NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John E. Dalton, PH.D.

Clinical Psychologist in Great Lakes, IL · enumerated 2005.

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

National Provider Identifier

1528042280

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. John E. Dalton
Credential PH.D.
Sex Male
Practice address Great Lakes, IL, 60088
Enumeration date Dec 5, 2005
Last updated in NPPES Nov 2, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 830-057 (WI) Primary
103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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

How do I verify John Dalton's NPI record?
Cross-check NPI 1528042280 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1528042280 active?
Yes, as of the latest NPPES snapshot, NPI 1528042280 is active (record last updated 2007-11-02).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-02.