IndividualActive
Derrick Hamaoka, M.D.
NPI 1487711230 · Psychiatry Physician · Ft. Sam Houston, TX
Derrick Hamaoka, M.D. is a Psychiatry Physician provider in Ft. Sam Houston, TX (NPI 1487711230).
Provider details
- NPI number
- 1487711230
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101231389 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
3551 Roger Brooke Dr
Ft. Sam Houston, TX 78234-9907
Phone: (210) 539-9582
Street-level locationGet directions
Mailing address
3551 Roger Brooke Dr
Ft. Sam Houston, TX 78234-9907
Registry dates
- Enumerated
- 2007-01-02
- Last updated
- 2021-10-03
- Certified
- 2021-10-03
Frequently asked questions
- What is Derrick Hamaoka's NPI number?
- Derrick Hamaoka's National Provider Identifier (NPI) is 1487711230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derrick Hamaoka's specialty?
- Derrick Hamaoka is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Derrick Hamaoka located?
- Derrick Hamaoka's practice location on file with NPPES is 3551 Roger Brooke Dr, Ft. Sam Houston, TX 78234-9907.
- What is Derrick Hamaoka's phone number?
- The practice phone number listed in the NPPES registry for Derrick Hamaoka is (210) 539-9582.
- Is Derrick Hamaoka's NPI active?
- Yes — Derrick Hamaoka's NPI (1487711230) is active in the NPPES registry as of the last update on 2021-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.