Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Matthew James Irwin, DC

Individual provider Chiropractor · NPI 1306957402

Dr. Matthew James Irwin, DC is registered under Chiropractic in Irwin, Pennsylvania. Graduated from National College of Chiropractic in 1990, 36 years ago. Accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
36
Trained at
National College of Chiropractic
Licensed in
PA
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

600 Oak St
Irwin, PA 15642-3528 Not confirmed with CMS for 10 years — call before visiting
Phone: (724) 863-3226
Fax: (724) 864-9871
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC004460L (PA)

Record details

NPI number1306957402
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESApril 11, 2016

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolNATIONAL COLLEGE OF CHIROPRACTIC
Graduated 1990 (36 years in practice)
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 patients97
Services billed 911 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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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