REX DANIEL ALIP DAYOLA MA, LCPC
NPI 1003587494
Counselor - Mental Health in Chicago, IL

NPI Status: Active since September 24, 2021

Contact Information

4753 N BROADWAY ST STE 401
CHICAGO, IL
ZIP 60640
Phone: (872) 210-4997

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  • Individual
  • Male
  • Counselor
  • Mental Health

About REX DANIEL DAYOLA

This page provides the complete NPI Profile along with additional information for Rex Daniel Dayola, 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 1003587494 assigned on September 2021. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1003587494
Provider Name
REX DANIEL ALIP DAYOLA MA, LCPC
Gender
Male
Entity Type
Individual
Location Address
4753 N BROADWAY ST STE 401 CHICAGO, IL 60640
Location Phone
(872) 210-4997
Mailing Address
4753 N BROADWAY ST STE 401 CHICAGO, IL 60640
Mailing Phone
(872) 210-4997
Is Sole Proprietor?
Yes
Enumeration Date
09-24-2021
Last Update Date
07-23-2025
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A mental health counselor like Rex Daniel Dayola 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.

Location Map

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 1003587494, 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 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
0
Unchanged
Pos 3
0
Doubled → 0
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
8
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
4
Unchanged
Pos 9
9
Doubled → 18 → 1 + 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 5 → 10 → 1 7 → 14 → 5 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 1 + 0 + 8 + 1 + 4 + 4 + 1 + 8 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1003587494.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Chiropractor
4753 N BROADWAY ST STE 401
CHICAGO, IL 60640
Massage Therapist
4753 N BROADWAY ST STE 401
CHICAGO, IL 60640

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1003587494, enumerated as an "individual" on September 24, 2021.

The provider is located at 4753 N BROADWAY ST STE 401 CHICAGO, IL 60640 and the phone number is (872) 210-4997.

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