MICHAEL CASTELLANOS LPC
NPI 1841941838
Counselor in Oak Brook, IL
NPI Status: Active since January 12, 2022
Contact Information
2625 BUTTERFIELD RD
OAK BROOK, IL
ZIP 60523
Phone: (630) 586-0900
- Individual
- Male
- Counselor
About MICHAEL CASTELLANOS
This page provides the complete NPI Profile along with additional information for Michael Castellanos, a provider established in Oak Brook, Illinois with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1841941838 assigned on January 2022. The practitioner's primary taxonomy code is 101Y00000X with license number 180.017004 (IL). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1841941838
- Provider Name
- MICHAEL CASTELLANOS LPC
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2625 BUTTERFIELD RD OAK BROOK, IL 60523
- Location Phone
- (630) 586-0900
- Mailing Address
- 2625 BUTTERFIELD RD STE 101N OAK BROOK, IL 60523
- Mailing Phone
- (630) 586-0900
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-12-2022
- Last Update Date
- 04-15-2025
- Code Navigator
Location Map
Secondary Locations
- 1835 W Central Rd
Arlington Heights, IL 60005
(630) 272-9180
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
Counselor
- Taxonomy Code
- 101Y00000X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 180.017004
- License State
- IL
- Taxonomy Description
- A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
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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 1841941838, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).
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 72 is 80. 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.
OAK BROOK, IL 60523
OAK BROOK, IL 60523
OAK BROOK, IL 60523
OAK BROOK, IL 60523
OAK BROOK, IL 60523
OAK BROOK, IL 60523
OAK BROOK, IL 60523
OAK BROOK, IL 60523
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1841941838, enumerated as an "individual" on January 12, 2022.
The provider is located at 2625 BUTTERFIELD RD OAK BROOK, IL 60523 and the phone number is (630) 586-0900.
Counselor with taxonomy code 101Y00000X.
