Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ronald Leonard Polito, M.D.

Internal Medicine Physician in La Canada, CA · enumerated 2012.

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

National Provider Identifier

1992053441

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Registry record

Entity type Individual (Type 1)

Name Ronald Leonard Polito

Credential M.D.

Sex Male

Practice address 4381 Shepherds Lane, La Canada, CA, 91011

Phone (818) 421-4446

Fax (818) 790-0118

Enumeration date Aug 15, 2012

Last updated in NPPES Aug 15, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License AFE22005 (CA) Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License AFE22005 (CA) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Ronald Polito practice?

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

What is the NPI number for Ronald Polito?

The National Provider Identifier (NPI) for Ronald Polito is 1992053441, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-15.