LAWRENCE C BOYNTON CFA
NPI 1669436689
Licensed Practical Nurse in Mishawaka, IN

NPI Status: Active since April 14, 2006

Contact Information

611 E DOUGLAS RD STE 108
MISHAWAKA, IN
ZIP 46545
Phone: (574) 968-9100
Fax: (574) 217-4824

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

Individual
Male
Licensed Practical Nurse

About LAWRENCE BOYNTON

This page provides the complete NPI Profile along with additional information for Lawrence Boynton, a provider established in Mishawaka, Indiana with a medical specialization in Licensed Practical Nurse. The healthcare provider is registered in the NPI registry with number 1669436689 assigned on April 2006. The practitioner's primary taxonomy code is 164W00000X with license number 27033142A (IN). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI: 1669436689
Provider Name: LAWRENCE C BOYNTON CFA
Gender: Male
Entity Type: Individual
Location Address: 611 E DOUGLAS RD STE 108 MISHAWAKA, IN 46545
Location Phone: (574) 968-9100
Location Fax: (574) 217-4824
Mailing Address: 611 E DOUGLAS RD STE 108 MISHAWAKA, IN 46545
Mailing Phone: (574) 968-3516
Mailing Fax: (574) 217-4824
Is Sole Proprietor?: No
Enumeration Date: 04-14-2006
Last Update Date: 02-10-2021
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: Licensed Practical Nurse
Taxonomy Code: 164W00000X
Type: Nursing Service Providers
License No.: 27033142A
License State: IN
Taxonomy Description: A licensed practical nurse with post-high school vocational training and practical experience in the provision of nursing care at a level less than that required for certification as a Registered Nurse. Requirements for education, experience, licensure, and job responsibilities vary among the states.

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 1669436689, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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 → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

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 6 → 12 → 3 4 → 8 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 8 + 3 + 1 + 2 + 6 + 1 + 6 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1669436689.