DR. JOHN NICHOLAS LEGGIO
NPI 1023533361
Rehabilitation Counselor in Long Beach, CA

NPI Status: Active since August 08, 2017

Contact Information

1301 PINE AVE
LONG BEACH, CA
ZIP 90813
Phone: (562) 595-1159
Fax: (562) 426-4661

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

Individual
Male
Rehabilitation Counselor

About JOHN LEGGIO

This page provides the complete NPI Profile along with additional information for John Leggio, a provider established in Long Beach, California with a medical specialization in Rehabilitation Counselor. The healthcare provider is registered in the NPI registry with number 1023533361 assigned on August 2017. The practitioner's primary taxonomy code is 225C00000X with license number 2012921 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI: 1023533361
Provider Name: DR. JOHN NICHOLAS LEGGIO
Gender: Male
Entity Type: Individual
Location Address: 1301 PINE AVE LONG BEACH, CA 90813
Location Phone: (562) 595-1159
Location Fax: (562) 426-4661
Mailing Address: 1301 PINE AVE LONG BEACH, CA 90813
Mailing Phone: (562) 595-1159
Mailing Fax: (562) 426-4661
Is Sole Proprietor?: No
Enumeration Date: 08-08-2017
Last Update Date: 07-21-2022
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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: Rehabilitation Counselor
Taxonomy Code: 225C00000X
Type: Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.: 2012921
License State: CA
Taxonomy Description: An individual trained and educated in a systematic process of assisting persons with physical, mental, developmental, cognitive, and emotional disabilities to achieve their personal, career, and independent living goals assessment and appraisal, diagnosis and treatment planning, career (vocational) counseling, individual and group counseling interventions for adjustments to the medical and psychosocial impact of disability, case management, program evaluation and research, job analysis and placement counseling, and consultation on rehabilitation resources and technology. Certification generally requires a Master's degree with specialized courses in rehabilitation processes and technology.

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	390200000X	Student, Health Care	Student in an Organized Health Care Education/Training Program

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 1023533361, we treat the final digit (1) 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 1).

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 → 4

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 6

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 2 → 4 5 → 10 → 1 3 → 6 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 4 + 3 + 1 + 0 + 3 + 6 + 3 + 1 + 2 + 24 = 49

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

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1

This NPI is valid

The calculated check digit is 1, which matches the last digit of 1023533361.