Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dianna Duddy, BCBA
Behavior Analyst in Wheaton, IL · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1962818260
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Registry record
Entity type Individual (Type 1)
Name Dianna Duddy
Credential BCBA
Sex Female
Practice address 0n465 Fanchon St, Wheaton, IL, 60187
Phone (630) 276-3085
Enumeration date Jul 8, 2014
Last updated in NPPES Jul 8, 2014
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-11-9298 (IL) Primary
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
What specialty is Dianna Duddy?
Dianna Duddy is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-08.