ELIZABETH GRUBER
NPI 1902648744
Counselor - Professional in Chicago, IL

NPI Status: Active since June 11, 2024

Contact Information

155 N MICHIGAN AVE STE 9012
CHICAGO, IL
ZIP 60601
Phone: (331) 240-0044

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  • Individual
  • Female
  • Counselor
  • Professional

About ELIZABETH GRUBER

This page provides the complete NPI Profile along with additional information for Elizabeth Gruber, 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 1902648744 assigned on June 2024. The practitioner's primary taxonomy code is 101YP2500X. The provider is registered as an individual and her NPI record was last updated 2 years ago.

NPI
1902648744
Provider Name
ELIZABETH GRUBER
Gender
Female
Entity Type
Individual
Location Address
155 N MICHIGAN AVE STE 9012 CHICAGO, IL 60601
Location Phone
(331) 240-0044
Mailing Address
117 S COOK ST # 192 BARRINGTON, IL 60010
Mailing Phone
(331) 240-0044
Is Sole Proprietor?
Yes
Enumeration Date
06-11-2024
Last Update Date
06-11-2024
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Location Map

Secondary Locations

  • 117 S Cook St # 192
    Barrington, IL 60010
    (331) 240-0044
  • 222 E Wisconsin Ave Ste 302
    Lake Forest, IL 60045
    (331) 240-0044
  • 155 N Michigan Ave Ste 335
    Chicago, IL 60601
    (331) 240-0044
  • 444 N Northwest Hwy Ste 207
    Park Ridge, IL 60068
    (331) 240-0044

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

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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 1902648744, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
9
Unchanged
Pos 3
0
Doubled → 0
Pos 4
2
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
4
Doubled → 8
Check
4
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 0 → 0 6 → 12 → 3 8 → 16 → 7 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 0 + 2 + 1 + 2 + 4 + 1 + 6 + 7 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1902648744.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Social Worker (Clinical)
155 N MICHIGAN AVE STE 9012
CHICAGO, IL 60601
Counselor (Professional)
155 N MICHIGAN AVE STE 9012
CHICAGO, IL 60601
Counselor (Mental Health)
155 N MICHIGAN AVE STE 9012
CHICAGO, IL 60601

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1902648744, enumerated as an "individual" on June 11, 2024.

The provider is located at 155 N MICHIGAN AVE STE 9012 CHICAGO, IL 60601 and the phone number is (331) 240-0044.

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