Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alvaro Ernesto Castillo, M.D.

Surgical Oncology Physician in Lake Worth, FL · enumerated 2009.

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

National Provider Identifier

1891939385

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Registry record

Entity type Individual (Type 1)

Name Alvaro Ernesto Castillo

Credential M.D.

Sex Male

Practice address 142 John F Kennedy Dr, Lake Worth, FL, 33462

Phone (561) 439-1500

Fax (561) 439-9902

Enumeration date Apr 28, 2009

Last updated in NPPES Aug 17, 2023

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License ME126816 (FL) Secondary

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License ME126816 (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
017841000	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1891939385 active?

Yes, as of the latest NPPES snapshot, NPI 1891939385 is active (record last updated 2023-08-17).

How do I verify Alvaro Castillo's NPI record?

Cross-check NPI 1891939385 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Srinivas Kaza Surgery Physician · Atlantis, FL NPI 1750311551 Lori Anthony Physician Assistant · Lake Worth, FL NPI 1033319546 Sfm Surgery V LLC Surgery Physician · Lake Worth, FL NPI 1538437694 21st Century Oncology LLC Surgery Physician · Lake Worth, FL NPI 1891164208 21st Century Oncology LLC Surgery Physician · Lake Worth, FL NPI 1871962720 Independent Surgical Group LLC Surgical Oncology Physician · Atlantis, FL NPI 1194220962 Jade Cyrus Family Nurse Practitioner · Atlantis, FL NPI 1336754084

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-17.