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

Mr. James E. O'Brien Jr., MD

Individual provider Forensic Psychiatry Physician · NPI 1275785974

Mr. James E. O'Brien Jr., MD is a Forensic Psychiatry Physician in Mira Loma, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008
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

10427 San Sevaine Way Ste H
Mira Loma, CA 91752-1151
Phone: (951) 360-0997
Fax: (951) 361-1394
Show map & directions

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

Specialties & licences

Forensic Psychiatry Physician (primary) Taxonomy 2084F0202X · Licence G50733 (CA)
Psychiatry Physician Taxonomy 2084P0800X · Licence G50733 (CA)

Record details

NPI number1275785974
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 14, 2008
Last updated in NPPESOctober 14, 2008