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

James Castles, MD

Individual provider Rheumatology Physician · NPI 1477623403

James Castles, MD is a Rheumatology Physician in Davis, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

451 E Health Sciences Dr Ste 6510
Davis, CA 95616
Phone: (530) 752-2884
Fax: (530) 754-6047
Show map & directions

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

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence GFE25647 (CA)

Record details

NPI number1477623403
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 8, 2006
Last updated in NPPESJuly 8, 2007
Mailing address451 E. Health Sciences Drive, Suite 6510, Davis, CA 95616

Other providers in Davis