Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Siouxland Regional Cancer Center

Hematology & Oncology Physician in Sioux City, IA · enumerated 2005 · authorized official Krista Mccullough, Executive Director.

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

National Provider Identifier

1114904604

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Registry record

Entity type Organization (Type 2)

Legal business name Siouxland Regional Cancer Center

Other name <Unavail>

Practice address 230 Nebraska St, Sioux City, IA, 51101

Phone (712) 252-0088

Fax (712) 252-9404

Enumeration date Dec 27, 2005

Last updated in NPPES Jun 24, 2019

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians Secondary

332B00000X Durable Medical Equipment & Medical Supplies Suppliers Secondary

Authorized official

Name Krista Mccullough

Title Executive Director

Phone (712) 252-9301

Other identifiers

Identifier	Type	State	Issuer
0460568	Medicaid	IA	-
10025264400	Medicaid	NE	-
50928	Other	IA	WELLMARK

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 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.

What type of organization is Siouxland Regional Cancer Center?

Siouxland Regional Cancer Center is registered in NPPES as a Hematology & Oncology Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Randy Sorum Radiation Oncology Physician · Sioux City, IA NPI 1720059181 Radha Rao Hematology & Oncology Physician · Sioux City, IA NPI 1699746016 Donald Wender Hematology & Oncology Physician · Sioux City, IA NPI 1861463275 Stephen Kahanic Hematology & Oncology Physician · Sioux City, IA NPI 1962474155 John Michalak Hematology & Oncology Physician · Sioux City, IA NPI 1497727663 Shari Black Adult Health Nurse Practitioner · Sioux City, IA NPI 1831152925 Siouxland Hematology Oncology Associates LLP Hematology & Oncology Physician · Sioux City, IA NPI 1811914575 Yat Lau Radiation Oncology Physician · Sioux City, IA NPI 1235234279

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-24.