ALEXANDRA LYNN LINDHOLM CO
NPI 1659009207
Technician/Technologist - Orthoptist in Grand Rapids, MI

NPI Status: Active since August 11, 2022

Contact Information

100 MICHIGAN ST NE # MC845
GRAND RAPIDS, MI
ZIP 49503
Phone: (616) 486-6790

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

Individual
Female
Technician/Technologist
Orthoptist

About ALEXANDRA LINDHOLM

This page provides the complete NPI Profile along with additional information for Alexandra Lindholm, a provider established in Grand Rapids, Michigan with a medical specialization in Technician/technologist, focusing in orthoptist . The healthcare provider is registered in the NPI registry with number 1659009207 assigned on August 2022. The practitioner's primary taxonomy code is 156FX1900X. The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI: 1659009207
Provider Name: ALEXANDRA LYNN LINDHOLM CO
Gender: Female
Entity Type: Individual
Location Address: 100 MICHIGAN ST NE # MC845 GRAND RAPIDS, MI 49503
Location Phone: (616) 486-6790
Mailing Address: 100 MICHIGAN ST NE # MC GRAND RAPIDS, MI 49503
Mailing Phone: (616) 486-6790
Is Sole Proprietor?: No
Enumeration Date: 08-11-2022
Last Update Date: 08-11-2022
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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: Technician/Technologist Orthoptist
Taxonomy Code: 156FX1900X
Type: Eye and Vision Services Providers
Taxonomy Description: An orthoptist is an allied health professional skilled in evaluation and treatment of children and adults with eye movement difficulties. Their specialty is strabismus, amblyopia, and double vision.

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 1659009207, 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 → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 0

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 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 5 → 10 → 1 0 → 0 9 → 18 → 9 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 0 + 0 + 1 + 8 + 2 + 0 + 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 1659009207.