DIANE DONAHUE COTA
NPI 1508705443
Occupational Therapy Assistant in Merrimack, NH

NPI Status: Active since March 26, 2026

Contact Information

11 CONTINENTAL BLVD STE A
MERRIMACK, NH
ZIP 03054
Phone: (603) 424-1950
Fax: (603) 424-4749

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  • Individual
  • Female
  • Occupational Therapy Assistant

About DIANE DONAHUE

This page provides the complete NPI Profile along with additional information for Diane Donahue, a provider established in Merrimack, New Hampshire with a medical specialization in Occupational Therapy Assistant. The healthcare provider is registered in the NPI registry with number 1508705443 assigned on March 2026. The practitioner's primary taxonomy code is 224Z00000X with license number 0177 (NH). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1508705443
Provider Name
DIANE DONAHUE COTA
Gender
Female
Entity Type
Individual
Location Address
11 CONTINENTAL BLVD STE A MERRIMACK, NH 03054
Location Phone
(603) 424-1950
Location Fax
(603) 424-4749
Mailing Address
11 CONTINENTAL BLVD STE A MERRIMACK, NH 03054
Mailing Phone
(603) 424-1950
Mailing Fax
(603) 424-4749
Is Sole Proprietor?
Yes
Enumeration Date
03-26-2026
Last Update Date
03-26-2026
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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 Therapy Assistant

Taxonomy Code
224Z00000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
0177
License State
NH
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 1508705443, 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 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.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
4
Unchanged
Pos 9
4
Doubled → 8
Check
3
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 0 → 0 7 → 14 → 5 5 → 10 → 1 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 1 + 4 + 0 + 1 + 0 + 4 + 8 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1508705443.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Specialist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Speech-Language Pathologist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapy Assistant
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Specialist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054
Physical Therapist
11 CONTINENTAL BLVD STE A
MERRIMACK, NH 03054

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508705443, enumerated as an "individual" on March 26, 2026.

The provider is located at 11 CONTINENTAL BLVD STE A MERRIMACK, NH 03054 and the phone number is (603) 424-1950.

Occupational Therapy Assistant with taxonomy code 224Z00000X.