Dr. Fred L Holtz, PH.D.
Dr. Fred L Holtz is a Psychologist provider (Psychologist) practicing in Plainview, NY, registered in the NPPES registry with NPI 1629175039 since 2006. The credential PHD stands for Doctor of Philosophy. Practices at Fred Holtz (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1629175039 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Fred L Holtz |
| Credential | PH.D. |
| Sex | Male |
| Practice address | Plainview, NY, 11803 |
| Phone | 5168884357 |
| Fax | 5165131456 |
| Enumeration date | 2006-09-20 |
| Last updated in NPPES | 2024-09-27 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103T00000X | Psychologist | Primary | 010194-1 | NY |
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: Fred Holtz, PH.D. NPI: 1629175039 Taxonomy: 103T00000X (Psychologist) Address: Plainview, NY, 11803
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1194031674 | Melissa Kiner | Individual | Psychologist | Plainview, NY |
| 1972099232 | Robert O'Connor | Individual | Social Worker | Plainview, NY |
| 1134747660 | Jessica Weller | Individual | Marriage & Family Therapist | Plainview, NY |
| 1205572088 | Ian Neville | Individual | Mental Health Counselor | Plainview, NY |
| 1659092245 | Julissa Garcia | Individual | Psychologist | Plainview, NY |
| 1174362032 | Fred Holtz | Organization | Community/Behavioral Health Agency | Plainview, NY |
| 1598599961 | Nicole Hayden | Individual | Social Worker | Plainview, NY |
| 1619703014 | Eun Jee Pak | Individual | Mental Health Counselor | Plainview, NY |
Verify this record
Cross-check NPI 1629175039 against the authoritative CMS record: view Dr. Fred L Holtz 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
Where does Fred Holtz practice?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-09-27.