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

Dr. Johnston Co, MD

Individual provider Preventive Medicine/Occupational Environmental Medicine Physician · NPI 1114044096

Dr. Johnston Co, MD is a Preventive Medicine/Occupational Environmental Medicine Physician in Stockton, 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.

See every abbreviation used in this directory →

Practice location Address checks out

1801 E March Ln # D-480
Stockton, CA 95210-6629
Phone: (209) 954-3200
Show map & directions

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

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X · Licence G077293 (CA)

Record details

NPI number1114044096
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2007
Last updated in NPPESJuly 8, 2007
Mailing address1953 Caversham Way, Folsom, CA 95630-6252