Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Christi Lee Duffield, PT
Physical Therapist in San Diego, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1750366845
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Registry record
Entity type Individual (Type 1)
Name Christi Lee Duffield
Credential PT
Sex Female
Practice address 4060 4th Ave, #105, San Diego, CA, 92103
Phone (619) 299-5246
Fax (619) 299-5751
Enumeration date Dec 12, 2005
Last updated in NPPES Apr 22, 2015
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT 8087 (CA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| WPT8087A | Other | CA | MEDICARE PTAN |
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 Christi Duffield?
Christi Duffield is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-22.