Dr. John Fredrick Mccarthy Jr., DC
Dr. John Fredrick Mccarthy Jr. is a Chiropractor provider (Chiropractor) practicing in Somerville, MA, registered in the NPPES registry with NPI 1629596549 since 2017. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1629596549 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. John Fredrick Mccarthy Jr. |
| Credential | DC |
| Sex | Male |
| Practice address | 71 HOLLAND ST, Somerville, MA, 02144 |
| Phone | 6176258707 |
| Enumeration date | 2017-08-30 |
| Last updated in NPPES | 2019-01-15 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 3517 | MA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: John Mccarthy, DC NPI: 1629596549 Taxonomy: 111N00000X (Chiropractor) Address: 71 HOLLAND ST, Somerville, MA, 02144
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1033822283 | Castera Bazile | Individual | Chiropractor | Somerville, MA |
Verify this record
Cross-check NPI 1629596549 against the authoritative CMS record: view Dr. John Fredrick Mccarthy Jr. 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 2026-07-10. Provider record last updated 2019-01-15.