KATHRYN E ZAO PH.D.
NPI 1679798763
Psychologist - Rehabilitation in Milwaukee, WI

NPI Status: Active since April 16, 2007

Contact Information

9200 W WISCONSIN AVE
FROEDTERT HOSPITAL, NEUROSCIENCES SCIC 5SE
MILWAUKEE, WI
ZIP 53226
Phone: (414) 805-3649
Fax: (414) 805-3600

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Table of Contents

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

Individual
Female
Psychologist
Rehabilitation

About KATHRYN ZAO

This page provides the complete NPI Profile along with additional information for Kathryn Zao, a provider established in Milwaukee, Wisconsin with a medical specialization in Psychologist, focusing in rehabilitation . The healthcare provider is registered in the NPI registry with number 1679798763 assigned on April 2007. The practitioner's primary taxonomy code is 103TR0400X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1679798763
Provider Name: KATHRYN E ZAO PH.D.
Gender: Female
Entity Type: Individual
Location Address: 9200 W WISCONSIN AVE FROEDTERT HOSPITAL, NEUROSCIENCES SCIC 5SE MILWAUKEE, WI 53226
Location Phone: (414) 805-3649
Location Fax: (414) 805-3600
Mailing Address: S67W25105 SKYLINE AVE WAUKESHA, WI 53189
Mailing Phone: (262) 662-3525
Is Sole Proprietor?: No
Enumeration Date: 04-16-2007
Last Update Date: 09-11-2025
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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: Psychologist Rehabilitation
Taxonomy Code: 103TR0400X
Type: Behavioral Health & Social Service Providers
Taxonomy Description: A psychologist who specializes in the study and application of psychological principles on behalf of persons who have disability due to injury or illness. Rehabilitation psychologists, often within teams, assess and treat cognitive, emotional, and functional difficulties, and help people to overcome barriers to participation in life activities. Rehabilitation psychologists are involved in practice, research, and advocacy, with the broad goal of fostering independence and opportunity for people with disabilities.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	103TB0200X	Behavioral Health & Social Service Providers	Psychologist Cognitive & Behavioral	2411-057 (WI)
2	103TH0100X	Behavioral Health & Social Service Providers	Psychologist Health Service

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 1679798763, we treat the final digit (3) 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 3).

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 → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

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 7 → 14 → 5 7 → 14 → 5 8 → 16 → 7 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 1 + 4 + 9 + 1 + 6 + 7 + 1 + 2 + 24 = 77

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

The next multiple of ten after 77 is 80. The difference is the calculated check digit.

80 - 77 = 3

This NPI is valid

The calculated check digit is 3, which matches the last digit of 1679798763.

Other Providers at the Same Location

The following 20 providers are registered at the same or a nearby location.

PAUL WINDISCH PHARM.D.

Pharmacist

9200 W WISCONSIN AVE
MILWAUKEE, WI 53226

Milwaukee County (414) 805-2628

MISS BARBARA SZLENDAKOVA M.S.

Genetic Counselor, MS

9200 W WISCONSIN AVE
MILWAUKEE, WI 53226

Milwaukee County (414) 805-9104

MR. ERIN WILLIAM POOLE CRNA

Nurse Anesthetist, Certified Registered