ALEXANDER THOI
NPI 1487545182
Psychologist - Clinical Child & Adolescent in Pittsburgh, PA

NPI Status: Active since July 10, 2025

Contact Information

100 N BELLEFIELD AVE
PITTSBURGH, PA
ZIP 15213
Phone: (412) 624-1000

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  • Individual
  • Male
  • Psychologist
  • Clinical Child & Adolescent

About ALEXANDER THOI

This page provides the complete NPI Profile along with additional information for Alexander Thoi, a provider established in Pittsburgh, Pennsylvania with a medical specialization in Psychologist, focusing in clinical child & adolescent . The healthcare provider is registered in the NPI registry with number 1487545182 assigned on July 2025. The practitioner's primary taxonomy code is 103TC2200X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1487545182
Provider Name
ALEXANDER THOI
Gender
Male
Entity Type
Individual
Location Address
100 N BELLEFIELD AVE PITTSBURGH, PA 15213
Location Phone
(412) 624-1000
Mailing Address
100 N BELLEFIELD AVE PITTSBURGH, PA 15213
Mailing Phone
(412) 624-1000
Is Sole Proprietor?
No
Enumeration Date
07-10-2025
Last Update Date
07-10-2025
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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

Psychologist Clinical Child & Adolescent

Taxonomy Code
103TC2200X
Type
Behavioral Health & Social Service Providers
Taxonomy Description
A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.

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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 1487545182, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 6 + 7 + 1 + 0 + 4 + 1 + 0 + 1 + 1 + 6 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1487545182.

Other Providers at the Same Location


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

Social Worker (Clinical)
100 N BELLEFIELD AVE, 4TH FLOOR
PITTSBURGH, PA 15213
Social Worker (Clinical)
100 N BELLEFIELD AVE
PITTSBURGH, PA 15213
Social Worker (Clinical)
100 N BELLEFIELD AVE
PITTSBURGH, PA 15213
Social Worker (Clinical)
100 N BELLEFIELD AVE, BELLEFIELD TOWERS, SIXTH FLOOR
PITTSBURGH, PA 15213
Counselor (Mental Health)
100 N BELLEFIELD AVE
PITTSBURGH, PA 15213
Social Worker (Clinical)
100 N BELLEFIELD AVE, 4TH FLOOR
PITTSBURGH, PA 15213
Counselor (School)
100 N BELLEFIELD AVE, SIXTH FLOOR
PITTSBURGH, PA 15213
Registered Nurse (Psychiatric/Mental Health, Child & Adolescent)
100 N BELLEFIELD AVE
PITTSBURGH, PA 15213
Registered Nurse (Psychiatric/Mental Health, Child & Adolescent)
100 N BELLEFIELD AVE
PITTSBURGH, PA 15213
Counselor
100 N BELLEFIELD AVE, CCF 6TH FLOOR
PITTSBURGH, PA 15213
Psychologist
100 N BELLEFIELD AVE
PITTSBURGH, PA 15213
Social Worker
100 N BELLEFIELD AVE
PITTSBURGH, PA 15213
Counselor (Mental Health)
100 N BELLEFIELD AVE
PITTSBURGH, PA 15213
Clinic/Center (Adolescent and Children Mental Health)
100 N BELLEFIELD AVE, 6TH FLOOR
PITTSBURGH, PA 15213
Counselor
100 N BELLEFIELD AVE, OFFICE 409
PITTSBURGH, PA 15213
Counselor (Professional)
100 N BELLEFIELD AVE, 4TH FLOOR WIOP
PITTSBURGH, PA 15213
Social Worker (Clinical)
100 N BELLEFIELD AVE, BELLEFIELD TOWERS FOURTH FLOOR
PITTSBURGH, PA 15213
Social Worker (Clinical)
100 N BELLEFIELD AVE, 4TH FLOOR
PITTSBURGH, PA 15213
Psychiatric Hospital
100 N BELLEFIELD AVE, ROOM 463
PITTSBURGH, PA 15213
Counselor (Professional)
100 N BELLEFIELD AVE, 662
PITTSBURGH, PA 15213

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1487545182, enumerated as an "individual" on July 10, 2025.

The provider is located at 100 N BELLEFIELD AVE PITTSBURGH, PA 15213 and the phone number is (412) 624-1000.

Psychologist with taxonomy code 103TC2200X and a focus in Clinical Child & Adolescent.