Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hematology and Oncology Associates of Alabama, LLC

Hematology & Oncology Physician in Anniston, AL · enumerated 2007 · authorized official Elquis Castillo, President.

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

National Provider Identifier

1528251642

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Registry record

Entity type Organization (Type 2)

Legal business name Hematology and Oncology Associates of Alabama, LLC

Practice address 901 Leighton Ave, Suite 402, Anniston, AL, 36207

Phone (256) 237-2526

Fax (256) 237-4968

Enumeration date Aug 22, 2007

Last updated in NPPES Jan 31, 2008

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Elquis Castillo

Title President

Phone (205) 502-4712

Other identifiers

Identifier	Type	State	Issuer
CK5459	Other	AL	RAILROAD MEDICARE

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 is the NPI number for Hematology and Oncology Associates of Alabama, LLC?

The NPI for Hematology and Oncology Associates of Alabama, LLC is 1528251642, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Hematology and Oncology Associates of Alabama, LLC?

NPPES lists Elquis Castillo (President) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-31.