Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 30 days.

MARY KATHERINE HEYER
NPI 1255258463
Speech-Language Pathologist in Los Angeles, CA

Active since June 30, 2026
633 W 5TH ST OFC 2876B, LOS ANGELES, CA 90071(512) 377-6318 Get Directions Write a Review

NPPES record added: June 30, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mary Katherine Heyer NPPES

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

MARY KATHERINE HEYER (NPI 1255258463) is an individual speech-language pathologist provider in Los Angeles, California, licensed in Pennsylvania (SL016496) and active in the NPI registry since June 2026.

NPPES Registry Identity

NPI1255258463
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMARY KATHERINE HEYER
Location Address633 W 5TH ST OFC 2876BLos Angeles, CA 90071-2005
Mailing Address633 W 5th St Ofc 2876bLos Angeles, CA 90071-2005 · (512) 377-6318
Sole ProprietorYes
Enumeration DateJune 30, 2026
NPPES CertifiedJune 30, 2026
NPI 1255258463 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 PA · SL016496
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.

633 W 5TH ST OFC 2876B, Los Angeles, CA 90071

Other Names 1

Other Name (5)Mary Katherine Bulger

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.

Speech-Language Pathologist
633 W 5TH ST OFC 2876B
LOS ANGELES, CA 90071
Speech-Language Pathologist
633 W 5TH ST OFC 2876B
LOS ANGELES, CA 90071
Speech-Language Pathologist
633 W 5TH ST OFC 2876B
LOS ANGELES, CA 90071
Speech-Language Pathologist
633 W 5TH ST OFC 2876B
LOS ANGELES, CA 90071
Speech-Language Pathologist
633 W 5TH ST OFC 2876B
LOS ANGELES, CA 90071
Speech-Language Pathologist
633 W 5TH ST OFC 2876B
LOS ANGELES, CA 90071
Speech-Language Pathologist
633 W 5TH ST OFC 2876B
LOS ANGELES, CA 90071
Speech-Language Pathologist
633 W 5TH ST OFC 2876B
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 Mary Heyer's NPI number?

The NPI number for Mary Heyer is 1255258463. It was assigned to this individual provider in the NPPES registry on June 30, 2026. The provider is also known as Mary Katherine Bulger.

Where is Mary Heyer located?

Mary Heyer practices at 633 W 5th St Ofc 2876B, Los Angeles, CA 90071. The listed phone number is (512) 377-6318.

What is Mary Heyer'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 Mary Heyer was last updated on June 30, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.