TAMI LEIGH HELLEWELL OTR/L
NPI 1891639100
Occupational Therapist - Pediatrics in Marshall, MN

NPI Status: Active since April 16, 2026

Contact Information

100 LONDON RD
MARSHALL, MN
ZIP 56258
Phone: (507) 537-2240

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  • Individual
  • Male
  • Occupational Therapist
  • Pediatrics

About TAMI HELLEWELL

This page provides the complete NPI Profile along with additional information for Tami Hellewell, a provider established in Marshall, Minnesota with a medical specialization in Occupational Therapist, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1891639100 assigned on April 2026. The practitioner's primary taxonomy code is 225XP0200X with license number 1036665 (MN). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1891639100
Provider Name
TAMI LEIGH HELLEWELL OTR/L
Gender
Male
Entity Type
Individual
Location Address
100 LONDON RD MARSHALL, MN 56258
Location Phone
(507) 537-2240
Mailing Address
1123 181ST ST BALATON, MN 56115
Mailing Phone
(507) 220-8149
Is Sole Proprietor?
No
Enumeration Date
04-16-2026
Last Update Date
04-16-2026
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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 Therapist Pediatrics

Taxonomy Code
225XP0200X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
1036665
License State
MN
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.

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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 1891639100, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 2 + 3 + 1 + 8 + 1 + 0 + 24 = 60

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1891639100.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Physical Therapist
100 LONDON RD
MARSHALL, MN 56258
Speech-Language Pathologist
100 LONDON RD
MARSHALL, MN 56258
Local Education Agency (LEA)
100 LONDON RD
MARSHALL, MN 56258
Speech-Language Pathologist
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Speech-Language Pathologist
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Speech-Language Pathologist
100 LONDON RD
MARSHALL, MN 56258
Speech-Language Pathologist
100 LONDON RD
MARSHALL, MN 56258
Registered Nurse
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Speech-Language Pathologist
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Physical Therapist
100 LONDON RD
MARSHALL, MN 56258
Occupational Therapist
100 LONDON RD
MARSHALL, MN 56258
Speech-Language Pathologist
100 LONDON RD
MARSHALL, MN 56258

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891639100, enumerated as an "individual" on April 16, 2026.

The provider is located at 100 LONDON RD MARSHALL, MN 56258 and the phone number is (507) 537-2240.

Occupational Therapist with taxonomy code 225XP0200X and a focus in Pediatrics.