Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Clayton J. Toddy, PSY.D.
Psychologist in Sioux City, IA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881634277
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Registry record
Entity type Individual (Type 1)
Name Clayton J. Toddy
Credential PSY.D.
Sex Male
Practice address 600 4th St, Sioux City, IA, 51101
Phone (712) 234-0220
Fax (712) 234-0225
Enumeration date Jun 7, 2006
Last updated in NPPES Jan 25, 2011
Taxonomy & licenses
103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 00328 (IA) Secondary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00328 | Other | IA | IA LICENSE |
| I13094005 | Other | IA | MEDICARE PTAN |
| 00765 | Other | IA | LICENSE |
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 NPI 1881634277 active?
Yes, as of the latest NPPES snapshot, NPI 1881634277 is active (record last updated 2011-01-25).
How do I verify Clayton Toddy's NPI record?
Cross-check NPI 1881634277 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Eileen Middleton Physician Assistant · Sioux City, IA NPI 1285694059 Keith Karstens Clinical Psychologist · Sioux City, IA NPI 1366403677 Philip Muller Psychiatry Physician · Sioux City, IA NPI 1891756128 Katherine Murphy Clinical Social Worker · Sioux City, IA NPI 1811951023 Glenda Denherder Psychiatric/Mental Health Nurse Practitioner · Sioux City, IA NPI 1477596450 Associates for Psychiatric Services PC Psychiatry Physician · Sioux City, IA NPI 1598783490 Beth Harms Clinical Social Worker · Sioux City, IA NPI 1225045172 Angela Peters Clinical Psychologist · Sioux City, IA NPI 1003826959
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-25.