TINA M STEC M.D.
NPI 1568670586
Preventive Medicine - Addiction Medicine in Milwaukee, WI

NPI Status: Active since May 21, 2007

Contact Information

342 N WATER ST STE 600
MILWAUKEE, WI
ZIP 53202
Phone: (888) 878-4256

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

Individual
Female
Preventive Medicine
Addiction Medicine

About TINA STEC

This page provides the complete NPI Profile along with additional information for Tina Stec, a provider established in Milwaukee, Wisconsin with a medical specialization in Preventive Medicine, focusing in addiction medicine . The healthcare provider is registered in the NPI registry with number 1568670586 assigned on May 2007. The practitioner's primary taxonomy code is 2083A0300X with license number 73190-20 (WI). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI: 1568670586
Provider Name: TINA M STEC M.D.
Gender: Female
Entity Type: Individual
Location Address: 342 N WATER ST STE 600 MILWAUKEE, WI 53202
Location Phone: (888) 878-4256
Mailing Address: 2800 E ENTERPRISE AVE STE 333 APPLETON, WI 54913
Mailing Phone: (888) 878-4256
Is Sole Proprietor?: No
Enumeration Date: 05-21-2007
Last Update Date: 03-17-2026
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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: Preventive Medicine Addiction Medicine
Taxonomy Code: 2083A0300X
Type: Allopathic & Osteopathic Physicians
License No.: 73190-20
License State: WI
Taxonomy Description: A physician engaged in the subspecialty practice of Addiction Medicine who specializes in the prevention, evaluation, diagnosis, treatment, and recovery of persons with the disease of addiction.

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 1568670586, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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 → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 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 6 → 12 → 3 6 → 12 → 3 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 2 + 8 + 1 + 2 + 7 + 0 + 5 + 1 + 6 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1568670586.