DAYANA QUESADA IZNAGA NP
NPI 1427990779
Nurse Practitioner - Family in Windcrest, TX

NPI Status: Active since April 07, 2026

Contact Information

5245 WALZEM RD
WINDCREST, TX
ZIP 78218
Phone: (210) 654-9700
Fax: (210) 660-1414

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  • Individual
  • Female
  • Nurse Practitioner
  • Family

About DAYANA QUESADA IZNAGA

This page provides the complete NPI Profile along with additional information for Dayana Quesada Iznaga, a provider established in Windcrest, Texas with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1427990779 assigned on April 2026. The practitioner's primary taxonomy code is 363LF0000X with license number 1136515 (TX). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1427990779
Provider Name
DAYANA QUESADA IZNAGA NP
Gender
Female
Entity Type
Individual
Location Address
5245 WALZEM RD WINDCREST, TX 78218
Location Phone
(210) 654-9700
Location Fax
(210) 660-1414
Mailing Address
5245 WALZEM RD WINDCREST, TX 78218
Mailing Phone
(210) 654-9700
Mailing Fax
(210) 660-1414
Is Sole Proprietor?
Yes
Enumeration Date
04-07-2026
Last Update Date
04-07-2026
Code Navigator

A nurse practitioner (NP) like Dayana Quesada Iznaga 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 Family

Taxonomy Code
363LF0000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
1136515
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 1427990779, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 1 + 8 + 9 + 0 + 7 + 1 + 4 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1427990779.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Family Medicine
5245 WALZEM RD
SAN ANTONIO, TX 78218
Physician Assistant
5245 WALZEM RD
WINDCREST, TX 78218
Family Medicine
5245 WALZEM RD
SAN ANTONIO, TX 78218
Nurse Practitioner (Family)
5245 WALZEM RD
WINDCREST, TX 78218
Family Medicine
5245 WALZEM RD
WINDCREST, TX 78218

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427990779, enumerated as an "individual" on April 07, 2026.

The provider is located at 5245 WALZEM RD WINDCREST, TX 78218 and the phone number is (210) 654-9700.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.