John S Baldwin, PHD
John S Baldwin is a Clinical Psychologist provider (Psychologist) practicing in Needham, MA, registered in the NPPES registry with NPI 1598732661 since 2006. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1598732661 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John S Baldwin |
| Credential | PHD |
| Sex | Male |
| Practice address | Needham, MA, 02492 |
| Phone | 7814492695 |
| Enumeration date | 2006-03-07 |
| Last updated in NPPES | 2012-11-30 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103TC0700X | Clinical Psychologist | Primary | 3985 | 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 Baldwin, PHD NPI: 1598732661 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Needham, MA, 02492
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1093705626 | Jacqueline Feuer | Individual | Internal Medicine Physician | Needham, MA |
| 1235112236 | Deanna Ricker | Individual | Ophthalmology Physician | Needham, MA |
| 1194765628 | David Stormberg | Individual | Psychiatry Physician | Needham, MA |
| 1306856083 | Marc Magier | Individual | General Practice Dentistry | Needham, MA |
| 1407962525 | Otto Todorov | Individual | Chiropractor | Needham, MA |
| 1063550176 | Lisa Kane | Individual | General Practice Dentistry | Needham, MA |
| 1780807859 | Internists Associated, P.C. | Organization | Primary Care Clinic/Center | Needham, MA |
| 1699987016 | Wendy Lewis | Individual | Clinical Social Worker | Needham, MA |
Verify this record
Cross-check NPI 1598732661 against the authoritative CMS record: view John S Baldwin 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 2012-11-30.