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

Dr. James D Lock, MD, PHD

Individual provider Child & Adolescent Psychiatry Physician · NPI 1821133836

Dr. James D Lock, MD, PHD is a Child & Adolescent Psychiatry Physician in Palo Alto, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

401 Quarry Rd
Palo Alto, CA 94304-1419
Phone: (650) 723-5473
Fax: (650) 723-5531
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence G064940 (CA)

Record details

NPI number1821133836
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedFebruary 20, 2007
Last updated in NPPESJuly 8, 2007

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