KAREN RUEDINGER LLMSW
NPI 1255211165
Counselor - Professional in Grand Rapids, MI

NPI Status: Active since September 03, 2025

Contact Information

500 CASCADE WEST PKWY SE STE 240
GRAND RAPIDS, MI
ZIP 49546
Phone: (616) 591-9000
Fax: (616) 591-9060

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

Individual
Female
Counselor
Professional

About KAREN RUEDINGER

This page provides the complete NPI Profile along with additional information for Karen Ruedinger, a provider established in Grand Rapids, Michigan with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1255211165 assigned on September 2025. The practitioner's primary taxonomy code is 101YP2500X with license number 6851120837 (MI). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1255211165
Provider Name: KAREN RUEDINGER LLMSW
Gender: Female
Entity Type: Individual
Location Address: 500 CASCADE WEST PKWY SE STE 240 GRAND RAPIDS, MI 49546
Location Phone: (616) 591-9000
Location Fax: (616) 591-9060
Mailing Address: 4565 WILSON AVE SW GRANDVILLE, MI 49418
Mailing Phone: (616) 591-9000
Mailing Fax: (616) 591-9060
Is Sole Proprietor?: No
Enumeration Date: 09-03-2025
Last Update Date: 09-03-2025
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Location Map

Secondary Locations

4565 Wilson Ave SW
Grandville, MI 49418
(616) 591-9000

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.: 6851120837
License State: MI

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	101YM0800X	Behavioral Health & Social Service Providers	Counselor Mental Health	6851120837 (MI)

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 1255211165, we treat the final digit (5) 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 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 5).

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 → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

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 5 → 10 → 1 2 → 4 1 → 2 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 0 + 5 + 4 + 1 + 2 + 1 + 1 + 2 + 24 = 45

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

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5

This NPI is valid

The calculated check digit is 5, which matches the last digit of 1255211165.