MR. MICHAEL GRZEJKA LCP
NPI 1427898238
Counselor - Professional in Geneva, IL

NPI Status: Active since May 29, 2024

Contact Information

622 W STATE ST
GENEVA, IL
ZIP 60134
Phone: (630) 300-8928

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  • Individual
  • Counselor
  • Professional

About MICHAEL GRZEJKA

This page provides the complete NPI Profile along with additional information for Michael Grzejka, a provider established in Geneva, Illinois operating as a Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1427898238 assigned on May 2024. The practitioner's primary taxonomy code is 101YP2500X with license number 178020119 (IL). The provider is registered as an individual and their NPI record was last updated 2 years ago.

NPI
1427898238
Provider Name
MR. MICHAEL GRZEJKA LCP
Gender
Entity Type
Individual
Location Address
622 W STATE ST GENEVA, IL 60134
Location Phone
(630) 300-8928
Mailing Address
229 WHITE OAK ST HAMPSHIRE, IL 60140
Mailing Phone
(847) 226-0416
Is Sole Proprietor?
No
Enumeration Date
05-29-2024
Last Update Date
07-03-2024
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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

Counselor Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
178020119
License State
IL

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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 1427898238, 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.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
2
Doubled → 4
Pos 4
7
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
9
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
Check
8
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 8 → 16 → 7 8 → 16 → 7 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 1 + 6 + 9 + 1 + 6 + 2 + 6 + 24 = 72

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.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1427898238.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427898238, enumerated as an "individual" on May 29, 2024.

The provider is located at 622 W STATE ST GENEVA, IL 60134 and the phone number is (630) 300-8928.

Counselor with taxonomy code 101YP2500X and a focus in Professional.