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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Radiation Oncology Alliance

Radiation Oncology Physician in Lansing, MI · enumerated 2012 · authorized official David Spahlinger, Exec Medical Director Faculty Grp.

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

National Provider Identifier

1942574033

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Registry record

Entity type Organization (Type 2)
Legal business name Radiation Oncology Alliance
Parent organization Radiation Oncology Alliance
Practice address 401 West Greenlawn Avenue, Suite 100, Lansing, MI, 48910
Phone (517) 367-5070
Enumeration date Mar 7, 2012
Last updated in NPPES Mar 7, 2012

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name David Spahlinger
Title Exec Medical Director Faculty Grp
Phone (734) 936-3568

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

Who is the authorized official for Radiation Oncology Alliance?
NPPES lists David Spahlinger (Exec Medical Director Faculty Grp) as the authorized official for this organization.
What is the NPI number for Radiation Oncology Alliance?
The NPI for Radiation Oncology Alliance is 1942574033, 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 2012-03-07.