DR. DIANA PATRICIA KETTERMAN PH.D.
NPI 1811487937
Psychologist in Alta Loma, CA
About Dr. Diana Patricia Ketterman Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DIANA PATRICIA KETTERMAN PH.D. (NPI 1811487937) is an individual psychologist in Alta Loma, California, licensed in California (33769) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Diana Patricia Ketterman Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Diana Ketterman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Santa Clara, CA 95054
- Reassigned Medicare billing, California enrollment
- 1,607 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Diana Ketterman's NPI number?
The NPI number for Diana Ketterman is 1811487937. It was assigned to this individual provider in the NPPES registry on May 14, 2018. The provider is also known as Dr. Diana P. Ketterman-Najera Ph.D..
Where is Diana Ketterman located?
Diana Ketterman practices at 5033 Carriage Rd, Alta Loma, CA 91737. The listed phone number is (909) 732-6224.
What is Diana Ketterman's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Diana Ketterman enrolled in Medicare?
Yes. Diana Ketterman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Diana Ketterman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Ketterman reassigns Medicare benefits to Sud Specialty Group - Ca (Santa Clara, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diana Ketterman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Diana Ketterman was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.