MR. CHRISTOPHER J TALLMADGE M.A., BCBA
NPI 1891282919
Behavior Analyst in Cherry Hill, NJ

NPI Status: Active since April 13, 2018

Contact Information

923 HADDONFIELD RD STE 300
CHERRY HILL, NJ
ZIP 08002
Phone: (609) 686-4640

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  • Individual
  • Male
  • Behavior Analyst

About CHRISTOPHER TALLMADGE

This page provides the complete NPI Profile along with additional information for Christopher Tallmadge, a provider established in Cherry Hill, New Jersey with a medical specialization in Behavior Analyst. The healthcare provider is registered in the NPI registry with number 1891282919 assigned on April 2018. The practitioner's primary taxonomy code is 103K00000X with license number 01-18-29675 (NJ). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1891282919
Provider Name
MR. CHRISTOPHER J TALLMADGE M.A., BCBA
Gender
Male
Entity Type
Individual
Location Address
923 HADDONFIELD RD STE 300 CHERRY HILL, NJ 08002
Location Phone
(609) 686-4640
Mailing Address
57 RIVER BANK DR ROEBLING, NJ 08554
Mailing Phone
(609) 987-0099
Is Sole Proprietor?
No
Enumeration Date
04-13-2018
Last Update Date
09-25-2025
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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

Behavior Analyst

Taxonomy Code
103K00000X
Type
Behavioral Health & Social Service Providers
License No.
01-18-29675
License State
NJ
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.

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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 1891282919, 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
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
2
Doubled → 4
Pos 6
8
Unchanged
Pos 7
2
Doubled → 4
Pos 8
9
Unchanged
Pos 9
1
Doubled → 2
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 9 → 18 → 9 2 → 4 2 → 4 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 4 + 8 + 4 + 9 + 2 + 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 1891282919.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Dietitian, Registered
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Technician
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Technician
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Technician
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Analyst
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Technician
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Analyst
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Technician
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Analyst
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Home Health
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Analyst
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Technician
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Case Management
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Clinic/Center
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Home Health
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Analyst
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Behavior Analyst
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Community Health Worker
923 HADDONFIELD RD STE 300, #633
CHERRY HILL, NJ 08002
Behavior Analyst
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002
Family Medicine (Geriatric Medicine)
923 HADDONFIELD RD STE 300
CHERRY HILL, NJ 08002

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891282919, enumerated as an "individual" on April 13, 2018.

The provider is located at 923 HADDONFIELD RD STE 300 CHERRY HILL, NJ 08002 and the phone number is (609) 686-4640.

Behavior Analyst with taxonomy code 103K00000X.