Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Northern Illinois Cardiovascular & Thoracic Specialists,LLC

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Arlington Heights, IL · enumerated 2006 · authorized official Keith Bowersox, Owner/Managing Partner.

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

National Provider Identifier

1700842390

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Registry record

Entity type Organization (Type 2)

Legal business name Northern Illinois Cardiovascular & Thoracic Specialists,LLC

Practice address 880 W Central Rd, Suite 5300, Arlington Heights, IL, 60005

Phone (847) 788-1553

Fax (847) 788-1585

Enumeration date Apr 24, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Keith Bowersox

Title Owner/Managing Partner

Phone (847) 788-1553

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 is the NPI number for Northern Illinois Cardiovascular & Thoracic Specialists,LLC?

The NPI for Northern Illinois Cardiovascular & Thoracic Specialists,LLC is 1700842390, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Northern Illinois Cardiovascular & Thoracic Specialists,LLC?

NPPES lists Keith Bowersox (Owner/Managing Partner) as the authorized official for this organization.

Providers at this address

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Cristian Speil Infectious Disease Physician · Arlington Heights, IL NPI 1346243730 Henry Rabinowitz Specialist · Arlington Heights, IL NPI 1063418564 Byron Eisenstein Specialist · Arlington Heights, IL NPI 1851397350 Vern Kerchberger Infectious Disease Physician · Arlington Heights, IL NPI 1396746046 Guy Kochvar Infectious Disease Physician · Arlington Heights, IL NPI 1558362079 James Ramsay Pediatrics Physician · Arlington Heights, IL NPI 1699767228 Randy Rich Hematology & Oncology Physician · Arlington Heights, IL NPI 1609863281 Richard Siegel Hematology & Oncology Physician · Arlington Heights, IL NPI 1730176322

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.