NPI Portal NPI Lookup & Verification

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

Dr. Cesar G Yu, M.D.

Specialist in Mount Vernon, IL · enumerated 2006 · practices at Mulvaney Rehab Services Ltd.

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

National Provider Identifier

1225135825

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Registry record

Entity type Individual (Type 1)
Name Dr. Cesar G Yu
Credential M.D.
Sex Male
Practice address Mount Vernon, IL, 62864
Phone (618) 244-7824
Enumeration date Sep 19, 2006
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 036-063758 (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
4100088 Other IL BLUE CROSS BLUE SHIELD
060006946 Other ID RAILROAD MEDICARE

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

Where does Cesar Yu practice?
The practice location on file with NPPES is in Mount Vernon, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Cesar Yu?
The National Provider Identifier (NPI) for Cesar Yu is 1225135825, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.