SARAH SHARRARD O.D.
NPI 1205219037
Optometrist - Low Vision Rehabilitation in Saginaw, MI

NPI Status: Active since June 29, 2015

Contact Information

2830 MCCARTY RD
SAGINAW, MI
ZIP 48603
Phone: (989) 497-2500

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

Individual
Female
Optometrist
Low Vision Rehabilitation

About SARAH SHARRARD

This page provides the complete NPI Profile along with additional information for Sarah Sharrard, a provider established in Saginaw, Michigan with a medical specialization in Optometrist, focusing in low vision rehabilitation . The healthcare provider is registered in the NPI registry with number 1205219037 assigned on June 2015. The practitioner's primary taxonomy code is 152WL0500X with license number 2950 (CT). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1205219037
Provider Name: SARAH SHARRARD O.D.
Gender: Female
Entity Type: Individual
Location Address: 2830 MCCARTY RD SAGINAW, MI 48603
Location Phone: (989) 497-2500
Mailing Address: 2830 MCCARTY RD SAGINAW, MI 48603
Is Sole Proprietor?: No
Enumeration Date: 06-29-2015
Last Update Date: 05-22-2025
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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: Optometrist Low Vision Rehabilitation
Taxonomy Code: 152WL0500X
Type: Eye and Vision Services Providers
License No.: 2950
License State: CT
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 1205219037, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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 → 0

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 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 0 → 0 2 → 4 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 0 + 5 + 4 + 1 + 1 + 8 + 0 + 6 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1205219037.