John J Tierney, DO
John J Tierney is a Specialist provider (Specialist) practicing in Dedham, MA, registered in the NPPES registry with NPI 1417913047 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1417913047 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John J Tierney |
| Credential | DO |
| Sex | Male |
| Practice address | 200 PROVIDENCE HWY, SUITE 202, Dedham, MA, 02026 |
| Phone | 7814614543 |
| Enumeration date | 2006-04-22 |
| Last updated in NPPES | 2013-01-04 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | 76683 | MA |
DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential
Copy-ready billing details
Provider: John Tierney, DO NPI: 1417913047 Taxonomy: 174400000X (Specialist) Address: 200 PROVIDENCE HWY, SUITE 202, Dedham, MA, 02026
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1508846882 | Eugenio Martinez | Individual | Physical Medicine & Rehabilitation Physician | Dedham, MA |
| 1902850357 | Northeast Orthopedic Associates, PC | Organization | Adult Reconstructive Orthopaedic Surgery Physician | Dedham, MA |
| 1992801427 | Stephen Minard | Individual | Physical Therapist | Dedham, MA |
| 1194891267 | Agostino Iarrobino | Individual | Internal Medicine Physician | Dedham, MA |
| 1659436814 | Greater Boston Internal Medicine, PC | Organization | Internal Medicine Physician | Dedham, MA |
| 1396883880 | George Beauregard | Individual | Internal Medicine Physician | Dedham, MA |
| 1295873784 | Southwest Boston Internal Medicine Associates, PC | Organization | Internal Medicine Physician | Dedham, MA |
| 1669629556 | Emily Bojorquez | Individual | Physical Therapist | Dedham, MA |
Verify this record
Cross-check NPI 1417913047 against the authoritative CMS record: view John J Tierney 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.
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-01-04.