Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ronald Lynn Gaddis II
Behavior Analyst in Lawton, OK · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720333545
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Registry record
Entity type Individual (Type 1)
Name Ronald Lynn Gaddis II
Sex Male
Practice address 5335 Nw Cherry Ave, Lawton, OK, 73505
Phone (405) 639-0450
Enumeration date Jul 18, 2012
Last updated in NPPES Jul 18, 2012
Taxonomy & licenses
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
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.
What specialty is Ronald Gaddis?
Ronald Gaddis 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-18.