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

Dr. Derrick Akira Hamaoka, MD

Individual provider Psychiatry Physician · NPI 1487711230

Dr. Derrick Akira Hamaoka, MD is a Psychiatry Physician in Ft. Sam Houston, Texas. Practices as a sole proprietor. Licensed in Virginia.

Licensed in
VA
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

3551 Roger Brooke Dr
Ft. Sam Houston, TX 78234-9907
Phone: (210) 539-9582
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 0101231389 (VA)

Record details

NPI number1487711230
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 2, 2007
Last updated in NPPESOctober 3, 2021
Certification dateOctober 3, 2021