MR. LEONARD B. HARMON
NPI 1417747064
Technician - Personal Care Attendant in Northborough, MA

NPI Status: Active since May 07, 2025

Contact Information

380 SW CUTOFF RM 116
NORTHBOROUGH, MA
ZIP 01532
Phone: (617) 877-9779
Fax: (617) 830-9444

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  • Individual
  • Male
  • Technician
  • Personal Care Attendant

About LEONARD HARMON

This page provides the complete NPI Profile along with additional information for Leonard Harmon, a provider established in Northborough, Massachusetts with a medical specialization in Technician, focusing in personal care attendant . The healthcare provider is registered in the NPI registry with number 1417747064 assigned on May 2025. The practitioner's primary taxonomy code is 3747P1801X with license number S27564757 (MA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1417747064
Provider Name
MR. LEONARD B. HARMON
Gender
Male
Entity Type
Individual
Location Address
380 SW CUTOFF RM 116 NORTHBOROUGH, MA 01532
Location Phone
(617) 877-9779
Location Fax
(617) 830-9444
Mailing Address
380 SW CUTOFF RM 116 NORTHBOROUGH, MA 01532
Mailing Phone
(617) 877-9779
Mailing Fax
(617) 830-9444
Is Sole Proprietor?
Yes
Enumeration Date
05-07-2025
Last Update Date
05-10-2025
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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

Technician Personal Care Attendant

Taxonomy Code
3747P1801X
Type
Nursing Service Related Providers
License No.
S27564757
License State
MA
Taxonomy Description
An individual who provides assistance with eating, bathing, dressing, personal hygiene, activities of daily living as specified in the plan of care. Services which are incidental to the care furnished, or essential to the health and welfare of the individual may also be provided. Personal care providers must meet state defined training and certification standards

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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 1417747064, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
4
Unchanged
Pos 3
1
Doubled → 2
Pos 4
7
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
4
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
0
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
4
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 1 → 2 7 → 14 → 5 7 → 14 → 5 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 2 + 7 + 1 + 4 + 4 + 1 + 4 + 0 + 1 + 2 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1417747064.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1417747064, enumerated as an "individual" on May 07, 2025.

The provider is located at 380 SW CUTOFF RM 116 NORTHBOROUGH, MA 01532 and the phone number is (617) 877-9779.

Technician with taxonomy code 3747P1801X and a focus in Personal Care Attendant.