ANDREW WILLIAMS
NPI 1851908933
Assistant Behavior Analyst in Colorado Springs, CO
NPI Status: Active since September 23, 2020
Contact Information
2120 E LA SALLE ST
COLORADO SPRINGS, CO
ZIP 80909
Phone: (719) 466-4809
Fax: (719) 368-8399
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Male
- Assistant Behavior Analyst
About ANDREW WILLIAMS
This page provides the complete NPI Profile along with additional information for Andrew Williams, a provider established in Colorado Springs, Colorado with a medical specialization in Assistant Behavior Analyst. The healthcare provider is registered in the NPI registry with number 1851908933 assigned on September 2020. The practitioner's primary taxonomy code is 106E00000X with license number 0-24-15174 (CO). The provider is registered as an individual and his NPI record was last updated June 2026.
- NPI
- 1851908933
- Provider Name
- ANDREW WILLIAMS
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2120 E LA SALLE ST COLORADO SPRINGS, CO 80909
- Location Phone
- (719) 466-4809
- Location Fax
- (719) 368-8399
- Mailing Address
- 2120 E LA SALLE ST COLORADO SPRINGS, CO 80909
- Mailing Phone
- (719) 466-4809
- Mailing Fax
- (719) 368-8399
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-23-2020
- Last Update Date
- 06-09-2026
- Code Navigator
Location Map
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
Assistant Behavior Analyst
- Taxonomy Code
- 106E00000X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 0-24-15174
- License State
- CO
- Taxonomy Description
- An assistant behavior analyst is qualified by Behavior Analyst Certification Board certification and/or a state-issued license or credential in behavior analysis to practice under the supervision of an appropriately credentialed professional behavior analyst. An assistant behavior analyst delivers services consistent with the dimensions of applied behavior analysis and supervision requirements defined in state laws or regulations and/or national certification standards. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing behavior-analytic treatment plans, training and supervising others in implementation of components of treatment plans, and direct implementation of treatment plans.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 103K00000X | Behavioral Health & Social Service Providers | Behavior Analyst | (CO) |
| 2 | 106S00000X | Behavioral Health & Social Service Providers | Behavior Technician | RBT-20-136364 (CO) |
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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 1851908933, 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
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.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1851908933, enumerated as an "individual" on September 23, 2020.
The provider is located at 2120 E LA SALLE ST COLORADO SPRINGS, CO 80909 and the phone number is (719) 466-4809.
Assistant Behavior Analyst with taxonomy code 106E00000X.
