Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John B Hamann, ED D

Clinical Child & Adolescent Psychologist in River Falls, WI · enumerated 2006 · practices at St. Croix Psychological Clinic.

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

National Provider Identifier

1427168079

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. John B Hamann

Credential ED D

Sex Male

Practice address 258 Riverside Dr, River Falls, WI, 54022

Phone (715) 425-7031

Fax (715) 425-1055

Enumeration date Aug 30, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

103TA0700X Adult Development & Aging Psychologist Behavioral Health & Social Service Providers · License 371-057 (WI) Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 371-057 (WI) Primary

103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers · License 371-057 (WI) Secondary

Other identifiers

Identifier	Type	State	Issuer
39062200	Medicaid	WI	-
19G68HA	Other	MN	BCBS OF MN

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 1427168079 active?

Yes, as of the latest NPPES snapshot, NPI 1427168079 is active (record last updated 2025-09-11).

How do I verify John Hamann's NPI record?

Cross-check NPI 1427168079 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Stephanie Hamann Mental Health Counselor · River Falls, WI NPI 1235249848 St. Croix Psychological Clinic Psychologist · River Falls, WI NPI 1912181538

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