MACKENZIE KERSTEN
NPI 1427979012
Speech-Language Pathologist in Los Angeles, CA
About Mackenzie Kersten NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MACKENZIE KERSTEN (NPI 1427979012) is an individual speech-language pathologist provider in Los Angeles, California and active in the NPI registry since July 2026. She is a graduate of Other (2023).
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 (PECOS)
Mackenzie Kersten is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mackenzie Kersten reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Austin, TX 78752
- Reassigned Medicare billing, Iowa enrollment
- 4 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.
LOS ANGELES, CA 90071
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 Mackenzie Kersten's NPI number?
The NPI number for Mackenzie Kersten is 1427979012. It was assigned to this individual provider in the NPPES registry on July 21, 2026.
Where is Mackenzie Kersten located?
Mackenzie Kersten practices at 633 W 5th St # 2876B, Los Angeles, CA 90071. The listed phone number is (512) 377-6318.
What is Mackenzie Kersten's specialty?
The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.
Is Mackenzie Kersten enrolled in Medicare?
Yes. Mackenzie Kersten is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mackenzie Kersten's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mackenzie Kersten reassigns Medicare benefits to Expressable Therapy PC (Austin, TX). 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 Mackenzie Kersten'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 Mackenzie Kersten was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mackenzie Kersten · NPI 1427979012
Speech-Language Pathologist provider in Los Angeles, California. Individual provider, active in the CMS NPPES registry since July 21, 2026.
## Identity
- **NPI:** 1427979012 (Entity type: Individual)
- **Enumerated:** July 21, 2026
- **Primary specialty:** Speech-Language Pathologist · taxonomy 235Z00000X
- **Sole proprietor:** No
## Practice location
- **Address:** 633 W 5TH ST # 2876B, Los Angeles, CA 90071-2005
- **Phone:** (512) 377-6318
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Expressable Therapy PC (NPI 1134875370, Austin, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** July 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1427979012) · Data from the CMS NPPES public registry.