Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Thomas M. Iannucci, M.D.

Obstetrics & Gynecology Physician in Orland Park, IL · enumerated 2011.

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

National Provider Identifier

1851687453

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. Thomas M. Iannucci

Credential M.D.

Sex Male

Practice address Orland Park, IL, 60467

Phone (708) 226-1273

Fax (708) 226-1274

Enumeration date Jun 22, 2011

Last updated in NPPES Jun 22, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 036.035492 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Thomas Iannucci practice?

The practice location on file with NPPES is in Orland Park, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Thomas Iannucci?

The National Provider Identifier (NPI) for Thomas Iannucci is 1851687453, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-22.