NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Trina Gwendolyn Mann, DPT

Physical Therapist in Mill Valley, CA · enumerated 2006 · practices at The Knee Joint Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1730247347

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Registry record

Entity type Individual (Type 1)
Name Ms. Trina Gwendolyn Mann
Credential DPT
Sex Female
Practice address 23 Reed Blvd, Mill Valley, CA, 94941
Phone (415) 383-1669
Fax (414) 156-3413
Enumeration date Dec 5, 2006
Last updated in NPPES Apr 25, 2012

Taxonomy & licenses

2251X0800X Orthopedic Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 33356 (CA) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT credential

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.

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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 Trina Mann?
Trina Mann 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 2012-04-25.