Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael J Guzman, M.D.

Colon & Rectal Surgery Physician in Indianapolis, IN · enumerated 2008.

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

National Provider Identifier

1821251307

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Registry record

Entity type Individual (Type 1)

Name Michael J Guzman

Credential M.D.

Sex Male

Practice address 720 Eskenazi Ave, Indianapolis, IN, 46202

Phone (317) 880-4206

Fax (317) 880-0557

Enumeration date Jul 6, 2008

Last updated in NPPES Jan 18, 2021

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 01068934A (IN) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 036134991 (IL) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 01068934A (IN) Secondary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 01068934A (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
201105520	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

Is NPI 1821251307 active?

Yes, as of the latest NPPES snapshot, NPI 1821251307 is active (record last updated 2021-01-18).

How do I verify Michael Guzman's NPI record?

Cross-check NPI 1821251307 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-18.