CATHERINE PHILSON CCP
NPI 1790639433
Perfusionist in Milwaukee, WI

NPI Status: Active since February 20, 2026

Contact Information

900 N 92ND ST
MILWAUKEE, WI
ZIP 53226
Phone: (414) 805-3000

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

Individual
Female
Perfusionist

About CATHERINE PHILSON

This page provides the complete NPI Profile along with additional information for Catherine Philson, a provider established in Milwaukee, Wisconsin with a medical specialization in Perfusionist. The healthcare provider is registered in the NPI registry with number 1790639433 assigned on February 2026. The practitioner's primary taxonomy code is 242T00000X with license number 560-18 (WI). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI: 1790639433
Provider Name: CATHERINE PHILSON CCP
Gender: Female
Entity Type: Individual
Location Address: 900 N 92ND ST MILWAUKEE, WI 53226
Location Phone: (414) 805-3000
Mailing Address: 1823 E OLIVE ST SHOREWOOD, WI 53211
Is Sole Proprietor?: No
Enumeration Date: 02-20-2026
Last Update Date: 02-20-2026
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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: Perfusionist
Taxonomy Code: 242T00000X
Type: Technologists, Technicians & Other Technical Service Providers
License No.: 560-18
License State: WI
Taxonomy Description: A perfusionist operates extracorporeal circulation and autotransfusion equipment during any medical situation where it is necessary to support or temporarily replace the patient's circulatory or respiratory function. The perfusionist is knowledgeable concerning the variety of equipment available to perform extracorporeal circulation functions and is responsible, in consultation with the physician, for selecting the appropriate equipment and techniques to be used.

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 1790639433, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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 → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 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 9 → 18 → 9 6 → 12 → 3 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 1 + 2 + 3 + 1 + 8 + 4 + 6 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3

This NPI is valid

The calculated check digit is 3, which matches the last digit of 1790639433.