NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nicholas Donald Gross

Emergency Medicine Physician in Olympia Fields, IL · enumerated 2016.

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

National Provider Identifier

1629432091

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Nicholas Donald Gross
Sex Male
Practice address 20201 Crawford Ave, Olympia Fields, IL, 60461
Phone (708) 747-4000
Enumeration date Apr 11, 2016
Last updated in NPPES Apr 15, 2024

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 02005559A (IN) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036.169818 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1629432091 active?
Yes, as of the latest NPPES snapshot, NPI 1629432091 is active (record last updated 2024-04-15).
How do I verify Nicholas Gross's NPI record?
Cross-check NPI 1629432091 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-15.