DR. CHRISTINE M MAYERCHAK PSY.D.
NPI 1396809802
Rehabilitation Counselor in Redding, CA

NPI Status: Active since December 20, 2006

Contact Information

1441 LIBERTY ST
REDDING, CA
ZIP 96001
Phone: (530) 226-1753
Fax: (530) 224-2723

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

Individual
Female
Rehabilitation Counselor

About CHRISTINE MAYERCHAK

This page provides the complete NPI Profile along with additional information for Christine Mayerchak, a provider established in Redding, California with a medical specialization in Rehabilitation Counselor. The healthcare provider is registered in the NPI registry with number 1396809802 assigned on December 2006. The practitioner's primary taxonomy code is 225C00000X. The provider is registered as an individual and her NPI record was last updated 13 years ago.

NPI: 1396809802
Provider Name: DR. CHRISTINE M MAYERCHAK PSY.D.
Gender: Female
Entity Type: Individual
Location Address: 1441 LIBERTY ST REDDING, CA 96001
Location Phone: (530) 226-1753
Location Fax: (530) 224-2723
Mailing Address: 1441 LIBERTY ST REDDING, CA 96001
Mailing Phone: (530) 226-1753
Mailing Fax: (530) 224-2723
Is Sole Proprietor?: No
Enumeration Date: 12-20-2006
Last Update Date: 08-13-2013
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: Rehabilitation Counselor
Taxonomy Code: 225C00000X
Type: Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License State: CA
Taxonomy Description: An individual trained and educated in a systematic process of assisting persons with physical, mental, developmental, cognitive, and emotional disabilities to achieve their personal, career, and independent living goals assessment and appraisal, diagnosis and treatment planning, career (vocational) counseling, individual and group counseling interventions for adjustments to the medical and psychosocial impact of disability, case management, program evaluation and research, job analysis and placement counseling, and consultation on rehabilitation resources and technology. Certification generally requires a Master's degree with specialized courses in rehabilitation processes and technology.

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 1396809802, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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 → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

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 9 → 18 → 9 8 → 16 → 7 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 + 3 + 1 + 8 + 6 + 1 + 6 + 0 + 1 + 8 + 8 + 0 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1396809802.