Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Regional Cancer Treatment Center Ltd

Radiation Oncology Clinic/Center in San Angelo, TX · enumerated 2005 · authorized official Misty Sonnenberg, Manager.

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

National Provider Identifier

1801889431

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Registry record

Entity type Organization (Type 2)

Legal business name Regional Cancer Treatment Center Ltd

Practice address 102 N Magdalen St, Suite 120, San Angelo, TX, 76903

Phone (325) 653-2010

Fax (325) 658-8583

Enumeration date Aug 30, 2005

Last updated in NPPES Jan 9, 2013

Taxonomy & classification

261QX0203X Radiation Oncology Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Misty Sonnenberg

Title Manager

Phone (325) 653-2010

Other identifiers

Identifier	Type	State	Issuer
109435102	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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-01-09. Verify at npiregistry.cms.hhs.gov.

Where is Regional Cancer Treatment Center Ltd located?

The practice location on file with NPPES is in San Angelo, TX.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-09.