DR. MARY ELIZABETH SMITH AUD
NPI 1851886386
Audiologist in Saint Louis, MO

Q: What is Mary Smith's NPI number?

The NPI number for Mary Smith is 1851886386. It was assigned to this individual provider in the NPPES registry on June 27, 2018. The provider is also known as Mary Elizabeth Duncan Aud.

Q: What is Mary Smith's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Mary Smith was last updated on July 29, 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.

Active since June 27, 2018

100/100

CMS Quality Rating

1 CHILDRENS PL, SAINT LOUIS, MO 63110(314) 454-6000 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 29, 2026, Mar 10, 2023, Nov 26, 2019 and 1 more (4 updates tracked since 2018).

On this page

About Dr. Mary Elizabeth Smith Aud NPPES

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

DR. MARY ELIZABETH SMITH AUD (NPI 1851886386) is an individual audiologist in Saint Louis, Missouri, licensed in Missouri (2023000416) and active in the NPI registry since June 2018. She maintains 2 additional practice locations.

NPPES Registry Identity

NPI1851886386

Entity TypeIndividualFemale

Primary Taxonomy231H00000X

Provider Legal NameDR. MARY ELIZABETH SMITHCredential: AUD

Location Address1 CHILDRENS PLSaint Louis, MO 63110-1002

Mailing Address1 Childrens PlSaint Louis, MO 63110-1002 · (314) 454-6000

Phone(314) 454-6000

Sole ProprietorNo

Enumeration DateJune 27, 2018

Last NPPES UpdateJuly 29, 20264 updates tracked since enumeration

NPPES CertifiedJuly 29, 2026

✔ NPI 1851886386 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers

Taxonomy Code231H00000X

Licenses✔ Licensed in MO · 2023000416✔ Licensed in KY · 260984✔ Licensed in TX · 81075

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.

1 CHILDRENS PL, Saint Louis, MO 63110

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Other Names 1

Former Name (1)Mary Elizabeth Duncan Aud

Secondary Practice Locations 2

Location 16701 Fannin StHouston, TX 77030-2608 · Phone (832) 822-0534

Location 2UK Ear, Nose and Throat Clinic, 740 S Limestone Ste B300Lexington, KY 40536-0284 · Phone (859) 257-5405

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mary Elizabeth Smith Aud is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

St Louis Childrens Hospital

Same address

Pediatrics

1 CHILDRENS PL
Saint Louis, MO 63110

Reassigned Medicare billing, Missouri enrollment
39 clinicians in this Medicare group

NPI 1598398950 (314) 454-6000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

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.

ARIE BAKER MSW, LCSW

Social Worker (Clinical)

1 CHILDRENS PL, CAMPUS BOX 8116
SAINT LOUIS, MO 63110

St. Louis City (314) 747-6169

SUSAN CHEUNG WALSH AUD

Audiologist-Hearing Aid Fitter

1 CHILDRENS PL
SAINT LOUIS, MO 63110

St. Louis City (314) 454-4649

MS. JENNIFER MARIE JACOBI PNP

Nurse Practitioner (Pediatrics)

1 CHILDRENS PL, DEPT NEUROLOGICAL SURGERY, STE 4E
SAINT LOUIS, MO 63110

St. Louis City (314) 362-3577

MS. EMILY LINCOLN RN, NNP-BC

Nurse Practitioner (Neonatal, Critical Care)

1 CHILDRENS PL
SAINT LOUIS, MO 63110

St. Louis City (314) 454-6000

MS. MARISSA ROSE PEREZ-MAGNELLI PNP

Nurse Practitioner (Pediatrics)

1 CHILDRENS PL, DEPT NEUROLOGY, STE 2130
SAINT LOUIS, MO 63110

St. Louis City (314) 454-6120

MRS. BRIANNA LYNN RICHTER NNP-BC

Nurse Practitioner (Neonatal)

1 CHILDRENS PL
SAINT LOUIS, MO 63110

St. Louis City (314) 454-6000

DR. WILLIAM L RIVES MD

Hospitalist

1 CHILDRENS PL, DIV PED HOSPITALIST MED
SAINT LOUIS, MO 63110

St. Louis City (314) 454-2076

DR. PETER M KILBRIDGE MD

Pediatrics

1 CHILDRENS PL, SUITE C
SAINT LOUIS, MO 63110

St. Louis City (314) 454-2479

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 Smith's NPI number?

The NPI number for Mary Smith is 1851886386. It was assigned to this individual provider in the NPPES registry on June 27, 2018. The provider is also known as Mary Elizabeth Duncan Aud.

Where is Mary Smith located?

Mary Smith practices at 1 Childrens Pl, Saint Louis, MO 63110. The listed phone number is (314) 454-6000.

What is Mary Smith's specialty?

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

Is Mary Smith enrolled in Medicare?

Yes. Mary Smith is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Smith's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Smith reassigns Medicare benefits to St Louis Childrens Hospital (Saint Louis, MO). 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 Mary Smith'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 Smith was last updated on July 29, 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.