ELLIE JEAN FELDHAUS
NPI 1093689366
Occupational Therapy Assistant in Clark, SD

NPI Status: Active since October 01, 2025

Contact Information

201 8TH AVE NW
CLARK, SD
ZIP 57225
Phone: (605) 532-3431

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  • Individual
  • Female
  • Occupational Therapy Assistant

About ELLIE FELDHAUS

This page provides the complete NPI Profile along with additional information for Ellie Feldhaus, a provider established in Clark, South Dakota with a medical specialization in Occupational Therapy Assistant. The healthcare provider is registered in the NPI registry with number 1093689366 assigned on October 2025. The practitioner's primary taxonomy code is 224Z00000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1093689366
Provider Name
ELLIE JEAN FELDHAUS
Gender
Female
Entity Type
Individual
Location Address
201 8TH AVE NW CLARK, SD 57225
Location Phone
(605) 532-3431
Mailing Address
15 1ST ST NW APT 209 WATERTOWN, SD 57201
Mailing Phone
(605) 824-4724
Is Sole Proprietor?
No
Enumeration Date
10-01-2025
Last Update Date
10-01-2025
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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

Occupational Therapy Assistant

Taxonomy Code
224Z00000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License State
SD
Taxonomy Description
An occupational therapy assistant is a person who has graduated from an occupational therapy assistant program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, has successfully completed a period of supervised fieldwork experience required by the accredited occupational therapy assistant program, has passed a nationally recognized entry-level examination for occupational therapy assistants, and fulfills state requirements for licensure, certification, or registration. An occupational therapy assistant provides interventions under the supervision of an occupational therapist which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapy assistants address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.

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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 1093689366, 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
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
3
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
6
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 9 → 18 → 9 6 → 12 → 3 9 → 18 → 9 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 8 + 3 + 1 + 2 + 8 + 1 + 8 + 3 + 1 + 2 + 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 1093689366.

Other Providers at the Same Location


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

Physical Therapy Assistant
201 8TH AVE NW
CLARK, SD 57225
Skilled Nursing Facility
201 8TH AVE NW
CLARK, SD 57225
Skilled Nursing Facility
201 8TH AVE NW
CLARK, SD 57225

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1093689366, enumerated as an "individual" on October 01, 2025.

The provider is located at 201 8TH AVE NW CLARK, SD 57225 and the phone number is (605) 532-3431.

Occupational Therapy Assistant with taxonomy code 224Z00000X.