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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Diane Joan Brzezinski, D.O.

Internal Medicine Physician in Naples, FL · enumerated 2007 · practices at Diane Brzezinski Do PA.

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

National Provider Identifier

1447301544

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Registry record

Entity type Individual (Type 1)
Name Dr. Diane Joan Brzezinski
Credential D.O.
Sex Female
Practice address 1250 Pine Ridge Rd Ste 101a, Naples, FL, 34108
Phone (239) 261-9990
Fax (239) 261-9993
Enumeration date Jan 15, 2007
Last updated in NPPES Apr 23, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OS7847 (FL) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
1730378175 Other FL NPI

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 Diane Brzezinski's NPI record?
Cross-check NPI 1447301544 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1447301544 active?
Yes, as of the latest NPPES snapshot, NPI 1447301544 is active (record last updated 2020-04-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-23.