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

Oscar Mauricio Sanchez, M.D.

Internal Medicine Physician in Mchenry, IL · enumerated 2005.

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

National Provider Identifier

1164426094

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Registry record

Entity type Individual (Type 1)

Name Oscar Mauricio Sanchez

Credential M.D.

Sex Male

Practice address Mchenry, IL, 60050

Phone (815) 578-0224

Fax (815) 578-0525

Enumeration date Jun 9, 2005

Last updated in NPPES Sep 14, 2011

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036095395 (IL) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 36095395 (IL) 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
036095395	Medicaid	IL	-

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 Oscar Sanchez's NPI record?

Cross-check NPI 1164426094 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1164426094 active?

Yes, as of the latest NPPES snapshot, NPI 1164426094 is active (record last updated 2011-09-14).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-14.