Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alison Yiting Ou, OD
Optometrist in Baltimore, MD · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1144054297
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Registry record
Entity type Individual (Type 1)
Name Alison Yiting Ou
Credential OD
Sex Female
Practice address 4940 Eastern Ave, Baltimore, MD, 21224
Phone (410) 550-5568
Enumeration date Aug 30, 2024
Last updated in NPPES Jul 9, 2026
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 Alison Ou practice?
The practice location on file with NPPES is in Baltimore, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alison Ou?
The National Provider Identifier (NPI) for Alison Ou is 1144054297, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-09.