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

Dr. Harold Block, DDS

Individual provider Dentist · NPI 1003907940

Dr. Harold Block, DDS is a Dentist in San Diego, California. Practices as a sole proprietor. Licensed in California.

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

5189 Clairemont Mesa Blvd
San Diego, CA 92117-1446
Phone: (858) 277-4764
Fax: (858) 505-0647
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 21093 (CA)

Record details

NPI number1003907940
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedSeptember 27, 2006
Last updated in NPPESJuly 8, 2007

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