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

Dr. John Marshall Winckler, DC, DACO

Individual provider Orthopedic Chiropractor · NPI 1740585074

Dr. John Marshall Winckler, DC, DACO is a Chiropractic in Corvallis, Oregon. Graduated from Palmer College Chiropractic - Davenport in 1983, 43 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Minnesota and Oregon.

Years since qualifying
43
Trained at
Palmer College Chiropractic - Davenport
Licensed in
MN, OR
In the registry since
2011
Specialties on file
2
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

999 NW Circle Blvd
Corvallis, OR 97330-1408
Phone: (541) 754-2225
Fax: (541) 752-9086
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopedic Chiropractor (primary) Taxonomy 111NX0800X · Licence 4065 (OR)
Orthopedic Chiropractor Taxonomy 111NX0800X · Licence 2002 (MN)

Record details

NPI number1740585074
Entity typeIndividual (Type 1)
GenderMale
Credentials DC , DACO
Sole proprietorYes
NPI enumeratedJanuary 18, 2011
Last updated in NPPESJune 21, 2011

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolPALMER COLLEGE CHIROPRACTIC - DAVENPORT
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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