CHESTER RAY HARRIS PHD
NPI 1841586542
Nutritionist - Nutrition, Education in Kingwood, TX

NPI Status: Active since June 22, 2011

Contact Information

2601 W LAKE HOUSTON PKWY
KINGWOOD, TX
ZIP 77339
Phone: (281) 360-7502

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

Individual
Male
Nutritionist
Nutrition, Education

About CHESTER HARRIS

This page provides the complete NPI Profile along with additional information for Chester Harris, a provider established in Kingwood, Texas with a medical specialization in Nutritionist, focusing in nutrition, education . The healthcare provider is registered in the NPI registry with number 1841586542 assigned on June 2011. The practitioner's primary taxonomy code is 133NN1002X. The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI: 1841586542
Provider Name: CHESTER RAY HARRIS PHD
Gender: Male
Entity Type: Individual
Location Address: 2601 W LAKE HOUSTON PKWY KINGWOOD, TX 77339
Location Phone: (281) 360-7502
Mailing Address: 2601 W LAKE HOUSTON PKWY KINGWOOD, TX 77339
Mailing Phone: (281) 360-7502
Is Sole Proprietor?: Yes
Enumeration Date: 06-22-2011
Last Update Date: 06-22-2011
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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: Nutritionist Nutrition, Education
Taxonomy Code: 133NN1002X
Type: Dietary & Nutritional Service Providers

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 1841586542, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 8

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 4 → 8 5 → 10 → 1 6 → 12 → 3 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 1 + 0 + 8 + 1 + 2 + 5 + 8 + 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 1841586542.