PROF. XAVIER DIRELL WILLIS M.A.
NPI 1144934852
Psychologist - Health Service in Cleveland Heights, OH

NPI Status: Active since January 09, 2023

Contact Information

2867 MAYFIELD RD APT 1
CLEVELAND HEIGHTS, OH
ZIP 44118
Phone: (216) 645-8677

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  • Individual
  • Male
  • Psychologist
  • Health Service

About XAVIER WILLIS

This page provides the complete NPI Profile along with additional information for Xavier Willis, a provider established in Cleveland Heights, Ohio with a medical specialization in Psychologist, focusing in health service . The healthcare provider is registered in the NPI registry with number 1144934852 assigned on January 2023. The practitioner's primary taxonomy code is 103TH0100X. The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1144934852
Provider Name
PROF. XAVIER DIRELL WILLIS M.A.
Gender
Male
Entity Type
Individual
Location Address
2867 MAYFIELD RD APT 1 CLEVELAND HEIGHTS, OH 44118
Location Phone
(216) 645-8677
Mailing Address
2867 MAYFIELD RD APT 1 CLEVELAND HEIGHTS, OH 44118
Mailing Phone
(216) 645-8677
Is Sole Proprietor?
Yes
Enumeration Date
01-09-2023
Last Update Date
01-09-2023
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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 Health Service

Taxonomy Code
103TH0100X
Type
Behavioral Health & Social Service Providers
Taxonomy Description
A psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose growth, adjustment, or functioning is actually impaired or is demonstrably at high risk of impairment (1974).

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)
1101200000XBehavioral Health & Social Service Providers

Drama Therapist

 
2221700000XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Art Therapist

 

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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 1144934852, 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 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
1
Unchanged
Pos 3
4
Doubled → 8
Pos 4
4
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
3
Unchanged
Pos 7
4
Doubled → 8
Pos 8
8
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 4 → 8 9 → 18 → 9 4 → 8 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 8 + 4 + 1 + 8 + 3 + 8 + 8 + 1 + 0 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1144934852.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Psychologist (Health Service)
2867 MAYFIELD RD APT 1
CLEVELAND HEIGHTS, OH 44118

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1144934852, enumerated as an "individual" on January 09, 2023.

The provider is located at 2867 MAYFIELD RD APT 1 CLEVELAND HEIGHTS, OH 44118 and the phone number is (216) 645-8677.

Psychologist with taxonomy code 103TH0100X and a focus in Health Service.