NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph J. Guarino Jr., M.D.

Cardiovascular Disease Physician in Toms River, NJ · enumerated 2006.

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

National Provider Identifier

1558479436

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Registry record

Entity type Individual (Type 1)
Name Dr. Joseph J. Guarino Jr.
Credential M.D.
Sex Male
Practice address 147 Route 37 W, Toms River, NJ, 08755
Fax (732) 240-1385
Enumeration date Aug 29, 2006
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MA41840 (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
0081391000 Other NJ AMERIHEALTH
1149139 Other NJ UNITED HEALTHCARE
2311418 Other NJ AETNA
P492463 Other NJ OXFORD
2198720 Other NJ GHI
0981946-004 Other NJ CIGNA
1832603 Medicaid NJ -
220501 Other NJ UNIFORM SERVICE FAMILY
1040481 Other NJ HORIZON NJ HEALTH
15457 Other NJ UNIVERSITY HEALTH PLAN
1K4984 Other NJ HEALTHNET

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 Joseph Guarino's NPI record?
Cross-check NPI 1558479436 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1558479436 active?
Yes, as of the latest NPPES snapshot, NPI 1558479436 is active (record last updated 2007-07-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.