TRACY ANTOINTTE SHEEN P.A.-C
NPI 1407914344
Physician Assistant - Surgical in Chatsworth, CA

NPI Status: Active since December 04, 2006

Contact Information

9700 DE SOTO AVE
CHATSWORTH, CA
ZIP 91311
Phone: (818) 882-8100

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

Individual
Female
Physician Assistant
Surgical

About TRACY SHEEN

This page provides the complete NPI Profile along with additional information for Tracy Sheen, a provider established in Chatsworth, California with a medical specialization in Physician Assistant, focusing in surgical . The healthcare provider is registered in the NPI registry with number 1407914344 assigned on December 2006. The practitioner's primary taxonomy code is 363AS0400X with license number PA13779 (CA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI: 1407914344
Provider Name: TRACY ANTOINTTE SHEEN P.A.-C
Gender: Female
Entity Type: Individual
Location Address: 9700 DE SOTO AVE CHATSWORTH, CA 91311
Location Phone: (818) 882-8100
Mailing Address: 30404 SEQUOIA CT CASTAIC, CA 91384
Mailing Phone: (661) 775-3753
Is Sole Proprietor?: No
Enumeration Date: 12-04-2006
Last Update Date: 07-08-2007
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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: Physician Assistant Surgical
Taxonomy Code: 363AS0400X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: PA13779
License State: CA

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 1407914344, 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 → 0

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 8

Pos 8

Unchanged

Pos 9

Doubled → 8

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 9 → 18 → 9 4 → 8 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 1 + 8 + 1 + 8 + 3 + 8 + 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 1407914344.