VICTORIA LARSEN
NPI 1841899283
Nurse Practitioner - Women's Health in Chicago, IL

NPI Status: Active since October 17, 2020

Contact Information

371 W ONTARIO ST
CHICAGO, IL
ZIP 60654
Phone: (312) 724-8448
Fax: (312) 724-8448

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  • Individual
  • Female
  • Nurse Practitioner
  • Women's Health

About VICTORIA LARSEN

This page provides the complete NPI Profile along with additional information for Victoria Larsen, a provider established in Chicago, Illinois with a medical specialization in Nurse Practitioner, focusing in women's health . The healthcare provider is registered in the NPI registry with number 1841899283 assigned on October 2020. The practitioner's primary taxonomy code is 363LW0102X with license number 209021657 (IL). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI
1841899283
Provider Name
VICTORIA LARSEN
Gender
Female
Entity Type
Individual
Location Address
371 W ONTARIO ST CHICAGO, IL 60654
Location Phone
(312) 724-8448
Location Fax
(312) 724-8448
Mailing Address
1130 S CANAL ST STE 1040 CHICAGO, IL 60607
Mailing Phone
(312) 724-8448
Mailing Fax
(312) 724-8448
Is Sole Proprietor?
No
Enumeration Date
10-17-2020
Last Update Date
01-28-2026
Code Navigator

A nurse practitioner (NP) like Victoria Larsen is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

Location Map

Secondary Locations

  • 1528 Aurora Ave
    Naperville, IL 60540
    (312) 724-8448
  • 2567 W Golf Rd
    Hoffman Estates, IL 60169
    (312) 724-8448

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

Nurse Practitioner Women's Health

Taxonomy Code
363LW0102X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
209021657
License State
IL

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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 1841899283, 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
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
3
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 4 → 8 8 → 16 → 7 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 1 + 6 + 9 + 1 + 8 + 2 + 1 + 6 + 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 1841899283.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Pharmacist
371 W ONTARIO ST
CHICAGO, IL 60654
Obstetrics & Gynecology (Reproductive Endocrinology)
371 W ONTARIO ST
CHICAGO, IL 60654
Obstetrics & Gynecology (Reproductive Endocrinology)
371 W ONTARIO ST
CHICAGO, IL 60654

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841899283, enumerated as an "individual" on October 17, 2020.

The provider is located at 371 W ONTARIO ST CHICAGO, IL 60654 and the phone number is (312) 724-8448.

Nurse Practitioner with taxonomy code 363LW0102X and a focus in Women's Health.