COURTNEY MARIE MARRS OTR/L
NPI 1841173549
Occupational Therapist - Pediatrics in Palos Heights, IL
NPI Status: Active since July 29, 2025
Contact Information
7808 W COLLEGE DR STE 3W
PALOS HEIGHTS, IL
ZIP 60463
Phone: (219) 301-1090
- Individual
- Female
- Occupational Therapist
- Pediatrics
About COURTNEY MARRS
This page provides the complete NPI Profile along with additional information for Courtney Marrs, a provider established in Palos Heights, Illinois with a medical specialization in Occupational Therapist, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1841173549 assigned on July 2025. The practitioner's primary taxonomy code is 225XP0200X with license number OTH-003504 (AZ). The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1841173549
- Provider Name
- COURTNEY MARIE MARRS OTR/L
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 7808 W COLLEGE DR STE 3W PALOS HEIGHTS, IL 60463
- Location Phone
- (219) 301-1090
- Mailing Address
- 7808 W COLLEGE DR STE 3W PALOS HEIGHTS, IL 60463
- Mailing Phone
- (701) 739-4326
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-29-2025
- Last Update Date
- 07-29-2025
- 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
Occupational Therapist Pediatrics
- Taxonomy Code
- 225XP0200X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- OTH-003504
- License State
- AZ
- Taxonomy Description
- Occupational therapists provide services to infants, toddlers and children who have or who are at risk for developmental delays or disabilities. Occupational therapy is concerned with a child's ability to participate in daily life activities or occupations. Occupational therapists use their unique expertise to help children with social-emotional, physical, cognitive, communication, and adaptive behavioral challenges and to help children to be prepared for and perform important learning and school-related activities and to fulfill their rule as students. Through an understanding of the impact of disability, illness, and impairment on a child's development, plan, ability to learn new skills, and overall occupational performance, occupational therapists design interventions that promote healthy development, establish needed skills, and/or modify environments, all in support of participation in daily activities.
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 | 225XG0600X | Respiratory, Developmental, Rehabilitative and Restorative Service Providers | Occupational Therapist | OTH-003504 (AZ) |
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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 1841173549, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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 71 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1841173549, enumerated as an "individual" on July 29, 2025.
The provider is located at 7808 W COLLEGE DR STE 3W PALOS HEIGHTS, IL 60463 and the phone number is (219) 301-1090.
Occupational Therapist with taxonomy code 225XP0200X and a focus in Pediatrics.
