Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Mark C Johnsen, DDS

Individual provider Dentist · NPI 1245390988

Mr. Mark C Johnsen, DDS is a Dentist in Highland, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

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Practice location Address checks out

6982 Boulder Ave
Highland, CA 92346
Phone: (909) 862-2121
Fax: (909) 862-6648
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 40622 (CA)

Record details

NPI number1245390988
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedDecember 11, 2006
Last updated in NPPESJuly 8, 2007

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