Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joel Eric Ringdahl, PHD
Behavior Analyst in Carbondale, IL · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427218585
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Registry record
Entity type Individual (Type 1)
Name Joel Eric Ringdahl
Credential PHD
Sex Male
Practice address 500c S Lewis Ln, Carbondale, IL, 62901
Phone (618) 453-8295
Fax (618) 453-6386
Enumeration date Jun 12, 2008
Last updated in NPPES Mar 5, 2013
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-12-12128 (IL) 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.
Frequently asked questions
Where does Joel Ringdahl practice?
The practice location on file with NPPES is in Carbondale, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joel Ringdahl?
The National Provider Identifier (NPI) for Joel Ringdahl is 1427218585, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-05.