MS. YAO MA
NPI 1629293907
Psychologist - Intellectual and Developmental Disabilities in Northbrook, IL

NPI Status: Active since April 13, 2007

Contact Information

3504 COMMERCIAL AVE
NORTHBROOK, IL
ZIP 60062
Phone: (847) 272-5111
Fax: (847) 272-7350

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

Individual
Female
Psychologist
Intellectual and Developmental Disabilit...

About YAO MA

This page provides the complete NPI Profile along with additional information for Yao Ma, a provider established in Northbrook, Illinois with a medical specialization in Psychologist, focusing in intellectual and developmental disabilities . The healthcare provider is registered in the NPI registry with number 1629293907 assigned on April 2007. The practitioner's primary taxonomy code is 103TM1800X with license number 1062730 (). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI: 1629293907
Provider Name: MS. YAO MA
Gender: Female
Entity Type: Individual
Location Address: 3504 COMMERCIAL AVE NORTHBROOK, IL 60062
Location Phone: (847) 272-5111
Location Fax: (847) 272-7350
Mailing Address: 1425 S WOLF RD APT-145 PROSPECT HEIGHTS, IL 60070
Is Sole Proprietor?: No
Enumeration Date: 04-13-2007
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: Psychologist Intellectual and Developmental Disabilities
Taxonomy Code: 103TM1800X
Type: Behavioral Health & Social Service Providers
License No.: 1062730

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 1629293907, 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 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 → 4

Pos 6

Unchanged

Pos 7

Doubled → 6

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 2 → 4 2 → 4 3 → 6 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 4 + 9 + 6 + 9 + 0 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1629293907.