Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Hls Endocrinology Pllc

Q: What is the NPI number for Hls Endocrinology Pllc?

The NPI for Hls Endocrinology Pllc is 1841976891, a Type 2 (organization) record in the CMS NPPES registry.

Endocrinology, Diabetes & Metabolism Physician in Mundelein, IL · enumerated 2023 · authorized official Olga Duchon, Doctor.

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

National Provider Identifier

1841976891

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Registry record

Entity type Organization (Type 2)

Legal business name Hls Endocrinology Pllc

Other name <Unavail>

Parent organization Hls Endocrinology

Practice address 333 E Il Route 83 Ste 100, Mundelein, IL, 60060

Phone (224) 585-9559

Fax (978) 506-2201

Enumeration date Jun 26, 2023

Last updated in NPPES Sep 15, 2023

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Olga Duchon

Title Doctor

Phone (773) 814-9248

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

Who is the authorized official for Hls Endocrinology Pllc?

NPPES lists Olga Duchon (Doctor) as the authorized official for this organization.

What is the NPI number for Hls Endocrinology Pllc?

The NPI for Hls Endocrinology Pllc is 1841976891, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-15.