Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary Susan Stoliker-Diaz, OTR/L, CHT

Hand Occupational Therapist in Ventura, CA · enumerated 2006.

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

National Provider Identifier

1619051935

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Mary Susan Stoliker-Diaz

Credential OTR/L, CHT

Sex Female

Practice address 3525 Loma Vista Rd Ste C, Ventura, CA, 93003

Phone (805) 652-6955

Fax (805) 652-6959

Enumeration date Oct 24, 2006

Last updated in NPPES Feb 12, 2026

Taxonomy & licenses

225XH1200X Hand Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT2135 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
OT2135	Other	CA	STATE LICENSE

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.

Read the full guide → Validate an NPI →

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 Mary Stoliker-Diaz?

Mary Stoliker-Diaz is registered in NPPES with the primary taxonomy of Hand Occupational Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-12.