Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ronald F Wozniak, MD

Internal Medicine Physician in Westfield, NJ · enumerated 2006 · practices at Ronald F Wozniak Mdpa.

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

National Provider Identifier

1598868184

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Registry record

Entity type Individual (Type 1)

Name Dr. Ronald F Wozniak

Credential MD

Sex Male

Practice address 629 E Broad St, Westfield, NJ, 07090

Phone (908) 233-5264

Fax (908) 233-1223

Enumeration date Sep 7, 2006

Last updated in NPPES Oct 22, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 25MA03204700 (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
1324704	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.

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Frequently asked questions

How do I verify Ronald Wozniak's NPI record?

Cross-check NPI 1598868184 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598868184 active?

Yes, as of the latest NPPES snapshot, NPI 1598868184 is active (record last updated 2013-10-22).

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Ronald F Wozniak Mdpa Internal Medicine Physician · Westfield, NJ NPI 1750685772

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-22.