ALEXANDROS FISCHER RBT
NPI 1104636877
Behavior Technician in San Angelo, TX

NPI Status: Active since January 13, 2025

Contact Information

136 E CONCHO AVE
SAN ANGELO, TX
ZIP 76903
Phone: (325) 777-2727
Fax: (325) 777-2737

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

Individual
Male
Behavior Technician

About ALEXANDROS FISCHER

This page provides the complete NPI Profile along with additional information for Alexandros Fischer, a provider established in San Angelo, Texas with a medical specialization in Behavior Technician. The healthcare provider is registered in the NPI registry with number 1104636877 assigned on January 2025. The practitioner's primary taxonomy code is 106S00000X with license number RBT-25-404918 (TX). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI: 1104636877
Provider Name: ALEXANDROS FISCHER RBT
Gender: Male
Entity Type: Individual
Location Address: 136 E CONCHO AVE SAN ANGELO, TX 76903
Location Phone: (325) 777-2727
Location Fax: (325) 777-2737
Mailing Address: 136 E CONCHO AVE SAN ANGELO, TX 76903
Mailing Phone: (325) 777-2727
Mailing Fax: (325) 777-2737
Is Sole Proprietor?: No
Enumeration Date: 01-13-2025
Last Update Date: 01-13-2025
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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 Technician
Taxonomy Code: 106S00000X
Type: Behavioral Health & Social Service Providers
License No.: RBT-25-404918
License State: TX
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.

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 1104636877, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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 → 0

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

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 0 → 0 6 → 12 → 3 6 → 12 → 3 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 1 + 2 + 3 + 1 + 2 + 8 + 1 + 4 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1104636877.