MADELYNN WILLIAMS
NPI 1699603274
Registered Nurse - Women's Health Care, Ambulatory in Austin, TX

NPI Status: Active since May 12, 2026

Contact Information

6500 N MOPAC EXPY STE 1200
AUSTIN, TX
ZIP 78731
Phone: (512) 451-0149

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  • Individual
  • Female
  • Registered Nurse
  • Women's Health Care, Ambulatory

About MADELYNN WILLIAMS

This page provides the complete NPI Profile along with additional information for Madelynn Williams, a provider established in Austin, Texas with a medical specialization in Registered Nurse, focusing in women's health care, ambulatory . The healthcare provider is registered in the NPI registry with number 1699603274 assigned on May 2026. The practitioner's primary taxonomy code is 163WW0101X with license number 1120810 (TX). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1699603274
Provider Name
MADELYNN WILLIAMS
Gender
Female
Entity Type
Individual
Location Address
6500 N MOPAC EXPY STE 1200 AUSTIN, TX 78731
Location Phone
(512) 451-0149
Mailing Address
6500 N MOPAC EXPY STE 1200 AUSTIN, TX 78731
Is Sole Proprietor?
No
Enumeration Date
05-12-2026
Last Update Date
05-12-2026
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A registered nurse (RN) like Madelynn Williams coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.

Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.

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

Registered Nurse Women's Health Care, Ambulatory

Taxonomy Code
163WW0101X
Type
Nursing Service Providers
License No.
1120810
License State
TX

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1699603274, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
0
Unchanged
Pos 7
3
Doubled → 6
Pos 8
2
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
4
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 6 → 12 → 3 3 → 6 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 1 + 8 + 9 + 1 + 2 + 0 + 6 + 2 + 1 + 4 + 24 = 66

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1699603274.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Obstetrics & Gynecology
6500 N MOPAC EXPY STE 1200
AUSTIN, TX 78731
Obstetrics & Gynecology (Reproductive Endocrinology)
6500 N MOPAC EXPY STE 1200
AUSTIN, TX 78731
Registered Nurse (Reproductive Endocrinology/Infertility)
6500 N MOPAC EXPY STE 1200
AUSTIN, TX 78731

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1699603274, enumerated as an "individual" on May 12, 2026.

The provider is located at 6500 N MOPAC EXPY STE 1200 AUSTIN, TX 78731 and the phone number is (512) 451-0149.

Registered Nurse with taxonomy code 163WW0101X and a focus in Women's Health Care, Ambulatory.