Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Coastal Radiation Oncology Medical Group, Inc.

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

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

National Provider Identifier

1972535359

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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 274 Heather Ct, Templeton, CA, 93465

Phone (805) 434-1859

Fax (805) 434-2383

Enumeration date Jul 7, 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
GR0047640	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.

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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 2008-01-29. Verify at npiregistry.cms.hhs.gov.

Where is Coastal Radiation Oncology Medical Group, Inc. located?

The practice location on file with NPPES is in Templeton, CA.

Providers at this address

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James Longo Radiation Oncology Physician · Templeton, CA NPI 1083606602 Noreen Johnston Registered Nurse · Templeton, CA NPI 1629174693

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