Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Earle W. Ruhnke Jr., PSYD

Q: What is the NPI number for Earle Ruhnke?

The National Provider Identifier (NPI) for Earle Ruhnke is 1538274345, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Psychologist in Northfield, IL · enumerated 2006 · practices at The Josselyn Center.

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

National Provider Identifier

1538274345

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Registry record

Entity type Individual (Type 1)

Name Dr. Earle W. Ruhnke Jr.

Credential PSYD

Sex Male

Practice address 405 Central Ave, Northfield, IL, 60093

Phone (847) 441-5600

Fax (847) 441-7968

Enumeration date Aug 20, 2006

Last updated in NPPES Jan 2, 2014

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 071-006474 (IL) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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

Where does Earle Ruhnke practice?

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

What is the NPI number for Earle Ruhnke?

The National Provider Identifier (NPI) for Earle Ruhnke is 1538274345, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-02.