Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

1801075429

Q: What type of organization is 1801075429?

1801075429 is registered in NPPES as a Pulmonary Disease Physician (its primary provider taxonomy).

Pulmonary Disease Physician in Chicago, IL · enumerated 2025 · authorized official Petham Muthuswamy, President.

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

National Provider Identifier

1053293415

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name 1801075429

Practice address 7531 S Stony Island Ave Ste 169, Chicago, IL, 60649

Phone (773) 947-7715

Fax (773) 947-7715

Enumeration date Jul 24, 2025

Last updated in NPPES Jul 24, 2025

Taxonomy & classification

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Petham Muthuswamy

Title President

Phone (773) 562-6209

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

What type of organization is 1801075429?

1801075429 is registered in NPPES as a Pulmonary Disease Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-24.