Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marianne Sullivan, P.T.

Physical Therapist in Laguna Niguel, CA · enumerated 2006 · practices at Deborah Weinstein Physical Therapy.

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

National Provider Identifier

1134170442

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Registry record

Entity type Individual (Type 1)

Name Marianne Sullivan

Credential P.T.

Sex Female

Practice address 31271 Niguel Rd Ste J, Laguna Niguel, CA, 92677

Phone (949) 443-5442

Fax (949) 443-5436

Enumeration date May 12, 2006

Last updated in NPPES Nov 14, 2023

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT 18597 (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

How do I verify Marianne Sullivan's NPI record?

Cross-check NPI 1134170442 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1134170442 active?

Yes, as of the latest NPPES snapshot, NPI 1134170442 is active (record last updated 2023-11-14).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-14.