Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas D Sunnenberg, MD

Hematology & Oncology Physician in Pensacola, FL · enumerated 2005 · practices at Gulf Region Radiation Oncology Centers Inc.

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

National Provider Identifier

1225023641

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Registry record

Entity type Individual (Type 1)

Name Thomas D Sunnenberg

Credential MD

Sex Male

Practice address 1545 Airport Blvd, Suite 2000, Pensacola, FL, 32504

Phone (850) 416-6933

Fax (850) 416-6934

Enumeration date Sep 12, 2005

Last updated in NPPES Feb 28, 2012

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 0035969 (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
066486300	Medicaid	FL	-

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 Thomas Sunnenberg?

Thomas Sunnenberg is registered in NPPES with the primary taxonomy of Hematology & 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 2012-02-28.