Prof. Stephen Nathaniel Calculator, PH.D.
Prof. Stephen Nathaniel Calculator is a Speech-Language Pathologist provider (Speech-Language Pathologist) practicing in Dover, NH, registered in the NPPES registry with NPI 1407975436 since 2007. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1407975436 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Prof. Stephen Nathaniel Calculator |
| Credential | PH.D. |
| Sex | Male |
| Practice address | Dover, NH, 03820 |
| Phone | 6037491787 |
| Fax | 6038624511 |
| Enumeration date | 2007-03-29 |
| 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 |
|---|---|---|---|---|
| 235Z00000X | Speech-Language Pathologist | Primary | 0255 | NH |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 23 | Other | NH | SPEECH PATHOLOGIST |
Copy-ready billing details
Provider: Stephen Calculator, PH.D. NPI: 1407975436 Taxonomy: 235Z00000X (Speech-Language Pathologist) Address: Dover, NH, 03820
Verify this record
Cross-check NPI 1407975436 against the authoritative CMS record: view Prof. Stephen Nathaniel Calculator 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 2007-07-08.