MS. STEPHANIE MACKEY M.S.
NPI 1245364967
Audiologist in Westlake Village, CA
About Ms. Stephanie Mackey M.s. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. STEPHANIE MACKEY M.S. (NPI 1245364967) is an individual audiologist in Westlake Village, California, licensed in California (AU2471) and active in the NPI registry since March 2007.
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)
Ms. Stephanie Mackey M.s. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Stephanie Mackey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bakersfield, CA 93309
- Reassigned Medicare billing, California enrollment
- 23 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.
WESTLAKE VILLAGE, CA 91362
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 Stephanie Mackey's NPI number?
The NPI number for Stephanie Mackey is 1245364967. It was assigned to this individual provider in the NPPES registry on March 15, 2007.
Where is Stephanie Mackey located?
Stephanie Mackey practices at 3825 E Thousand Oaks Blvd Ste O, Westlake Village, CA 91362. The listed phone number is (805) 496-1674.
What is Stephanie Mackey's specialty?
The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.
Is Stephanie Mackey enrolled in Medicare?
Yes. Stephanie Mackey is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Stephanie Mackey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Mackey reassigns Medicare benefits to Hearx West, LLC (Bakersfield, 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 Stephanie Mackey'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 Stephanie Mackey was last updated on September 9, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Ms. Stephanie Mackey, M.S. · NPI 1245364967
Audiologist provider in Westlake Village, California. Individual provider, active in the CMS NPPES registry since March 15, 2007.
## Identity
- **NPI:** 1245364967 (Entity type: Individual)
- **Enumerated:** March 15, 2007
- **Primary specialty:** Audiologist · taxonomy 231H00000X
- **State license:** AU2471 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3825 E THOUSAND OAKS BLVD STE O, Westlake Village, CA 91362-6637
- **Phone:** (805) 496-1674
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Hearx West, LLC (NPI 1356398598, Bakersfield, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 9, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1245364967) · Data from the CMS NPPES public registry.