NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William James Tolan, PHD

Clinical Psychologist in State College, PA · enumerated 2006.

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

National Provider Identifier

1154420966

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. William James Tolan
Credential PHD
Sex Male
Practice address 110 Regent Ct, Suite 103, State College, PA, 16801
Phone (814) 237-0551
Fax (814) 237-0564
Enumeration date Sep 21, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PS003698L (PA) Primary
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
01715002 Other PA CBC
195489 Other PA BS

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

What is the NPI number for William Tolan?
The National Provider Identifier (NPI) for William Tolan is 1154420966, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Tolan practice?
The practice location on file with NPPES is in State College, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.