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

Dr. Mary Johnston, DC

Individual provider Chiropractor · NPI 1902965395

Dr. Mary Johnston, DC is a Chiropractic in Oceanside, New York. Graduated from New York Chiropractic College in 1988, 38 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in New York.

Years since qualifying
38
Trained at
New York Chiropractic College
Licensed in
NY
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

222 Merrick Rd
Oceanside, NY 11572-1429
Phone: (516) 623-3195
Fax: (516) 623-1077
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence X005570 (NY)

Record details

NPI number1902965395
Entity typeIndividual (Type 1)
GenderFemale
Credentials DC
Sole proprietorYes
NPI enumeratedDecember 8, 2006
Last updated in NPPESMarch 6, 2020
Certification dateMarch 6, 2020

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolNEW YORK CHIROPRACTIC COLLEGE
Graduated 1988 (38 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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