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

Mr. Douglas L Folsom, MD

Individual provider Sleep Medicine (Internal Medicine) Physician · NPI 1831260470

Mr. Douglas L Folsom, MD is a Sleep Medicine (Internal Medicine) Physician in Antioch, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
Specialties on file
2
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

3934 Rocky Point Dr
Antioch, CA 94509-6902
Phone: (925) 978-9643
Fax: (925) 978-9029
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 00G209611 (CA)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 00G209611 (CA)

Record details

NPI number1831260470
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 13, 2006
Last updated in NPPESMay 7, 2018