Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ruth Anne Anne Rehfeldt, BCBA-D, PHD

Behavior Analyst in Naperville, IL · enumerated 2020 · practices at Elite Performance Counseling, LLC.

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

National Provider Identifier

1225631690

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Registry record

Entity type Individual (Type 1)

Name Dr. Ruth Anne Anne Rehfeldt

Credential BCBA-D, PHD

Sex Female

Practice address 101 N Washington St, Naperville, IL, 60540

Phone (618) 559-7296

Enumeration date Nov 18, 2020

Last updated in NPPES Nov 18, 2020

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Primary

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.

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Frequently asked questions

What is the NPI number for Ruth Anne Rehfeldt?

The National Provider Identifier (NPI) for Ruth Anne Rehfeldt is 1225631690, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ruth Anne Rehfeldt practice?

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

Other providers at this practice address

Browse all →

Elite Performance Counseling, LLC Professional Counselor · Naperville, IL NPI 1164811196 Amy Vernagallo Behavior Analyst · Naperville, IL NPI 1508448242

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-18.