DR. LEWIS EWING JOHNSON DVM
NPI 1497990675
Veterinarian in Charlestown, RI

NPI Status: Active since December 02, 2008

Contact Information

4259 OLD POST RD
CHARLESTOWN, RI
ZIP 02813
Phone: (401) 364-6630
Fax: (401) 364-9910

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  • Individual
  • Male
  • Veterinarian

About LEWIS JOHNSON

This page provides the complete NPI Profile along with additional information for Lewis Johnson, a provider established in Charlestown, Rhode Island with a medical specialization in Veterinarian. The healthcare provider is registered in the NPI registry with number 1497990675 assigned on December 2008. The practitioner's primary taxonomy code is 174M00000X with license number DVM00315 (RI). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1497990675
Provider Name
DR. LEWIS EWING JOHNSON DVM
Gender
Male
Entity Type
Individual
Location Address
4259 OLD POST RD CHARLESTOWN, RI 02813
Location Phone
(401) 364-6630
Location Fax
(401) 364-9910
Mailing Address
4259 OLD POST RD P.O. BOX 1727 CHARLESTOWN, RI 02813
Mailing Phone
(401) 364-6630
Mailing Fax
(401) 364-9910
Is Sole Proprietor?
Yes
Enumeration Date
12-02-2008
Last Update Date
12-02-2008
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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

Veterinarian

Taxonomy Code
174M00000X
Type
Other Service Providers
License No.
DVM00315
License State
RI
Taxonomy Description
A doctor of veterinary medicine, trained and authorized to practice veterinarian medicine and surgery.

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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 1497990675, we treat the final digit (5) 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 5).

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
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
9
Unchanged
Pos 7
0
Doubled → 0
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
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 9 → 18 → 9 0 → 0 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 1 + 8 + 9 + 0 + 6 + 1 + 4 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1497990675.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Physical Therapist
4259 OLD POST RD
CHARLESTOWN, RI 02813
Physical Medicine & Rehabilitation
4259 OLD POST RD
CHARLESTOWN, RI 02813

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497990675, enumerated as an "individual" on December 02, 2008.

The provider is located at 4259 OLD POST RD CHARLESTOWN, RI 02813 and the phone number is (401) 364-6630.

Veterinarian with taxonomy code 174M00000X.