PAYTON JOSEPH DAVIS
NPI 1881542900
Counselor - Mental Health in Evanston, IL

NPI Status: Active since March 17, 2026

Contact Information

800 AUSTIN ST
EVANSTON, IL
ZIP 60202
Phone: (847) 868-8664

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  • Individual
  • Male
  • Counselor
  • Mental Health

About PAYTON DAVIS

This page provides the complete NPI Profile along with additional information for Payton Davis, a provider established in Evanston, Illinois with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1881542900 assigned on March 2026. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and his NPI record was last updated March 2026.

NPI
1881542900
Provider Name
PAYTON JOSEPH DAVIS
Gender
Male
Entity Type
Individual
Location Address
800 AUSTIN ST EVANSTON, IL 60202
Location Phone
(847) 868-8664
Mailing Address
800 AUSTIN ST EVANSTON, IL 60202
Mailing Phone
(847) 868-8664
Is Sole Proprietor?
No
Enumeration Date
03-17-2026
Last Update Date
03-17-2026
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A mental health counselor like Payton Davis 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

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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 1881542900, 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
8
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
1
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
4
Unchanged
Pos 7
2
Doubled → 4
Pos 8
9
Unchanged
Pos 9
0
Doubled → 0
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 8 → 16 → 7 5 → 10 → 1 2 → 4 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 6 + 1 + 1 + 0 + 4 + 4 + 9 + 0 + 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 1881542900.

Other Providers at the Same Location


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

Internal Medicine (Hematology & Oncology)
800 AUSTIN ST, STE 557
EVANSTON, IL 60202
Pediatrics
800 AUSTIN ST, SUITE 504 W
EVANSTON, IL 60202
Specialist
800 AUSTIN ST, SUITE 501
EVANSTON, IL 60202
Specialist
800 AUSTIN ST, SUITE 408
EVANSTON, IL 60202
Podiatrist (Foot & Ankle Surgery)
800 AUSTIN ST, SUITE #611
EVANSTON, IL 60202
Ophthalmology
800 AUSTIN ST, SUITE 401W
EVANSTON, IL 60202
Specialist
800 AUSTIN ST, SUITE 163
EVANSTON, IL 60202
Family Medicine
800 AUSTIN ST, SUITE 166 EAST TOWER
EVANSTON, IL 60202
Internal Medicine (Cardiovascular Disease)
800 AUSTIN ST, WEST TOWER SUITE 602
EVANSTON, IL 60202
Urology
800 AUSTIN ST, STE 569 EAST TOWER
EVANSTON, IL 60202
Obstetrics & Gynecology
800 AUSTIN ST, #354 EAST TOWER
EVANSTON, IL 60202
Ophthalmology
800 AUSTIN ST, SUITE 507
EVANSTON, IL 60202
Ophthalmology
800 AUSTIN ST, SUITE 360 EAST TOWER
EVANSTON, IL 60202
Specialist
800 AUSTIN ST, SUITE 607
EVANSTON, IL 60202
Obstetrics & Gynecology (Obstetrics)
800 AUSTIN ST, STE 611
EVANSTON, IL 60202
Internal Medicine (Rheumatology)
800 AUSTIN ST, SUITE 208
EVANSTON, IL 60202
Internal Medicine (Cardiovascular Disease)
800 AUSTIN ST, SUITE 454 EAST TOWER
EVANSTON, IL 60202
Family Medicine
800 AUSTIN ST
EVANSTON, IL 60202
Dentist (General Practice)
800 AUSTIN ST, SUITE 506 WEST TOWER
EVANSTON, IL 60202
Orthopaedic Surgery
800 AUSTIN ST, EAST TOWER, SUITE 357
EVANSTON, IL 60202

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1881542900, enumerated as an "individual" on March 17, 2026.

The provider is located at 800 AUSTIN ST EVANSTON, IL 60202 and the phone number is (847) 868-8664.

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