Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHN F MASLAR D.C.
NPI 1558311381
Chiropractor in Springfield, MA

Active since May 11, 2006
868 MAIN ST, SPRINGFIELD, MA 01103(413) 736-5491(413) 746-4632 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About John F Maslar D.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN F MASLAR D.C. (NPI 1558311381) is an individual chiropractor in Springfield, Massachusetts, licensed in Massachusetts (2526) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1558311381
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameJOHN F MASLARCredential: D.C.
Location Address868 MAIN STSpringfield, MA 01103-2105
Mailing Address128 Tannery RdWestfield, MA 01085-4841 · (413) 736-5491
Fax(413) 746-4632
Sole ProprietorNo
Enumeration DateMay 11, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1558311381 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License Licensed in MA · 2526
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
868 MAIN ST, Springfield, MA 01103

Other Identifiers 1

OtherY35043MA · Bluecross Blueshield

Accepted Insurance

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Chiropractor
868 MAIN ST
SPRINGFIELD, MA 01103
Chiropractor
868 MAIN ST
SPRINGFIELD, MA 01103
Chiropractor
868 MAIN ST
SPRINGFIELD, MA 01103
Chiropractor
868 MAIN ST
SPRINGFIELD, MA 01103
Chiropractor
868 MAIN ST
SPRINGFIELD, MA 01103
Chiropractor
868 MAIN ST
SPRINGFIELD, MA 01103

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Maslar's NPI number?

The NPI number for John Maslar is 1558311381. It was assigned to this individual provider in the NPPES registry on May 11, 2006.

Where is John Maslar located?

John Maslar practices at 868 Main St, Springfield, MA 01103. The listed phone number is (413) 736-5491.

What is John Maslar's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

What insurance does John Maslar accept?

Health plans from Anthem Blue Cross and Blue Shield list John Maslar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Maslar was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.