Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daniel W Larson, LDN

Registered Dietitian in Chicago, IL · enumerated 2018 · practices at Select Physical Therapy Orthopedic Services Inc.

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

National Provider Identifier

1891273108

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Registry record

Entity type Individual (Type 1)

Name Daniel W Larson

Credential LDN

Sex Male

Practice address 444 W Jackson Blvd, Chicago, IL, 60606

Phone (312) 627-0444

Fax (312) 648-0155

Enumeration date Jul 30, 2018

Last updated in NPPES Sep 12, 2018

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 164007258 (IL) 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.

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Frequently asked questions

What is the NPI number for Daniel Larson?

The National Provider Identifier (NPI) for Daniel Larson is 1891273108, a Type 1 (individual) record in the CMS NPPES registry.

Where does Daniel Larson practice?

The practice location on file with NPPES is in Chicago, IL. 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 2018-09-12.