Diana Ketterman, PH.D.
NPI 1811487937 · Psychologist · Alta Loma, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Ketterman, PH.D. is a Psychologist provider in Alta Loma, CA (NPI 1811487937).
Provider details
- NPI number
- 1811487937
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 33769 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
8 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
- 2018-05-14
- Last updated
- 2025-09-23
- Certified
- 2025-09-23
Frequently asked questions
- What is Diana Ketterman's NPI number?
- Diana Ketterman's National Provider Identifier (NPI) is 1811487937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Ketterman's specialty?
- Diana Ketterman is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Diana Ketterman located?
- Diana Ketterman's practice location on file with NPPES is 5033 Carriage Rd, Alta Loma, CA 91737-1685.
- What is Diana Ketterman's phone number?
- The practice phone number listed in the NPPES registry for Diana Ketterman is (909) 732-6224.
- Does Diana Ketterman accept Medicare?
- Diana Ketterman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Ketterman's NPI active?
- Yes — Diana Ketterman's NPI (1811487937) is active in the NPPES registry as of the last update on 2025-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.