Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Louisa J Szarek, REGISTERED DIETITION

Registered Dietitian in Sacaton, AZ · enumerated 2010.

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

National Provider Identifier

1811200157

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Registry record

Entity type Individual (Type 1)

Name Ms. Louisa J Szarek

Credential REGISTERED DIETITION

Sex Female

Practice address 483 W. Seed Farm Rd., Sacaton, AZ, 85147

Phone (602) 528-1340

Fax (602) 528-1296

Enumeration date Jul 15, 2010

Last updated in NPPES Jul 15, 2010

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License LDN00091 (RI) Primary

Other identifiers

Identifier	Type	State	Issuer
0000	Other	AZ	MEDICARE PENDING

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 NPI 1811200157 active?

Yes, as of the latest NPPES snapshot, NPI 1811200157 is active (record last updated 2010-07-15).

How do I verify Louisa Szarek's NPI record?

Cross-check NPI 1811200157 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-15.