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

Robert J Lock, MD

Individual provider Cardiovascular Disease Physician · NPI 1821079393

Robert J Lock, MD is a Cardiovascular Disease Physician in Eureka, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2535 Harrison Ave
Eureka, CA 95501-3220
Phone: (707) 268-8718
Fax: (707) 268-8008
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence G51176 (CA)

Record details

NPI number1821079393
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 10, 2005
Last updated in NPPESJuly 13, 2026
Mailing address2535 Harrison Ave, Eureka, CA 95501-3220

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