GRACE ALEXANDRA LINDAHL MA
NPI 1215713490
Counselor - Professional in Chicago, IL

NPI Status: Active since September 05, 2023

Contact Information

6321 N AVONDALE AVE STE 204
CHICAGO, IL
ZIP 60631
Phone: (773) 774-4444

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  • Individual
  • Female
  • Counselor
  • Professional

About GRACE LINDAHL

This page provides the complete NPI Profile along with additional information for Grace Lindahl, a provider established in Chicago, Illinois with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1215713490 assigned on September 2023. The practitioner's primary taxonomy code is 101YP2500X. The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI
1215713490
Provider Name
GRACE ALEXANDRA LINDAHL MA
Gender
Female
Entity Type
Individual
Location Address
6321 N AVONDALE AVE STE 204 CHICAGO, IL 60631
Location Phone
(773) 774-4444
Mailing Address
6149 N BROADWAY ST APT 515 CHICAGO, IL 60660
Mailing Phone
(979) 571-0378
Is Sole Proprietor?
No
Enumeration Date
09-05-2023
Last Update Date
09-05-2023
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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 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 1215713490, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
2
Unchanged
Pos 3
1
Doubled → 2
Pos 4
5
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
3
Doubled → 6
Pos 8
4
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
0
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 1 → 2 7 → 14 → 5 3 → 6 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 2 + 5 + 1 + 4 + 1 + 6 + 4 + 1 + 8 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1215713490.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Social Worker (Clinical)
6321 N AVONDALE AVE STE 204
CHICAGO, IL 60631
Social Worker (Clinical)
6321 N AVONDALE AVE STE 204
CHICAGO, IL 60631
Social Worker (Clinical)
6321 N AVONDALE AVE STE 204
CHICAGO, IL 60631
Social Worker
6321 N AVONDALE AVE STE 204
CHICAGO, IL 60631

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215713490, enumerated as an "individual" on September 05, 2023.

The provider is located at 6321 N AVONDALE AVE STE 204 CHICAGO, IL 60631 and the phone number is (773) 774-4444.

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