Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Valley Cancer Associates PA

Q: What type of organization is Valley Cancer Associates PA?

Valley Cancer Associates PA is registered in NPPES as a Radiation Oncology Physician (its primary provider taxonomy).

Radiation Oncology Physician in Harlingen, TX · enumerated 2007 · authorized official Mark Harrison, President.

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

National Provider Identifier

1427233238

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Registry record

Entity type Organization (Type 2)

Legal business name Valley Cancer Associates PA

Practice address 1719 Treasure Hills Blvd, Harlingen, TX, 78550

Phone (956) 364-2131

Fax (956) 364-2141

Enumeration date Dec 31, 2007

Last updated in NPPES Oct 20, 2020

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License M4512 (TX) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians Primary

208800000X Urology Physician Allopathic & Osteopathic Physicians Secondary

332B00000X Durable Medical Equipment & Medical Supplies Suppliers Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Mark Harrison

Title President

Phone (956) 430-9400

Other identifiers

Identifier	Type	State	Issuer
DP0380	Other	TX	MEDICARE RAILROAD
192809501	Medicaid	TX	-

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 Valley Cancer Associates PA?

Valley Cancer Associates PA is registered in NPPES as a Radiation Oncology Physician (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-20.