Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Aaron Walter Koons, OD
Optometrist in Hagerstown, MD · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831838903
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Registry record
Entity type Individual (Type 1)
Name Dr. Aaron Walter Koons
Credential OD
Sex Male
Practice address 17233 Cole Rd, Hagerstown, MD, 21740
Phone (240) 329-4699
Enumeration date May 27, 2022
Last updated in NPPES May 27, 2022
Taxonomy & licenses
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
Where does Aaron Koons practice?
The practice location on file with NPPES is in Hagerstown, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Aaron Koons?
The National Provider Identifier (NPI) for Aaron Koons is 1831838903, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-27.