DR. MARY LYNN WILLIAMS D.D.S.
NPI 1497040950
Dentist - General Practice in Houston, TX
NPI Status: Active since June 13, 2011
Contact Information
1436 W GRAY ST
HOUSTON, TX
ZIP 77019
Phone: (713) 521-3131
Fax: (713) 521-1222
- Individual
- Female
- Dentist
- General Practice
- Accepts Insurance
- PECOS Enrolled
About MARY WILLIAMS
This page provides the complete NPI Profile along with additional information for Mary Williams, a provider established in Houston, Texas with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1497040950 assigned on June 2011. The practitioner's primary taxonomy code is 1223G0001X with license number 19144 (TX). The provider is registered as an individual and her NPI record was last updated 14 years ago.
- NPI
- 1497040950
- Provider Name
- DR. MARY LYNN WILLIAMS D.D.S.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1436 W GRAY ST HOUSTON, TX 77019
- Location Phone
- (713) 521-3131
- Location Fax
- (713) 521-1222
- Mailing Address
- 1436 W GRAY ST HOUSTON, TX 77019
- Mailing Phone
- (713) 521-3131
- Mailing Fax
- (713) 521-1222
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 06-13-2011
- Last Update Date
- 06-13-2011
- Code Navigator
A dentist like Mary Williams is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Dentist General Practice
- Taxonomy Code
- 1223G0001X
- Type
- Dental Providers
- License No.
- 19144
- License State
- TX
- Taxonomy Description
- 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.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Gold 10 Advanced: $0 PCP + Aetna network + $0 walk-in clinic + Adult Dental + Vision - HMO
- Gold 3 Advanced: Aetna network + $0 walk-in clinic + Adult Dental + Vision - HMO
- Silver 10 Advanced: $0 PCP + Aetna network + $0 walk-in clinic + Adult Dental + Vision - HMO
- Silver S: Aetna network + $0 walk-in clinic + $0 CVS Health Virtual Care 24/7 + Adult Dental+Vision - HMO
- Delta Dental Individual and Family DPO Basic Plan for Families - PPO
- Delta Dental Individual and Family DPO Preferred Plan for Families - PPO
- Delta Dental Individual and Family DPO Preventive Plan for Families - PPO
- Guardian Basics for Families and Individuals - PPO
- Guardian Choice for Families and Individuals - PPO
- Guardian Essentials for Families and Individuals - PPO
- Guardian Preventive Plus for Families and Individuals - PPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Mary Williams is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME) and a Home Health Agency (HHA).
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: No
Physician Visit Costs
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 77019 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $90.4
- Minimum New Patient Price $58.24
- Maximum New Patient Price $176.98
- Average New Patient Copayment $22.6
- Minimum New Patient Copayment $14.56
- Maximum New Patient Copayment $44.24
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $72.62
- Minimum Established Patient Price $18.6
- Maximum Established Patient Price $143.93
- Average Established Patient Copayment $18.15
- Minimum Established Patient Copayment $4.65
- Maximum Established Patient Copayment $35.98
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
Reviews for DR. MARY LYNN WILLIAMS D.D.S.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 4 | 9 | 7 | 0 | 4 | 0 | 9 | 5 | 0 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 4 | 18 | 7 | 0 | 4 | 0 | 9 | 10 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 4 + 1 + 8 + 7 + 0 + 4 + 0 + 9 + 1 + 0 + 24 = 60 | |||||||||
| Step 3: because the number obtained in step 2 ends in zero, the check digit is zero. | |||||||||
| 0 | |||||||||
The NPI number 1497040950 is valid because the calculated check digit 0 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following provider is registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1528637576 | MEERA VIJAY PATEL DDS Individual | Dentist (General Practice) | 1436 W GRAY ST HOUSTON, TX 77019 (713) 521-3131 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1497040950, enumerated in the NPI registry as an "individual" on June 13, 2011
The provider is located at 1436 W Gray St Houston, Tx 77019 and the phone number is (713) 521-3131
The provider's speciality is Dentist with taxonomy code 1223G0001X with a focus in General Practice
The provider might be accepting Accepts: Aetna CVS Health, Delta Dental PPO and Guardian. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME) and a Home Health Agency (HHA).
Medicare beneficiaries should expect a typical cost of $90.4 with an average copayment of $22.6 for new patient appointments. Established patients should expect a typical charge of $72.62 and an average copayment of 18.15. Please review your insurance plan or contact the provider directly to determine your specific costs.
This NPI record was last updated on June 13, 2011. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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