DEIRDRA ANDREA CHAPPELL
NPI 1326986233
Behavior Technician in Rehoboth Beach, DE

NPI Status: Active since March 23, 2026

Contact Information

18564 FIR DRIVE EXT
REHOBOTH BEACH, DE
ZIP 19971
Phone: (443) 991-1134

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  • Individual
  • Female
  • Behavior Technician

About DEIRDRA CHAPPELL

This page provides the complete NPI Profile along with additional information for Deirdra Chappell, a provider established in Rehoboth Beach, Delaware with a medical specialization in Behavior Technician. The healthcare provider is registered in the NPI registry with number 1326986233 assigned on March 2026. The practitioner's primary taxonomy code is 106S00000X. The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1326986233
Provider Name
DEIRDRA ANDREA CHAPPELL
Gender
Female
Entity Type
Individual
Location Address
18564 FIR DRIVE EXT REHOBOTH BEACH, DE 19971
Location Phone
(443) 991-1134
Mailing Address
18564 FIR DRIVE EXT REHOBOTH BEACH, DE 19971
Is Sole Proprietor?
No
Enumeration Date
03-23-2026
Last Update Date
03-23-2026
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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
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.

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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 1326986233, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
3
Unchanged
Pos 3
2
Doubled → 4
Pos 4
6
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
8
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
Check
3
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 6 → 12 → 3 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 4 + 6 + 1 + 8 + 8 + 1 + 2 + 2 + 6 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1326986233.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1326986233, enumerated as an "individual" on March 23, 2026.

The provider is located at 18564 FIR DRIVE EXT REHOBOTH BEACH, DE 19971 and the phone number is (443) 991-1134.

Behavior Technician with taxonomy code 106S00000X.