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

Mateo Guanzon, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Dyer, IN · enumerated 2005.

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

National Provider Identifier

1629073366

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Registry record

Entity type Individual (Type 1)

Name Mateo Guanzon

Credential M.D.

Sex Male

Practice address Dyer, IN, 46311

Phone (219) 865-0893

Enumeration date Jun 17, 2005

Last updated in NPPES Mar 22, 2021

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

Taxonomy & licenses

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 01035781A (IN) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 01035781 (IN) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 01035781A (IN) Primary

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

Other identifiers

Identifier	Type	State	Issuer
100346800	Medicaid	IN	-
300010982	Medicaid	IN	-

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 Mateo Guanzon?

The National Provider Identifier (NPI) for Mateo Guanzon is 1629073366, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mateo Guanzon practice?

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

Other providers at this practice address

Browse all →

John Andress Clinical Cardiac Electrophysiology Physician · Dyer, IN NPI 1598746083 C Smith Interventional Cardiology Physician · Dyer, IN NPI 1083699193 Amit Kumar Cardiovascular Disease Physician · Dyer, IN NPI 1336197573 Susan Croner Nurse Practitioner · Dyer, IN NPI 1235240854 Alyssa Borkowski Family Nurse Practitioner · Dyer, IN NPI 1902447311

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-22.