DR. WILLIAM KAISER PH.D.
NPI 1275650095
Psychologist in Encino, CA
About Dr. William Kaiser Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM KAISER PH.D. (NPI 1275650095) is an individual psychologist in Encino, California, licensed in California (PSY13221) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1990).
NPPES Registry Identity
Specialties & Licenses
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. William Kaiser 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 William Kaiser reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Encino, CA 91316
- Reassigned Medicare billing, California enrollment
- 32 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ENCINO, CA 91316
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 William Kaiser's NPI number?
The NPI number for William Kaiser is 1275650095. It was assigned to this individual provider in the NPPES registry on March 25, 2007.
Where is William Kaiser located?
William Kaiser practices at 17777 Ventura Blvd Ste 105, Encino, CA 91316. The listed phone number is (213) 908-1234.
What is William Kaiser's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is William Kaiser enrolled in Medicare?
Yes. William Kaiser 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 William Kaiser's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Kaiser reassigns Medicare benefits to Change Within Reach Inc (Encino, 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 William Kaiser'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 William Kaiser was last updated on February 7, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.