Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ronald J Cardoso, M.D.

Anesthesiology Physician in Livingston, NJ · enumerated 2006 · practices at Intralign Nj, PC.

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

National Provider Identifier

1891856456

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Registry record

Entity type Individual (Type 1)

Name Ronald J Cardoso

Credential M.D.

Sex Male

Practice address 94 Old Short Hills Road, Livingston, NJ, 07039

Phone (973) 322-5512

Fax (973) 660-9779

Enumeration date Dec 13, 2006

Last updated in NPPES Mar 8, 2017

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 25MA04887000 (NJ) 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
3938409	Medicaid	NJ	-

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 Ronald Cardoso?

The National Provider Identifier (NPI) for Ronald Cardoso is 1891856456, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ronald Cardoso practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-08.