DR. MARY WILLIAMS AU.D.
NPI 1356014708
Audiologist in Houston, TX

Active since July 30, 2021Accepts Medicare Assignment
13300 HARGRAVE RD STE 205, HOUSTON, TX 77070(281) 737-7261 Get Directions Write a Review

NPPES record last updated: July 30, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mary Williams Au.d. NPPES

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

DR. MARY WILLIAMS AU.D. (NPI 1356014708) is an individual audiologist in Houston, Texas, licensed in Texas (81257) and active in the NPI registry since July 2021. She is a graduate of Other (2021).

NPPES Registry Identity

NPI1356014708
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameDR. MARY WILLIAMSCredential: AU.D.
Location Address13300 HARGRAVE RD STE 205Houston, TX 77070-4373
Mailing Address13300 Hargrave Rd Ste 205Houston, TX 77070-4373
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateJuly 30, 2021
NPPES CertifiedJuly 30, 2021
✔ NPI 1356014708 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
License✔ Licensed in TX · 81257
Definition
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.
13300 HARGRAVE RD STE 205, Houston, TX 77070

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary Williams Au.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618373770
PECOS Enrollment IDI20210915001403

Medicare Billing Reassignments

2

Medicare enrollment records show Mary Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ophthalmology
6550 FANNIN ST, SUITE 447
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 2,407 clinicians in this Medicare group
Otolaryngology
7550 GREENBRIAR DR STE 600
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 1,579 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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Comprehensive hearing and speech recognition test 92557
A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.
295 services282 patients
Test for eardrum and muscle function 92550
This test assesses the health of your eardrum and muscles linked to hearing. A small device is placed in your ear that creates pressure changes and sounds. Your ear's responses are recorded to determine if they are functioning properly.
293 services280 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77070 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$58.24 typical visit price
range $58.24 – $176.98
Typical copayment $14.56 (range $14.56 – $44.24)
Most-billed visit code 99202
Established Patient
$72.62 typical visit price
range $18.60 – $143.93
Typical copayment $18.15 (range $4.65 – $35.98)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Surgery
13300 HARGRAVE RD STE 205
HOUSTON, TX 77070
Otolaryngology
13300 HARGRAVE RD STE 205
HOUSTON, TX 77070
Internal Medicine (Endocrinology, Diabetes & Metabolism)
13300 HARGRAVE RD STE 205
HOUSTON, TX 77070

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 Williams's NPI number?

The NPI number for Mary Williams is 1356014708. It was assigned to this individual provider in the NPPES registry on July 30, 2021.

Where is Mary Williams located?

Mary Williams practices at 13300 Hargrave Rd Ste 205, Houston, TX 77070. The listed phone number is (281) 737-7261.

What is Mary Williams's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

Is Mary Williams enrolled in Medicare?

Yes. Mary Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Mary Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Williams reassigns Medicare benefits to 2 organizations: Tmh Physician Associates PLLC (Houston, TX) and Houston Methodist Specialty Physicians (Houston, TX). Each 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 Mary Williams'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 Mary Williams was last updated on July 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.