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Provider Profile

Katherine DIEM ANH Loi, OD

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At a glance

About Dr. Loi

Katherine DIEM ANH Loi, OD is an optometrist based in Bel Air, MD. The provider's National Provider Identifier (NPI) is 1689558272.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Optometrist (Primary)

Credentials & Licensing

MD licenceAs reported to the NPI registry
No. 3105As reported
NY licenceAs reported to the NPI registry
No. ORT011227As reported
NPINational Provider Identifier
1689558272Issued 2025

As reported to the NPI registry ↗

Common questions

What kind of doctor is Dr. Loi?

Dr. Loi is an optometrist in Bel Air, MD. That is the designation recorded for this NPI in the federal registry.

NPI registry

What is Dr. Loi's address?

Dr. Loi is listed at 2316 Arthurs Woods Dr, Bel Air, MD 21015. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Dr. Loi?

The number on file is (410) 569-8258. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Loi's NPI number?

Dr. Loi's National Provider Identifier is 1689558272. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

How long has Dr. Loi been practicing?

Dr. Loi has 1+ years experience. Registered with an NPI since 2025. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Dr. Loi confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Loi. If this is you, claiming it is free.

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Guide.md listings do not constitute medical advice or an endorsement.

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