KATRINA J MASON
NPI 1154933893
Lactation Consultant, Non-RN in Chicago, IL
NPI Status: Active since August 22, 2020
Contact Information
4043 S DREXEL BLVD
CHICAGO, IL
ZIP 60653
Phone: (773) 729-7000
- Individual
- Female
- Lactation Consultant, Non-RN
About KATRINA MASON
This page provides the complete NPI Profile along with additional information for Katrina Mason, a provider established in Chicago, Illinois with a medical specialization in Lactation Consultant, Non-rn. The healthcare provider is registered in the NPI registry with number 1154933893 assigned on August 2020. The practitioner's primary taxonomy code is 174N00000X. The provider is registered as an individual and her NPI record was last updated December 2025.
- NPI
- 1154933893
- Provider Name
- KATRINA J MASON
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 4043 S DREXEL BLVD CHICAGO, IL 60653
- Location Phone
- (773) 729-7000
- Mailing Address
- PO BOX 53614 CHICAGO, IL 60653
- Mailing Phone
- (773) 729-7000
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-22-2020
- Last Update Date
- 12-09-2025
- Code Navigator
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
Lactation Consultant, Non-RN
- Taxonomy Code
- 174N00000X
- Type
- Other Service Providers
- License State
- IL
- Taxonomy Description
- An individual trained to provide breastfeeding assistance services to both mothers and infants. Lactation Consultants are not required to be nurses and are trained through specific courses of education. The Lactation Consultant may have additional certification through a national or international organization.
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 | 225700000X | Respiratory, Developmental, Rehabilitative and Restorative Service Providers | Massage Therapist | 227.018793 (IL) |
| 2 | 374J00000X | Nursing Service Related Providers | Doula |
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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 1154933893, 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.
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 67 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1154933893, enumerated as an "individual" on August 22, 2020.
The provider is located at 4043 S DREXEL BLVD CHICAGO, IL 60653 and the phone number is (773) 729-7000.
Lactation Consultant, Non-RN with taxonomy code 174N00000X.
