Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Paul B Ossi, M.D.

Radiation Oncology Physician in Jacksonville, FL · enumerated 2005 · practices at Ackerman Cancer Center, PA.

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

National Provider Identifier

1972508299

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Registry record

Entity type Individual (Type 1)

Name Paul B Ossi

Credential M.D.

Sex Male

Practice address Jacksonville, FL, 32223

Phone (904) 387-9525

Fax (904) 389-8478

Enumeration date Jun 14, 2005

Last updated in NPPES Sep 27, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License ME69504 (FL) 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
28754	Other	FL	WELLCARE
258471	Other	FL	AVMED
655587300	Other	FL	CIGNA
256888800	Medicaid	FL	-
3600145	Other	FL	UNITED HEALTHCARE
4099572	Other	FL	G H I
920005146	Other	FL	RAILROAD MEDICARE
00965566A	Medicaid	GA	-
28753	Other	FL	HEALTHEASE

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Paul Ossi?

Paul Ossi is registered in NPPES with the primary taxonomy of Radiation Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-27.