Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hematology & Oncology Associates of Alabama LLC

Hematology & Oncology Physician in Fultondale, AL · enumerated 2009 · authorized official Elquis Castillo, President.

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

National Provider Identifier

1033443775

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Hematology & Oncology Associates of Alabama LLC

Practice address 339 Walker Chapel Plz Ste 109, Fultondale, AL, 35068

Phone (205) 502-4700

Fax (877) 353-3589

Enumeration date Sep 29, 2009

Last updated in NPPES May 1, 2026

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Elquis Castillo

Title President

Phone (205) 271-8541

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 type of organization is Hematology & Oncology Associates of Alabama LLC?

Hematology & Oncology Associates of Alabama LLC is registered in NPPES as a Hematology & Oncology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-01.