NADINE ADHIAMBO ONYACH
NPI 1831035500
Behavior Technician in Midlothian, VA

NPI Status: Active since April 27, 2026

Contact Information

5205 COMMONWEALTH CENTRE PKWY
MIDLOTHIAN, VA
ZIP 23112
Phone: (804) 977-2770

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

Individual
Female
Behavior Technician

About NADINE ONYACH

This page provides the complete NPI Profile along with additional information for Nadine Onyach, a provider established in Midlothian, Virginia with a medical specialization in Behavior Technician. The healthcare provider is registered in the NPI registry with number 1831035500 assigned on April 2026. The practitioner's primary taxonomy code is 106S00000X with license number RBT-25-427724 (VA). The provider is registered as an individual and her NPI record was last updated April 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI: 1831035500
Provider Name: NADINE ADHIAMBO ONYACH
Gender: Female
Entity Type: Individual
Location Address: 5205 COMMONWEALTH CENTRE PKWY MIDLOTHIAN, VA 23112
Location Phone: (804) 977-2770
Mailing Address: 1504 ARMFIELD RD APT H RICHMOND, VA 23225
Is Sole Proprietor?: Yes
Enumeration Date: 04-27-2026
Last Update Date: 04-27-2026
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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: Behavior Technician
Taxonomy Code: 106S00000X
Type: Behavioral Health & Social Service Providers
License No.: RBT-25-427724
License State: VA
Taxonomy Description: The behavior technician is a paraprofessional who practices under the close, ongoing supervision of a behavior analyst or assistant behavior analyst certified by the Behavior Analyst Certification Board and/or credentialed by a state (such as through licensure). The behavior technician is primarily responsible for the implementation of components of behavior-analytic treatment plans developed by the supervisor. That may include collecting data on treatment targets and conducting certain types of behavioral assessments (e.g., stimulus preference assessments). The behavior technician does not design treatment or assessment plans or procedures but provides services as assigned by the supervisor responsible for his or her work.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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 1831035500, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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 → 6

Pos 4

Unchanged

Pos 5

Doubled → 0

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 0

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 3 → 6 0 → 0 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 6 + 1 + 0 + 3 + 1 + 0 + 5 + 0 + 24 = 50

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

The next multiple of ten after 50 is 50. The difference is the calculated check digit.

50 - 50 = 0

This NPI is valid

The calculated check digit is 0, which matches the last digit of 1831035500.