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

Dr. John G Merkling, DC

Individual provider Chiropractor · NPI 1821095589

Dr. John G Merkling, DC is a Chiropractic in Woodstock, Illinois. Graduated from Palmer College Chiropractic - Davenport in 1987, 39 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Arkansas, Illinois and Kentucky.

Years since qualifying
39
Trained at
Palmer College Chiropractic - Davenport
Licensed in
AR, IL, KY
In the registry since
2005
Specialties on file
3
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

126 S Jefferson St
Woodstock, IL 60098-3438
Phone: (815) 337-5500
Fax: (815) 337-5733
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 038006525 (IL)
Chiropractor Taxonomy 111N00000X · Licence 1129 (AR)
Chiropractor Taxonomy 111N00000X · Licence 3962 (KY)

Record details

NPI number1821095589
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedJuly 7, 2005
Last updated in NPPESJune 16, 2008

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolPALMER COLLEGE CHIROPRACTIC - DAVENPORT
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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