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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KATIE MAULANA MARDAYAT M.S., CCC-SLP
NPI 1134770316
Speech-Language Pathologist in Calabasas, CA

Active since September 27, 2019
4111 LAS VIRGENES RD, CALABASAS, CA 91302(818) 880-4000 Get Directions Write a Review

NPPES record last updated: September 9, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 9, 2026, Sep 27, 2019 (2 updates tracked since 2019).

About Katie Maulana Mardayat M.s., Ccc-slp NPPES

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

KATIE MAULANA MARDAYAT M.S., CCC-SLP (NPI 1134770316) is an individual speech-language pathologist provider in Calabasas, California, licensed in California (14045) and active in the NPI registry since September 2019.

NPPES Registry Identity

NPI1134770316
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameKATIE MAULANA MARDAYATCredential: M.S., CCC-SLP
Location Address4111 LAS VIRGENES RDCalabasas, CA 91302-1929
Mailing Address4111 Las Virgenes RdCalabasas, CA 91302-1929 · (818) 880-4000
Phone(818) 880-4000
Sole ProprietorNo
Enumeration DateSeptember 27, 2019
Last NPPES UpdateSeptember 9, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2026
✔ NPI 1134770316 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 · 14045
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.
4111 LAS VIRGENES RD, Calabasas, CA 91302
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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.

SABA LILY ROOFIAN
Psychologist (School)
4111 LAS VIRGENES RD
CALABASAS, CA 91302
Los Angeles County (818) 880-4000
CARISSA DURAN
Psychologist (School)
4111 LAS VIRGENES RD
CALABASAS, CA 91302
Los Angeles County (818) 880-4000
LAS VIRGENES UNIFIED SCHOOL DISTRICT
Local Education Agency (LEA)
4111 LAS VIRGENES RD
CALABASAS, CA 91302
Los Angeles County (818) 880-4000
ARDA RAQUEL BABOGLIAN
Psychologist (School)
4111 LAS VIRGENES RD
CALABASAS, CA 91302
Los Angeles County (818) 224-4107
MATHEU B. SONNE
Health and Wellness Coach
4111 LAS VIRGENES RD
CALABASAS, CA 91302
Los Angeles County (818) 880-4000
NICOLE GOLDSTEIN
Counselor (School)
4111 LAS VIRGENES RD
CALABASAS, CA 91302
Los Angeles County (818) 880-4000
KEREN LEVIN
Health and Wellness Coach
4111 LAS VIRGENES RD
CALABASAS, CA 91302
Los Angeles County (818) 880-4000
CARLOS IGNACIO RUIZ
Behavior Technician
4111 LAS VIRGENES RD
CALABASAS, CA 91302
Los Angeles County (818) 880-4000

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 Katie Mardayat's NPI number?

The NPI number for Katie Mardayat is 1134770316. It was assigned to this individual provider in the NPPES registry on September 27, 2019.

Where is Katie Mardayat located?

Katie Mardayat practices at 4111 Las Virgenes Rd, Calabasas, CA 91302. The listed phone number is (818) 880-4000.

What is Katie Mardayat's specialty?

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

When was this NPI record last updated?

The NPPES record for Katie Mardayat was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.