Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. David William Jantzen III, M.D.

Pediatric Cardiology Physician in Peoria, IL · enumerated 2007.

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

National Provider Identifier

1649451352

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Registry record

Entity type Individual (Type 1)

Name Mr. David William Jantzen III

Credential M.D.

Sex Male

Practice address 420 Ne Glen Oak Ave, Suite 301, Peoria, IL, 61603

Phone (309) 655-3453

Fax (309) 655-3410

Enumeration date Nov 21, 2007

Last updated in NPPES Jul 15, 2015

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 4301097945 (MI) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 5841 (NE) Secondary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 4301097945 (MI) Secondary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 036.138159 (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.

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Frequently asked questions

How do I verify David Jantzen's NPI record?

Cross-check NPI 1649451352 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649451352 active?

Yes, as of the latest NPPES snapshot, NPI 1649451352 is active (record last updated 2015-07-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-15.