DENISE ANN PORTZ APNP
NPI 1508702168
Clinical Nurse Specialist - Adult Health in Milwaukee, WI

NPI Status: Active since April 27, 2026

Contact Information

9200 W WISCONSIN AVE
MILWAUKEE, WI
ZIP 53226
Phone: (414) 805-9234

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

Individual
Female
Clinical Nurse Specialist
Adult Health

About DENISE PORTZ

This page provides the complete NPI Profile along with additional information for Denise Portz, a provider established in Milwaukee, Wisconsin with a medical specialization in Clinical Nurse Specialist, focusing in adult health . The healthcare provider is registered in the NPI registry with number 1508702168 assigned on April 2026. The practitioner's primary taxonomy code is 364SA2200X with license number 11744-33 (WI). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI: 1508702168
Provider Name: DENISE ANN PORTZ APNP
Gender: Female
Entity Type: Individual
Location Address: 9200 W WISCONSIN AVE MILWAUKEE, WI 53226
Location Phone: (414) 805-9234
Mailing Address: S101W32975 WESTPOINTE DR MUKWONAGO, WI 53149
Mailing Phone: (414) 378-8257
Is Sole Proprietor?: No
Enumeration Date: 04-27-2026
Last Update Date: 04-27-2026
Code Navigator

A Clinical Nurse Specialist (CNS) like Denise Portz is a type of advanced practice registered nurse (APRN) that provides direct patient care in various nursing specialties, including pediatrics or psychiatric-mental health. CNSs collaborate with other nurses and medical professionals to improve patient care quality. CNSs are often positioned in leadership roles where they may provide education and mentorship to other nursing personnel. Additionally, CNSs may also conduct research and advocate for certain healthcare policies.

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: Clinical Nurse Specialist Adult Health
Taxonomy Code: 364SA2200X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 11744-33
License State: WI

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 1508702168, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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 → 0

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 4

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 0 → 0 7 → 14 → 5 2 → 4 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 1 + 4 + 0 + 4 + 1 + 1 + 2 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1508702168.

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