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

Dr. John Francis Koloski, DC

Individual provider Chiropractor · NPI 1235412859

Dr. John Francis Koloski, DC is registered under Chiropractic in Arnold, Maryland. Qualified in 2011, 15 years ago. Accepts Medicare assignment. Licensed in Maryland and New York.

Years since qualifying
15
Licensed in
MD, NY
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

1460 Ritchie Hwy Ste # 206
Arnold, MD 21012-2730 Not confirmed with CMS for 11 years — call before visiting
Phone: (410) 757-8989
Fax: (410) 757-9139
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence S03718 (MD)
Chiropractor Taxonomy 111N00000X · Licence X012084 (NY)

Record details

NPI number1235412859
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedSeptember 20, 2011
Last updated in NPPESMarch 20, 2015

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients15
Services billed 78 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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