Dr. Mary L. Williams D.D.S.
Dentist
She is located at 1436 West Gray Street in Houston, TX 77019. Can help patients with the following: Cosmetic Dentistry, Dental Crowns and Caps, Invisalign, Laser, Teeth Whitening, Veneers. Her National Provider Identifier (NPI) number is 1497040950. Appointment can be made via the phone number (713) 521-3131. She is affiliated with 1 practices.
Conditions treated
Dr. Mary Lynn Williams, being an dentist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Mary L. Williams.
- Bleeding Gums
- Cosmetic Dentistry
- Dental Bridges
- Dental Crowns and Caps
- Dental Emergency
- Dental Exam and Cleaning
- Dental Implants
- Dental Malocclusion
- Dentin Hypersensitivity
- Dentures
- Gum Disease / Gingivitis
- Invisalign
- Laser
- Oral Cancer Examination
- Pericoronitis
- Teeth Grinding
- Teeth Whitening
- Veneers
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Mary L. Williams as in-network for the following 2026 plans.
Dental plans
Humana
Network data as of Sep 13, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Humana Dental Smart Choice - High | PPO · High | Preferred | Accepting new patients |
| Humana Dental Smart Choice - Lite | PPO · Low | Preferred | Accepting new patients |
| Humana Dental Smart Choice - Low | PPO · Low | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Mary L. Williams is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Mary L. Williams is enrolled to bill Medicare as a Order And Referring Only - Dentist (also registered under: Practitioner - Dentist) .
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Promius Pharma | $26 |
| AstraZeneca | $18 |
Other
| Food and Beverage | $45 |
Looking for more Dentists?
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- Address: 1355 West Gray Street Houston, 77019, TX
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- Address: 530 Waugh Drive Houston, 77019, TX
- Gender: Male
- Address: 277 West Gray Street Houston, 77019, TX
- Gender: Female
- Address: 1930 West Bell Street Houston, 77019, TX
- Gender: Male
- Address: 1301 Waugh Drive Houston, 77019, TX
Questions & Answers
What conditions does Dr. Mary Lynn Williams treat?
Dr. Mary Lynn Williams provides treatment for Cosmetic Dentistry, Dental Crowns and Caps, Invisalign, Laser, Teeth Whitening, Veneers. For the full list see this list.
Where can you meet with Dr. Mary Lynn Williams?
Dr. Mary Lynn Williams's office is located at 1436 West Gray Street in Houston, TX 77019.
Does Dr. Mary Lynn Williams have affiliation with practices?
Dr. Mary Lynn Williams is affiliated with River Oaks Dental Arts.
Does Dr. Mary Lynn Williams accept insurance?
Dr. Mary Lynn Williams is listed in-network for 3 ACA Marketplace (Obamacare/HealthCare.gov) plans from Humana. See the Marketplace plans section for details.