Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Orlando J Castillo, M.D.

Nephrology Physician in Tampa, FL · enumerated 2006.

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

National Provider Identifier

1689639650

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Registry record

Entity type Individual (Type 1)

Name Orlando J Castillo

Credential M.D.

Sex Male

Practice address 2810 W Saint Isabel St, Suite # 101, Tampa, FL, 33607

Phone (813) 873-7479

Fax (813) 877-6324

Enumeration date Apr 20, 2006

Last updated in NPPES Jul 9, 2008

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License ME0037808 (FL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Orlando Castillo?

Orlando Castillo is registered in NPPES with the primary taxonomy of Nephrology 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 2008-07-09.