Are you Dr. Lyon? This profile is yours to edit: update your address, phone, photo and services.

Edit this profile

Physician Profile

David A. Lyon, DO

Is this you? Edit this profile

At a glance

About Dr. Lyon

David A. Lyon, DO practices internal medicine in Anaheim, CA. The provider's National Provider Identifier (NPI) is 1619025434.

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

Specialty

Internal Medicine (Primary)

Credentials & Licensing

CA · Osteopathic Physician and Surgeon 20AOsteopathic Medical Board of California
No. 7356CurrentExpires Sep 2027Since 1998
CA licenceAs reported to the NPI registry
No. 20A7356As reported
NPINational Provider Identifier
1619025434Issued 2007

Snapshot · verify with the board ↗

Common questions

What kind of doctor is Dr. Lyon?

Dr. Lyon is an internist in Anaheim, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

What is Dr. Lyon's address?

Dr. Lyon is listed at 441 N Lakeview Ave, Anaheim, CA 92807. 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. Lyon?

The number on file is (888) 988-2800. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Lyon's NPI number?

Dr. Lyon's National Provider Identifier is 1619025434. 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. Lyon been practicing?

Dr. Lyon has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Dr. Lyon confirmed this information?

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

Guide.md

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