Dr. John James Grimes, PH.D.
Dr. John James Grimes is a Specialist provider (Specialist) practicing in Dover, MA, registered in the NPPES registry with NPI 1780705152 since 2007. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1780705152 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. John James Grimes |
| Credential | PH.D. |
| Sex | Male |
| Practice address | Dover, MA, 02030 |
| Phone | 7817850305 |
| Enumeration date | 2007-04-03 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | PY 3988 | MA |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Copy-ready billing details
Provider: John Grimes, PH.D. NPI: 1780705152 Taxonomy: 174400000X (Specialist) Address: Dover, MA, 02030
Verify this record
Cross-check NPI 1780705152 against the authoritative CMS record: view Dr. John James Grimes 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
What specialty is John Grimes?
Is this the official NPI registry?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.