Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Walter Robert Trenschel, PHD

Clinical Neuropsychologist in Ocean Ridge, FL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1841211505

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Registry record

Entity type Individual (Type 1)

Name Dr. Walter Robert Trenschel

Credential PHD

Sex Male

Practice address 5505 North Ocean Blvd, Lexington #101, Ocean Ridge, FL, 33435

Phone (561) 732-0123

Fax (561) 732-0123

Enumeration date Jul 21, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License PY0004569 (FL) Primary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PY0004569 (FL) Secondary

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
73913	Other	FL	BCBS

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 → Validate an NPI →

Frequently asked questions

Is NPI 1841211505 active?

Yes, as of the latest NPPES snapshot, NPI 1841211505 is active (record last updated 2025-09-11).

How do I verify Walter Trenschel's NPI record?

Cross-check NPI 1841211505 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.