years since qualifying
8
Trained at
Life Chiropractic College - West
Licensed in
CO
In the registry since
2019
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

3083 Walnut St
Boulder, CO 80301-2509
Phone: (303) 440-0500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 0007920 (CO)

Record details

NPI number1205398732
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedApril 3, 2019
Last updated in NPPESApril 3, 2019

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolLIFE CHIROPRACTIC COLLEGE - WEST
Graduated 2018 (8 years in practice)
Group practice Lyle Chiropractic Pllc — 2 clinicians
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 patients23
Services billed 293 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 Lyle Chiropractic PLLC

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

Other providers in Boulder