Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Gregory Jay Chapman, DC

Individual provider Chiropractor · NPI 1366505737

Dr. Gregory Jay Chapman, DC is a Chiropractic in Missoula, Montana. Graduated from National College of Chiropractic in 1984, 42 years ago. Accepts Medicare assignment. Licensed in Montana.

Years since qualifying
42
Trained at
National College of Chiropractic
Licensed in
MT
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

1526 S Reserve St
Missoula, MT 59801-4756
Phone: (406) 721-5780
Fax: (406) 721-6487
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 0514 (MT)

Record details

NPI number1366505737
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedDecember 18, 2006
Last updated in NPPESNovember 26, 2007
Mailing address1526 S Reserve St, Missoula, MT 59801-4756

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolNATIONAL COLLEGE OF CHIROPRACTIC
Graduated 1984 (42 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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