MICHAEL THOMAS WALKER PH.D.
NPI 1427134915
Psychologist - Clinical in Los Angeles, CA
About Michael Thomas Walker Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL THOMAS WALKER PH.D. (NPI 1427134915) is an individual clinical provider in Los Angeles, California, licensed in California (PSY 13954) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Michael Thomas Walker 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 Michael Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90018
- Reassigned Medicare billing, California enrollment
- 533 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90008 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
LOS ANGELES, CA 90008
LOS ANGELES, CA 90008
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 Michael Walker's NPI number?
The NPI number for Michael Walker is 1427134915. It was assigned to this individual provider in the NPPES registry on October 27, 2006.
Where is Michael Walker located?
Michael Walker practices at 3751 Stocker St, Los Angeles, CA 90008. The listed phone number is (323) 298-3687.
What is Michael Walker's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Michael Walker enrolled in Medicare?
Yes. Michael Walker 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 Michael Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Walker reassigns Medicare benefits to Los Angeles County Department Of Mental Health (Los Angeles, 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 Michael Walker'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 Michael Walker was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Michael Thomas Walker, PH.D. · NPI 1427134915
Clinical provider in Los Angeles, California. Individual provider, active in the CMS NPPES registry since October 27, 2006.
## Identity
- **NPI:** 1427134915 (Entity type: Individual)
- **Enumerated:** October 27, 2006
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** PSY 13954 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3751 STOCKER ST, Los Angeles, CA 90008-5101
- **Phone:** (323) 298-3687
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Los Angeles County Department Of Mental Health (NPI 1649203068, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1991
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare ID-Type Unspecified WCP13954A (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1427134915) · Data from the CMS NPPES public registry.