Dr. Frederick William Willoughby, PH.D.

Dr. Frederick William Willoughby is a Psychologist provider (Psychologist) practicing in Temple, TX, registered in the NPPES registry with NPI 1497865075 since 2006. The credential PHD stands for Doctor of Philosophy.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1497865075
Entity type	Individual (Type 1)
Name	Dr. Frederick William Willoughby
Credential	PH.D.
Sex	Male
Practice address	Temple, TX, 76504
Phone	2547432866
Fax	2547430495
Enumeration date	2006-08-30
Last updated in NPPES	2025-09-11

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	23185	TX
103TA0400X	Addiction (Substance Use Disorder) Psychologist	Secondary	23185	TX

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
1221571414	Other	TX	PSYCHOLOGIST

Copy-ready billing details

Provider: Frederick Willoughby, PH.D.
NPI: 1497865075
Taxonomy: 103T00000X (Psychologist)
Address: Temple, TX, 76504

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1013977271	Katherine Jew	Individual	Internal Medicine Physician	Temple, TX
1205888690	Vicki Carter	Individual	Clinical Social Worker	Temple, TX
1649223801	Tammy Lewis	Individual	Clinical Social Worker	Temple, TX
1659325314	Jim Deaton	Individual	Social Worker	Temple, TX
1154368231	Christine Strohm	Individual	Social Worker	Temple, TX
1699704833	Karan Killgore	Individual	Audiologist	Temple, TX
1598799975	James Brown	Individual	Social Worker	Temple, TX
1598780678	Carolyn Greene	Individual	Social Worker	Temple, TX

Verify this record

Cross-check NPI 1497865075 against the authoritative CMS record: view Dr. Frederick William Willoughby 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 Frederick Willoughby practice?

The practice location on file with NPPES is in Temple, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Frederick Willoughby?

The National Provider Identifier (NPI) for Frederick Willoughby is 1497865075, a Type 1 (individual) record in the CMS NPPES registry.

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