KERRI MULLIN
NPI 1568338457
Optometrist - Low Vision Rehabilitation in Plymouth, MA

NPI Status: Active since October 16, 2025

Contact Information

81 SAMOSET ST
PLYMOUTH, MA
ZIP 02360
Phone: (508) 830-0012
Fax: (508) 830-0012

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

Individual
Female
Optometrist
Low Vision Rehabilitation

About KERRI MULLIN

This page provides the complete NPI Profile along with additional information for Kerri Mullin, a provider established in Plymouth, Massachusetts with a medical specialization in Optometrist, focusing in low vision rehabilitation . The healthcare provider is registered in the NPI registry with number 1568338457 assigned on October 2025. The practitioner's primary taxonomy code is 152WL0500X with license number 65432 (MA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1568338457
Provider Name: KERRI MULLIN
Gender: Female
Entity Type: Individual
Location Address: 81 SAMOSET ST PLYMOUTH, MA 02360
Location Phone: (508) 830-0012
Location Fax: (508) 830-0012
Mailing Address: 81 SAMOSET ST PLYMOUTH, MA 02360
Mailing Phone: (508) 830-0012
Mailing Fax: (508) 830-0012
Is Sole Proprietor?: No
Enumeration Date: 10-16-2025
Last Update Date: 01-07-2026
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: Optometrist Low Vision Rehabilitation
Taxonomy Code: 152WL0500X
Type: Eye and Vision Services Providers
License No.: 65432
License State: MA
Taxonomy Description: Optometrists who specialize in low-vision care having training to assess visual function, prescribe low-vision devices, develop treatment plans, and recommend other vision rehabilitation services.

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 1568338457, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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 → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

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 3 → 6 8 → 16 → 7 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 2 + 8 + 6 + 3 + 1 + 6 + 4 + 1 + 0 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1568338457.