Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Catharine M Phillips-Bui, PHD
Psychologist in Iowa City, IA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609984012
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Registry record
Entity type Individual (Type 1)
Name Dr. Catharine M Phillips-Bui
Credential PHD
Sex Female
Practice address 201 E Washington St Unit 503, Iowa City, IA, 52240
Phone (319) 310-0158
Enumeration date Aug 26, 2006
Last updated in NPPES Jan 14, 2026
Taxonomy & licenses
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 |
|---|---|---|---|
| 39785 | Other | IA | BC BS |
| 237849 | Other | - | MIDLANDS CHOICE |
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 is the NPI number for Catharine Phillips-Bui?
The National Provider Identifier (NPI) for Catharine Phillips-Bui is 1609984012, a Type 1 (individual) record in the CMS NPPES registry.
Where does Catharine Phillips-Bui practice?
The practice location on file with NPPES is in Iowa City, IA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-14.