CAITLIN GRACE SPRAGUE LPC
NPI 1154912129
Counselor - Mental Health in Chicago, IL

NPI Status: Active since February 01, 2021

Contact Information

8 S MICHIGAN AVE
CHICAGO, IL
ZIP 60603
Phone: (312) 346-6230

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NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: July 12, 2026.

Record update history: Jul 7, 2026, Feb 1, 2021 (2 updates tracked since 2021).

  • Individual
  • Female
  • Counselor
  • Mental Health

About CAITLIN SPRAGUE

This page provides the complete NPI Profile along with additional information for Caitlin Sprague, a provider established in Chicago, Illinois with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1154912129 assigned on February 2021. The practitioner's primary taxonomy code is 101YM0800X with license number 178.023054 (IL). The provider is registered as an individual and her NPI record was last updated July 2026.

NPI
1154912129
Provider Name
CAITLIN GRACE SPRAGUE LPC
Gender
Female
Entity Type
Individual
Location Address
8 S MICHIGAN AVE CHICAGO, IL 60603
Location Phone
(312) 346-6230
Mailing Address
8 S MICHIGAN AVE CHICAGO, IL 60603
Mailing Phone
(217) 413-6444
Is Sole Proprietor?
No
Enumeration Date
02-01-2021
Last Update Date
07-07-2026
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A mental health counselor like Caitlin Sprague provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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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 Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
178.023054
License State
IL

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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 1154912129, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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
1
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
4
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
1
Unchanged
Pos 7
2
Doubled → 4
Pos 8
1
Unchanged
Pos 9
2
Doubled → 4
Check
9
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 9 → 18 → 9 2 → 4 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 0 + 4 + 1 + 8 + 1 + 4 + 1 + 4 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1154912129.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Social Worker (Clinical)
8 S MICHIGAN AVE, SUITE 2018
CHICAGO, IL 60603
Audiologist-Hearing Aid Fitter
8 S MICHIGAN AVE, SUITE 1108
CHICAGO, IL 60603
Specialist
8 S MICHIGAN AVE, SUITE 1505
CHICAGO, IL 60603
Psychologist (Clinical)
8 S MICHIGAN AVE, SUITE 1500
CHICAGO, IL 60603
Psychologist (Clinical)
8 S MICHIGAN AVE, SUITE 500
CHICAGO, IL 60603
Psychologist (Clinical)
8 S MICHIGAN AVE, SUITE 802
CHICAGO, IL 60603
Psychologist (Clinical)
8 S MICHIGAN AVE, SUITE 500
CHICAGO, IL 60603
Counselor (Mental Health)
8 S MICHIGAN AVE
CHICAGO, IL 60603
Psychologist
8 S MICHIGAN AVE, SUITE 1500
CHICAGO, IL 60603
Occupational Therapist
8 S MICHIGAN AVE, SUITE 210
CHICAGO, IL 60603
Audiologist
8 S MICHIGAN AVE, STE 1108
CHICAGO, IL 60603
Physical Therapist
8 S MICHIGAN AVE
CHICAGO, IL 60603
Psychologist
8 S MICHIGAN AVE, SUITE 500
CHICAGO, IL 60603
Chiropractor
8 S MICHIGAN AVE, 1420
CHICAGO, IL 60603
Counselor (Professional)
8 S MICHIGAN AVE, SUITE 1500
CHICAGO, IL 60603
Chiropractor (Internist)
8 S MICHIGAN AVE, SUITE 612
CHICAGO, IL 60603
Psychologist (Clinical)
8 S MICHIGAN AVE, SUITE 500
CHICAGO, IL 60603
Psychologist
8 S MICHIGAN AVE, SUITE 1203
CHICAGO, IL 60603
Audiologist-Hearing Aid Fitter
8 S MICHIGAN AVE, STE 1108
CHICAGO, IL 60603
Social Worker (Clinical)
8 S MICHIGAN AVE, SUITE 500
CHICAGO, IL 60603

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1154912129, enumerated as an "individual" on February 01, 2021.

The provider is located at 8 S MICHIGAN AVE CHICAGO, IL 60603 and the phone number is (312) 346-6230.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.