KATHRYN CROSLOW RN, CLC
NPI 1770418279
Registered Nurse - Lactation Consultant in St Charles, IL
NPI Status: Active since June 16, 2026
Contact Information
511 ILLINOIS AVE
ST CHARLES, IL
ZIP 60174
Phone: (815) 762-3732
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Female
- Registered Nurse
- Lactation Consultant
About KATHRYN CROSLOW
This page provides the complete NPI Profile along with additional information for Kathryn Croslow, a provider established in St Charles, Illinois with a medical specialization in Registered Nurse, focusing in lactation consultant . The healthcare provider is registered in the NPI registry with number 1770418279 assigned on June 2026. The practitioner's primary taxonomy code is 163WL0100X with license number 041.389655 (IL). The provider is registered as an individual and her NPI record was last updated June 2026.
- NPI
- 1770418279
- Provider Name
- KATHRYN CROSLOW RN, CLC
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 511 ILLINOIS AVE ST CHARLES, IL 60174
- Location Phone
- (815) 762-3732
- Mailing Address
- 511 ILLINOIS AVE ST CHARLES, IL 60174
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-16-2026
- Last Update Date
- 06-16-2026
- Code Navigator
A registered nurse (RN) like Kathryn Croslow coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.
Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.
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
Registered Nurse Lactation Consultant
- Taxonomy Code
- 163WL0100X
- Type
- Nursing Service Providers
- License No.
- 041.389655
- License State
- IL
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 | 133NN1002X | Dietary & Nutritional Service Providers | Nutritionist | ALPP-338454 (IL) |
| 2 | 163WM0102X | Nursing Service Providers | Registered Nurse | 041.389655 (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 1770418279, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 61 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 9 providers are registered at the same or a nearby location.
SAINT CHARLES, IL 60174
ST CHARLES, IL 60174
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1770418279, enumerated as an "individual" on June 16, 2026.
The provider is located at 511 ILLINOIS AVE ST CHARLES, IL 60174 and the phone number is (815) 762-3732.
Registered Nurse with taxonomy code 163WL0100X and a focus in Lactation Consultant.
