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Provider Profile

Mark C. Johnsen, DDS

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At a glance

About Dr. Johnsen

Mark C. Johnsen, DDS is a dentist based in Highland, CA. The provider's National Provider Identifier (NPI) is 1245390988.

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

Specialty

Dentist (Primary)

Credentials & Licensing

CA · Dental LicenseDental Board of California
No. 40622CurrentExpires Oct 2027Since 1992
NPINational Provider Identifier
1245390988Issued 2006

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Common questions

What does Dr. Johnsen specialize in?

Dr. Johnsen is a dentist in Highland, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where is Dr. Johnsen located?

Dr. Johnsen is listed at 6982 Boulder Avenue, Highland, CA 92346. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Johnsen's phone number?

The number on file is (909) 862-2121. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Johnsen's NPI number?

Dr. Johnsen's National Provider Identifier is 1245390988. 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. Johnsen been practicing?

Dr. Johnsen has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Dr. Johnsen confirmed this information?

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

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