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

Dr. John R Greensfelder, DC

Individual provider Chiropractor · NPI 1871637207

Dr. John R Greensfelder, DC is a Chiropractic in Odenton, Maryland. Graduated from Los Angeles College of Chiropractic in 1996, 30 years ago. Accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
30
Trained at
Los Angeles College of Chiropractic
Licensed in
MD
In the registry since
2007
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

1350 Blair Dr Ste HH
Odenton, MD 21113-1333
Phone: (410) 674-8605
Fax: (410) 674-8608
Show map & directions

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

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence S01820 (MD)

Record details

NPI number1871637207
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedFebruary 18, 2007
Last updated in NPPESJuly 13, 2022
Certification dateJuly 13, 2022

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolLOS ANGELES COLLEGE OF CHIROPRACTIC
Graduated 1996 (30 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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