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LAUREN MACKENZIE
NPI 1285178038
Speech-Language Pathologist in Tarzana, CA

Active since December 13, 2016
19019 VENTURA BLVD, TARZANA, CA 91356(818) 697-4222 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 24, 2026, Dec 13, 2016 (2 updates tracked since 2016).

About Lauren Mackenzie NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LAUREN MACKENZIE (NPI 1285178038) is an individual speech-language pathologist provider in Tarzana, California, licensed in California (25977) and active in the NPI registry since December 2016.

NPPES Registry Identity

NPI1285178038
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameLAUREN MACKENZIE
Location Address19019 VENTURA BLVDTarzana, CA 91356-3253
Mailing Address19019 Ventura BlvdTarzana, CA 91356-3253
Phone(818) 697-4222
Sole ProprietorNo
Enumeration DateDecember 13, 2016
Last NPPES UpdateJuly 24, 20262 updates tracked since enumeration
NPPES CertifiedJuly 24, 2026
✔ NPI 1285178038 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in CA · 25977
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
19019 VENTURA BLVD, Tarzana, CA 91356
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lauren Mackenzie is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Lauren Mackenzie reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Expressable Speech-Language Pathology, P.C.
1,245 mi
Speech-Language Pathologist
3800 N LAMAR BLVD STE 200
Austin, TX 78756
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Expressable Speech-Language Pathology PC
  • 179 clinicians in this Medicare group
NPI 1649875857 (512) 377-6318

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.

ASHLEY ZARIAN
Speech-Language Pathologist
19019 VENTURA BLVD
TARZANA, CA 91356
Los Angeles County (818) 501-8352
EVELYN KUNG MA, BCBA
Behavior Analyst
19019 VENTURA BLVD
TARZANA, CA 91356
Los Angeles County (818) 345-2345
CRYSTAL RAMIREZ
Behavior Analyst
19019 VENTURA BLVD
TARZANA, CA 91356
Los Angeles County (818) 501-8352
JOANNA CHRISTINA JUAREZ
Speech-Language Pathologist
19019 VENTURA BLVD
TARZANA, CA 91356
Los Angeles County (818) 470-9593
NATHANIEL NACES QASP
Behavior Analyst
19019 VENTURA BLVD
TARZANA, CA 91356
Los Angeles County (818) 501-8352
BRITTANY JOACHIM
Occupational Therapist
19019 VENTURA BLVD
TARZANA, CA 91356
Los Angeles County (818) 501-8352
AMANDA AJDARI PT, DPT
Physical Therapist
19019 VENTURA BLVD
TARZANA, CA 91356
Los Angeles County (818) 501-8352
DANA KAEMPFE
Physical Therapist
19019 VENTURA BLVD
TARZANA, CA 91356
Los Angeles County (818) 501-8352

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 Lauren Mackenzie's NPI number?

The NPI number for Lauren Mackenzie is 1285178038. It was assigned to this individual provider in the NPPES registry on December 13, 2016.

Where is Lauren Mackenzie located?

Lauren Mackenzie practices at 19019 Ventura Blvd, Tarzana, CA 91356. The listed phone number is (818) 697-4222.

What is Lauren Mackenzie's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Lauren Mackenzie enrolled in Medicare?

Yes. Lauren Mackenzie is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lauren Mackenzie's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Mackenzie reassigns Medicare benefits to Expressable Speech-Language Pathology, P.C. (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 Lauren Mackenzie'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 Lauren Mackenzie was last updated on July 24, 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.