DR. MARY LYNN WILLIAMS D.D.S.
NPI 1497040950
Dentist - General Practice in Houston, TX

Q: What is Mary Williams's NPI number?

The NPI number for Mary Williams is 1497040950. It was assigned to this individual provider in the NPPES registry on June 13, 2011.

Q: What is Mary Williams's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for Mary Williams was last updated on June 13, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since June 13, 2011PECOS Enrolled

1436 W GRAY ST, HOUSTON, TX 77019(713) 521-3131(713) 521-1222 Get Directions Write a Review

NPPES record last updated: June 13, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Mary Lynn Williams D.d.s. NPPES

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

DR. MARY LYNN WILLIAMS D.D.S. (NPI 1497040950) is an individual general practice provider in Houston, Texas, licensed in Texas (19144) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497040950

Entity TypeIndividualFemale

Primary Taxonomy1223G0001X

Provider Legal NameDR. MARY LYNN WILLIAMSCredential: D.D.S.

Location Address1436 W GRAY STHouston, TX 77019-4927

Mailing Address1436 W Gray StHouston, TX 77019-4927 · (713) 521-3131 · Fax (713) 521-1222

Phone(713) 521-3131

Fax(713) 521-1222

Sole ProprietorYes

Enumeration DateJune 13, 2011

✔ NPI 1497040950 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in TX · 19144

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

1436 W GRAY ST, Houston, TX 77019

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Humana.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mary Lynn Williams D.d.s. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77019 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

$90.40 typical visit price

range $58.24 – $176.98

Typical copayment $22.60 (range $14.56 – $44.24)

Most-billed visit code 99203

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

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

MEERA VIJAY PATEL DDS

Dentist (General Practice)

1436 W GRAY ST
HOUSTON, TX 77019

Harris County (713) 521-3131

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 1497040950. It was assigned to this individual provider in the NPPES registry on June 13, 2011.

Where is Mary Williams located?

Mary Williams practices at 1436 W Gray St, Houston, TX 77019. The listed phone number is (713) 521-3131.

What is Mary Williams's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is Mary Williams enrolled in Medicare?

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

What insurance does Mary Williams accept?

Health plans from Humana list Mary Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary Williams was last updated on June 13, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.