Mr. Peter Diskin, MSW
Mr. Peter Diskin is a Clinical Social Worker provider (Social Worker) practicing in Upper Montclair, NJ, registered in the NPPES registry with NPI 1538360789 since 2007.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1538360789 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. Peter Diskin |
| Credential | MSW |
| Sex | Male |
| Practice address | Upper Montclair, NJ, 07043 |
| Phone | 9737835030 |
| Enumeration date | 2007-05-29 |
| Last updated in NPPES | 2024-08-28 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1041C0700X | Clinical Social Worker | Primary | 44SC04780700 | NJ |
Copy-ready billing details
Provider: Peter Diskin, MSW NPI: 1538360789 Taxonomy: 1041C0700X (Clinical Social Worker) Address: Upper Montclair, NJ, 07043
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1649252032 | David Brandt | Individual | Clinical Social Worker | Upper Montclair, NJ |
| 1851358212 | Mary Cullen-Drill | Individual | Psychiatric/Mental Health Clinical Nurse Specialist | Upper Montclair, NJ |
| 1215043393 | Carol Porter | Individual | Counseling Psychologist | Upper Montclair, NJ |
| 1386755122 | Lisa Leidecker | Individual | Addiction (Substance Use Disorder) Counselor | Upper Montclair, NJ |
| 1043321656 | Cutillo Counseling & Consultation Services, Inc. | Organization | Clinical Social Worker | Upper Montclair, NJ |
| 1992802581 | Behnaz Pakizegi | Individual | Psychologist | Montclair, NJ |
| 1720185077 | Robert Levine | Individual | Psychologist | Montclair, NJ |
| 1598814766 | Rita Hoenicke | Individual | Clinical Social Worker | Upper Montclair, NJ |
Verify this record
Cross-check NPI 1538360789 against the authoritative CMS record: view Mr. Peter Diskin 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 2024-08-28.