NPI Portal NPI Lookup & Verification

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

West Michigan Radiation Oncology

Radiation Oncology Physician in Wyoming, MI · enumerated 2008 · authorized official David Spahlinger, MD.

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

National Provider Identifier

1104074723

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name West Michigan Radiation Oncology
Parent organization West Michigan Radiation Oncology
Practice address 5950 Metro Way Sw, Wyoming, MI, 49519
Phone (616) 252-8160
Enumeration date Sep 8, 2008
Last updated in NPPES Sep 8, 2008

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name David Spahlinger
Title MD
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.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for West Michigan Radiation Oncology?
NPPES lists David Spahlinger (MD) as the authorized official for this organization.
What is the NPI number for West Michigan Radiation Oncology?
The NPI for West Michigan Radiation Oncology is 1104074723, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-08.