GRAYSON LEICHTMAN OTR/L
NPI 1891682746
Occupational Therapist in Rochester, NH
NPI Status: Active since June 23, 2025
Contact Information
10 RAILROAD AVE
ROCHESTER, NH
ZIP 03839
Phone: (603) 332-6487
- Individual
- Occupational Therapist
About GRAYSON LEICHTMAN
This page provides the complete NPI Profile along with additional information for Grayson Leichtman, a provider established in Rochester, New Hampshire operating as a Occupational Therapist. The healthcare provider is registered in the NPI registry with number 1891682746 assigned on June 2025. The practitioner's primary taxonomy code is 225X00000X with license number 3417 (NH). The provider is registered as an individual and their NPI record was last updated one year ago.
- NPI
- 1891682746
- Provider Name
- GRAYSON LEICHTMAN OTR/L
- Gender
- Entity Type
- Individual
- Location Address
- 10 RAILROAD AVE ROCHESTER, NH 03839
- Location Phone
- (603) 332-6487
- Mailing Address
- 567 BAY RD DURHAM, NH 03824
- Mailing Phone
- (603) 988-8938
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-23-2025
- Last Update Date
- 06-23-2025
- 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
- Taxonomy Code
- 225X00000X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- 3417
- License State
- NH
- Taxonomy Description
- An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and 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 therapists 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.
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 | 225X00000X | Respiratory, Developmental, Rehabilitative and Restorative Service Providers | Occupational Therapist | 030179 (NY) |
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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 1891682746, 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 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.
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 74 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1891682746, enumerated as an "individual" on June 23, 2025.
The provider is located at 10 RAILROAD AVE ROCHESTER, NH 03839 and the phone number is (603) 332-6487.
Occupational Therapist with taxonomy code 225X00000X.
