JOI SESSUM PHD
NPI 1154264067
Psychologist - Clinical Child & Adolescent in Ann Arbor, MI

NPI Status: Active since April 14, 2026

Contact Information

4260 PLYMOUTH RD
ANN ARBOR, MI
ZIP 48109
Phone: (734) 529-5080

Recently Updated NPI Information
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.

Table of Contents

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Psychologist
Clinical Child & Adolescent

About JOI SESSUM

This page provides the complete NPI Profile along with additional information for Joi Sessum, a provider established in Ann Arbor, Michigan with a medical specialization in Psychologist, focusing in clinical child & adolescent . The healthcare provider is registered in the NPI registry with number 1154264067 assigned on April 2026. The practitioner's primary taxonomy code is 103TC2200X with license number 6301019832 (MI). The provider is registered as an individual and her NPI record was last updated June 2026.

NPI: 1154264067
Provider Name: JOI SESSUM PHD
Gender: Female
Entity Type: Individual
Location Address: 4260 PLYMOUTH RD ANN ARBOR, MI 48109
Location Phone: (734) 529-5080
Mailing Address: 3621 S STATE ST ANN ARBOR, MI 48108
Mailing Phone: (734) 647-5299
Is Sole Proprietor?: No
Enumeration Date: 04-14-2026
Last Update Date: 06-11-2026
Code Navigator

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: Psychologist Clinical Child & Adolescent
Taxonomy Code: 103TC2200X
Type: Behavioral Health & Social Service Providers
License No.: 6301019832
License State: MI
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	103TC0700X	Behavioral Health & Social Service Providers	Psychologist Clinical	6301019832 (MI)

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 1154264067, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 8

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

Check

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 2 → 4 4 → 8 6 → 12 → 3

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 + 4 + 6 + 8 + 0 + 1 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1154264067.