Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Coastal Radiation Oncology Medical Group, Inc.

Radiation Oncology Physician in Thousand Oaks, CA · enumerated 2006 · authorized official Jonathan Stella, President.

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

National Provider Identifier

1811927999

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Registry record

Entity type Organization (Type 2)

Legal business name Coastal Radiation Oncology Medical Group, Inc.

Other name <Unavail>

Practice address 2230 Lynn Rd, Suite 103, Thousand Oaks, CA, 91360

Phone (805) 496-4111

Fax (805) 496-2861

Enumeration date Jul 4, 2006

Last updated in NPPES Jan 29, 2008

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Jonathan Stella

Title President

Phone (805) 541-1932

Other identifiers

Identifier	Type	State	Issuer
ZZZ83011Z	Medicaid	CA	-

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

Who is the authorized official for Coastal Radiation Oncology Medical Group, Inc.?

NPPES lists Jonathan Stella (President) as the authorized official for this organization.

What is the NPI number for Coastal Radiation Oncology Medical Group, Inc.?

The NPI for Coastal Radiation Oncology Medical Group, Inc. is 1811927999, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-29.