Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Brett Arnold, O.D.
Optometrist in Ann Arbor, MI · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821404955
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Registry record
Entity type Individual (Type 1)
Name Dr. Brett Arnold
Credential O.D.
Sex Male
Practice address 1565 Eastover Place, Ann Arbor, MI, 48104
Phone (734) 759-2909
Fax (734) 929-4142
Enumeration date Jul 9, 2014
Last updated in NPPES Sep 16, 2015
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4901004851 | Other | MI | MICHIGAN OPTOMETRY LICENSE |
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
Is NPI 1821404955 active?
Yes, as of the latest NPPES snapshot, NPI 1821404955 is active (record last updated 2015-09-16).
How do I verify Brett Arnold's NPI record?
Cross-check NPI 1821404955 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-16.