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

Dr. William Bruce O'Bryant, MD

Individual provider Internal Medicine Physician · NPI 1013041003

Dr. William Bruce O'Bryant, MD is an Internal Medicine Physician in Cypress, California. Practices as a sole proprietor. Licensed in California and Colorado.

Licensed in
CA, CO
In the registry since
2007
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

5757 Plaza Dr Mail Stop CA124-0142
Cypress, CA 90630-5000
Phone: (714) 226-6884
Fax: (949) 588-1177
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G42434 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 41348 (CO)

Record details

NPI number1013041003
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 14, 2007
Last updated in NPPESMarch 24, 2016

Other providers in Cypress