NANCY WALTHALL FNP-BC
NPI 1891613212
Nurse Practitioner in Fort Worth, TX
NPI Status: Active since July 06, 2026
Contact Information
1500 S MAIN ST
FORT WORTH, TX
ZIP 76104
Phone: (972) 839-0415
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Female
- Nurse Practitioner
About NANCY WALTHALL
This page provides the complete NPI Profile along with additional information for Nancy Walthall, a provider established in Fort Worth, Texas with a medical specialization in Nurse Practitioner. The healthcare provider is registered in the NPI registry with number 1891613212 assigned on July 2026. The practitioner's primary taxonomy code is 363L00000X with license number 973050 (TX). The provider is registered as an individual and her NPI record was last updated July 2026.
- NPI
- 1891613212
- Provider Name
- NANCY WALTHALL FNP-BC
- Other Name
- NANCY MARROQUIN
- Other Name Type
- Former Name (1)
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1500 S MAIN ST FORT WORTH, TX 76104
- Location Phone
- (972) 839-0415
- Mailing Address
- 3813 THICKET WAY MIDLOTHIAN, TX 76065
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-06-2026
- Last Update Date
- 07-06-2026
- Code Navigator
A nurse practitioner (NP) like Nancy Walthall is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.
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
Nurse Practitioner
- Taxonomy Code
- 363L00000X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- 973050
- License State
- TX
- Taxonomy Description
- (1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Reviews for NANCY WALTHALL FNP-BC
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1891613212, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 58 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
FORT WORTH, TX 76104
FORT WORTH, TX 76104
FORT WORTH, TX 76104
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1891613212, enumerated as an "individual" on July 06, 2026.
The provider is located at 1500 S MAIN ST FORT WORTH, TX 76104 and the phone number is (972) 839-0415.
Nurse Practitioner with taxonomy code 363L00000X.
