Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Donald William Rademacher, O.D.
Optometrist in Holt, MI · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124370366
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Registry record
Entity type Individual (Type 1)
Name Dr. Donald William Rademacher
Credential O.D.
Sex Male
Practice address 2040 Aurelius Rd, Suite 20, Holt, MI, 48842
Phone (517) 699-3937
Fax (517) 699-4199
Enumeration date Oct 12, 2012
Last updated in NPPES Oct 12, 2012
Taxonomy & licenses
152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 4901004707 (MI) Secondary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
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.
Frequently asked questions
What is the NPI number for Donald Rademacher?
The National Provider Identifier (NPI) for Donald Rademacher is 1124370366, a Type 1 (individual) record in the CMS NPPES registry.
Where does Donald Rademacher practice?
The practice location on file with NPPES is in Holt, MI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Jill Stephenson-Mccole Family Medicine Physician · Holt, MI NPI 1831290402 Holt Eye Care, Pllc Optometrist · Holt, MI NPI 1538221817 Dorothy Brown Family Medicine Physician · Holt, MI NPI 1760827851 Advanced Medical Solutions Inc Durable Medical Equipment & Medical Supplies · Holt, MI NPI 1093133498 Elise Maynard Physical Therapist · Holt, MI NPI 1477219160 Alaina Fox Optometrist · Holt, MI NPI 1346185014
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-12.