KATIE SHAFFER M.ED
NPI 1821894791
Specialist in Dallas, TX

NPI Status: Active since February 21, 2025

Contact Information

8325 WALNUT HILL LN
DALLAS, TX
ZIP 75231
Phone: (214) 691-3535

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  • Individual
  • Female
  • Specialist

About KATIE SHAFFER

This page provides the complete NPI Profile along with additional information for Katie Shaffer, a provider established in Dallas, Texas with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1821894791 assigned on February 2025. The practitioner's primary taxonomy code is 174400000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1821894791
Provider Name
KATIE SHAFFER M.ED
Gender
Female
Entity Type
Individual
Location Address
8325 WALNUT HILL LN DALLAS, TX 75231
Location Phone
(214) 691-3535
Mailing Address
2509 SARATOGA DR PLANO, TX 75075
Mailing Phone
(214) 755-4884
Is Sole Proprietor?
Yes
Enumeration Date
02-21-2025
Last Update Date
02-21-2025
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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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 1821894791, we treat the final digit (1) 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 79. The final step is to find the difference between that total and the next multiple of ten (80 - 79 = 1).

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
8
Unchanged
Pos 3
2
Doubled → 4
Pos 4
1
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
9
Unchanged
Pos 7
4
Doubled → 8
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
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 8 → 16 → 7 4 → 8 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 1 + 6 + 9 + 8 + 7 + 1 + 8 + 24 = 79

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

The next multiple of ten after 79 is 80. The difference is the calculated check digit.

80 - 79 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1821894791.

Other Providers at the Same Location


The following 12 providers are registered at the same or a nearby location.

Otolaryngology (Pediatric Otolaryngology)
8325 WALNUT HILL LN, STE 100
DALLAS, TX 75231
Dentist (Pediatric Dentistry)
8325 WALNUT HILL LN, STE 111
DALLAS, TX 75231
Dentist (Orthodontics and Dentofacial Orthopedics)
8325 WALNUT HILL LN, SUITE 111
DALLAS, TX 75231
Clinic/Center (Primary Care)
8325 WALNUT HILL LN, SUITE 225
DALLAS, TX 75231
Dentist (Prosthodontics)
8325 WALNUT HILL LN
DALLAS, TX 75231
Dentist (General Practice)
8325 WALNUT HILL LN, SUITE 215
DALLAS, TX 75231
Dentist
8325 WALNUT HILL LN, SUITE 215
DALLAS, TX 75231
Pediatrics
8325 WALNUT HILL LN, SUITE 225
DALLAS, TX 75231
Pediatrics
8325 WALNUT HILL LN, SUITE 225
DALLAS, TX 75231
Pediatrics
8325 WALNUT HILL LN, SUITE 225
DALLAS, TX 75231
Pediatrics
8325 WALNUT HILL LN, SUITE 225
DALLAS, TX 75231
Pediatrics
8325 WALNUT HILL LN, STE 225
DALLAS, TX 75231

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1821894791, enumerated as an "individual" on February 21, 2025.

The provider is located at 8325 WALNUT HILL LN DALLAS, TX 75231 and the phone number is (214) 691-3535.

Specialist with taxonomy code 174400000X.