NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nicholas Guastalli, DO

Internal Medicine Physician in Kankakee, IL · enumerated 2014.

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

National Provider Identifier

1275957334

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Nicholas Guastalli
Credential DO
Sex Male
Practice address 401 N Wall St Ste 102, Kankakee, IL, 60901
Phone (815) 928-5090
Fax (815) 928-5079
Enumeration date Feb 10, 2014
Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036143561 (IL) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

How do I verify Nicholas Guastalli's NPI record?
Cross-check NPI 1275957334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1275957334 active?
Yes, as of the latest NPPES snapshot, NPI 1275957334 is active (record last updated 2022-07-21).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.