Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mariana Van Der Merwe

Pharmacist in Fortuna, CA · enumerated 2008.

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

National Provider Identifier

1134371339

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mariana Van Der Merwe

Sex Female

Practice address 725 South Boulevard, Rite Aid Pharmacy, Fortuna, CA, 95540

Phone (707) 725-9314

Fax (707) 725-4056

Enumeration date Oct 21, 2008

Last updated in NPPES Oct 21, 2008

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RPH58934 (CA) Primary

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

Where does Mariana Van Der Merwe practice?

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

What is the NPI number for Mariana Van Der Merwe?

The National Provider Identifier (NPI) for Mariana Van Der Merwe is 1134371339, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-21.