DR. ELLEN F. STARK PH.D.
NPI 1023197787
Psychologist - Cognitive & Behavioral in Mansfield, OH

NPI Status: Active since November 03, 2006

Contact Information

1150 N MAIN ST
MANSFIELD, OH
ZIP 44903
Phone: (419) 525-4455

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

Individual
Female
Psychologist
Cognitive & Behavioral

About ELLEN STARK

This page provides the complete NPI Profile along with additional information for Ellen Stark, a provider established in Mansfield, Ohio with a medical specialization in Psychologist, focusing in cognitive & behavioral . The healthcare provider is registered in the NPI registry with number 1023197787 assigned on November 2006. The practitioner's primary taxonomy code is 103TB0200X with license number 5647 (OH). The provider is registered as an individual and her NPI record was last updated 17 years ago.

NPI: 1023197787
Provider Name: DR. ELLEN F. STARK PH.D.
Gender: Female
Entity Type: Individual
Location Address: 1150 N MAIN ST MANSFIELD, OH 44903
Location Phone: (419) 525-4455
Mailing Address: 1150 N MAIN ST MANSFIELD, OH 44903
Mailing Phone: (330) 334-3450
Is Sole Proprietor?: Yes
Enumeration Date: 11-03-2006
Last Update Date: 09-21-2009
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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: Psychologist Cognitive & Behavioral
Taxonomy Code: 103TB0200X
Type: Behavioral Health & Social Service Providers
License No.: 5647
License State: OH
Taxonomy Description: A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.

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 1023197787, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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 → 4

Pos 4

Unchanged

Pos 5

Doubled → 2

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 2 → 4 1 → 2 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 + 0 + 4 + 3 + 2 + 9 + 1 + 4 + 7 + 1 + 6 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1023197787.