DR. CATHERINE SUE WILLIAMS DPM
NPI 1356038178
Podiatrist - Foot & Ankle Surgery in Voorhees, NJ

NPI Status: Active since April 21, 2023

Contact Information

400 LAUREL OAK RD STE 105
VOORHEES, NJ
ZIP 08043
Phone: (609) 304-0991

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

Individual
Female
Podiatrist
Foot & Ankle Surgery

About CATHERINE WILLIAMS

This page provides the complete NPI Profile along with additional information for Catherine Williams, a provider established in Voorhees, New Jersey with a medical specialization in Podiatrist, focusing in foot & ankle surgery . The healthcare provider is registered in the NPI registry with number 1356038178 assigned on April 2023. The practitioner's primary taxonomy code is 213ES0103X with license number NA (NJ). The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI: 1356038178
Provider Name: DR. CATHERINE SUE WILLIAMS DPM
Gender: Female
Entity Type: Individual
Location Address: 400 LAUREL OAK RD STE 105 VOORHEES, NJ 08043
Location Phone: (609) 304-0991
Mailing Address: 400 LAUREL OAK RD STE 105 VOORHEES, NJ 08043
Mailing Phone: (609) 304-0991
Is Sole Proprietor?: No
Enumeration Date: 04-21-2023
Last Update Date: 04-21-2023
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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: Podiatrist Foot & Ankle Surgery
Taxonomy Code: 213ES0103X
Type: Podiatric Medicine & Surgery Service Providers
License No.: NA
License State: NJ

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 1356038178, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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 → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

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 8 → 16 → 7 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 0 + 6 + 0 + 3 + 1 + 6 + 1 + 1 + 4 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1356038178.