MELISSA NIELSEN ROST O.D.
NPI 1184887184
Optometrist - Corneal and Contact Management in Greensburg, PA

NPI Status: Active since July 09, 2008

Contact Information

2200 GREENGATE CENTRE CIR
GREENSBURG, PA
ZIP 15601
Phone: (724) 830-2452

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

Individual
Female
Optometrist
Corneal and Contact Management

About MELISSA ROST

This page provides the complete NPI Profile along with additional information for Melissa Rost, a provider established in Greensburg, Pennsylvania with a medical specialization in Optometrist, focusing in corneal and contact management . The healthcare provider is registered in the NPI registry with number 1184887184 assigned on July 2008. The practitioner's primary taxonomy code is 152WC0802X with license number OET009008 (PA). The provider is registered as an individual and her NPI record was last updated 18 years ago.

NPI: 1184887184
Provider Name: MELISSA NIELSEN ROST O.D.
Other Name: MELISSA NIELSEN O.D.
Other Name Type: Professional Name (2)
Gender: Female
Entity Type: Individual
Location Address: 2200 GREENGATE CENTRE CIR GREENSBURG, PA 15601
Location Phone: (724) 830-2452
Mailing Address: 482 AUSTRAW RD LIGONIER, PA 15658
Mailing Phone: (724) 238-0402
Is Sole Proprietor?: Yes
Enumeration Date: 07-09-2008
Last Update Date: 07-09-2008
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 Corneal and Contact Management
Taxonomy Code: 152WC0802X
Type: Eye and Vision Services Providers
License No.: OET009008
License State: PA
Taxonomy Description: The professional activities performed by an Optometrist related to the fitting of contact lenses to an eye, ongoing evaluation of the cornea's ability to sustain successful contact lens wear, and treatment of any external eye or corneal condition which can affect contact lens wear.

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 1184887184, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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 → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

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 8 → 16 → 7 8 → 16 → 7 7 → 14 → 5 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 6 + 4 + 1 + 6 + 8 + 1 + 4 + 1 + 1 + 6 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1184887184.