Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Ann M Steinfeld, P.T.,O.C.S.

Physical Therapist in Costa Mesa, CA · enumerated 2006.

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

National Provider Identifier

1174542138

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ann M Steinfeld

Credential P.T.,O.C.S.

Sex Female

Practice address Costa Mesa, CA, 92626

Phone (714) 556-1600

Fax (714) 556-3737

Enumeration date Jul 19, 2006

Last updated in NPPES Jan 22, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT 12312 (CA) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT 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

What is the NPI number for Ann Steinfeld?

The National Provider Identifier (NPI) for Ann Steinfeld is 1174542138, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ann Steinfeld practice?

The practice location on file with NPPES is in Costa Mesa, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-22.