John F Maslar, D.C.
John F Maslar is a Chiropractor provider (Chiropractor) practicing in Springfield, MA, registered in the NPPES registry with NPI 1558311381 since 2006. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1558311381 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John F Maslar |
| Credential | D.C. |
| Sex | Male |
| Practice address | 868 MAIN ST, Springfield, MA, 01103 |
| Phone | 4137365491 |
| Fax | 4137464632 |
| Enumeration date | 2006-05-11 |
| Last updated in NPPES | 2007-07-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 2526 | MA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| Y35043 | Other | MA | BLUECROSS BLUESHIELD |
Copy-ready billing details
Provider: John Maslar, D.C. NPI: 1558311381 Taxonomy: 111N00000X (Chiropractor) Address: 868 MAIN ST, Springfield, MA, 01103
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1780674978 | Daniel Scicluna | Individual | Chiropractor | Springfield, MA |
| 1659321867 | Paulo Tereso | Individual | Chiropractor | Springfield, MA |
| 1609826833 | Chiropractic Healthcare Centers of Western Mass. | Organization | Chiropractor | Springfield, MA |
| 1760432785 | Andrea Callanan | Individual | Chiropractor | Springfield, MA |
| 1881625119 | John Maslar | Individual | Chiropractor | Springfield, MA |
| 1427759562 | Ergonomic Collaboration Group, LLC | Organization | Chiropractor | Springfield, MA |
Verify this record
Cross-check NPI 1558311381 against the authoritative CMS record: view John F Maslar on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-09.