Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Joanna Lynn Arguello, PH.D.
Psychologist in Iowa City, IA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871925206
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Registry record
Entity type Individual (Type 1)
Name Dr. Joanna Lynn Arguello
Credential PH.D.
Sex Female
Practice address 221 E College St, Suite 212, Iowa City, IA, 52240
Phone (319) 338-5190
Fax (319) 354-3718
Enumeration date Aug 8, 2013
Last updated in NPPES Jun 30, 2026
Taxonomy & licenses
103TH0100X Health Service Psychologist Behavioral Health & Social Service Providers · License 078200 (IA) Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0058230 | Medicaid | IA | - |
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 Joanna Arguello?
Joanna Arguello is registered in NPPES with the primary taxonomy of Psychologist. 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.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-30.