Benjamin Keizer, PH.D.
NPI 1336415421 · Clinical Psychologist · Fort Sam Houston, TX
Enrolled with Medicare as Order and Referring Only - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Keizer, PH.D. is a Clinical Psychologist provider in Fort Sam Houston, TX (NPI 1336415421).
Provider details
- NPI number
- 1336415421
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 130005 (KY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
Mailing address
Registry dates
- Enumerated
- 2012-03-22
- Last updated
- 2020-05-20
- Certified
- 2020-05-20
Frequently asked questions
- What is Benjamin Keizer's NPI number?
- Benjamin Keizer's National Provider Identifier (NPI) is 1336415421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Keizer's specialty?
- Benjamin Keizer is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Benjamin Keizer located?
- Benjamin Keizer's practice location on file with NPPES is 3851 Roger Brooke Dr, Fort Sam Houston, TX 78234-4501.
- What is Benjamin Keizer's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Keizer is (210) 916-2460.
- Does Benjamin Keizer accept Medicare?
- Benjamin Keizer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Keizer's NPI active?
- Yes — Benjamin Keizer's NPI (1336415421) is active in the NPPES registry as of the last update on 2020-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.