ABIGAL KATE LUDKE BCBA, COBA, LBA
NPI 1548139587
Behavior Analyst in Portsmouth, OH

NPI Status: Active since October 29, 2025

Contact Information

1112 GALLIA ST
PORTSMOUTH, OH
ZIP 45662
Phone: (740) 981-3176

NPI Profile Information
Primary Taxonomy
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Behavior Analyst

About ABIGAL LUDKE

This page provides the complete NPI Profile along with additional information for Abigal Ludke, a provider established in Portsmouth, Ohio with a medical specialization in Behavior Analyst. The healthcare provider is registered in the NPI registry with number 1548139587 assigned on October 2025. The practitioner's primary taxonomy code is 103K00000X with license number 1-25-80812 (OH). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI: 1548139587
Provider Name: ABIGAL KATE LUDKE BCBA, COBA, LBA
Other Name: ROOTED BEHAVIOR AND LEARNING LLC
Other Name Type: Other Name (5)
Gender: Female
Entity Type: Individual
Location Address: 1112 GALLIA ST PORTSMOUTH, OH 45662
Location Phone: (740) 981-3176
Mailing Address: 3031 PENROSE PL CINCINNATI, OH 45211
Mailing Phone: (513) 535-0655
Is Sole Proprietor?: Yes
Enumeration Date: 10-29-2025
Last Update Date: 01-18-2026
Code Navigator

Location Map

Secondary Locations

3031 Penrose Pl
Cincinnati, OH 45211
(513) 535-0655

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: Behavior Analyst
Taxonomy Code: 103K00000X
Type: Behavioral Health & Social Service Providers
License No.: 1-25-80812
License State: OH
Taxonomy Description: A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.

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 1548139587, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

Check

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 4 → 8 1 → 2 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 8 + 8 + 2 + 3 + 1 + 8 + 5 + 1 + 6 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1548139587.