NPI Portal NPI Lookup & Verification

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Dr. Steven Siegel, MD

Hematology & Oncology Physician in Middleburg, FL · enumerated 2005 · practices at Cancer Specialists, LLC.

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

National Provider Identifier

1033106752

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Registry record

Entity type Individual (Type 1)
Name Dr. Steven Siegel
Credential MD
Sex Male
Practice address 1658 St Vincents Way Ste 230, Middleburg, FL, 32068
Phone (904) 214-8050
Enumeration date Sep 29, 2005
Last updated in NPPES Jun 8, 2026

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License ME 53723 (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
000324992E Medicaid GA -
062186200 Medicaid FL -
4288449 Other FL AETNA
07396 Other FL BCBS
204499 Other FL AVMED

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Steven Siegel?
Steven Siegel 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.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-08.