DR. HARVEY SHAFFER DVM
NPI 1851521173
Veterinarian in Longmont, CO

NPI Status: Active since July 21, 2009

Contact Information

20 3RD AVE
LONGMONT, CO
ZIP 80501
Phone: (303) 651-3039
Fax: (303) 651-7691

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  • Individual
  • Male
  • Veterinarian

About HARVEY SHAFFER

This page provides the complete NPI Profile along with additional information for Harvey Shaffer, a provider established in Longmont, Colorado with a medical specialization in Veterinarian. The healthcare provider is registered in the NPI registry with number 1851521173 assigned on July 2009. The practitioner's primary taxonomy code is 174M00000X with license number 2633 (CO). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1851521173
Provider Name
DR. HARVEY SHAFFER DVM
Gender
Male
Entity Type
Individual
Location Address
20 3RD AVE LONGMONT, CO 80501
Location Phone
(303) 651-3039
Location Fax
(303) 651-7691
Mailing Address
20 3RD AVE LONGMONT, CO 80501
Mailing Phone
(303) 651-3039
Mailing Fax
(303) 651-7691
Is Sole Proprietor?
No
Enumeration Date
07-21-2009
Last Update Date
07-21-2009
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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.
2633
License State
CO
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 1851521173, 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
2
Unchanged
Pos 7
1
Doubled → 2
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 5 → 10 → 1 5 → 10 → 1 1 → 2 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 1 + 0 + 2 + 2 + 1 + 1 + 4 + 24 = 47

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

The next multiple of ten after 47 is 50. The difference is the calculated check digit.

50 - 47 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1851521173.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851521173, enumerated as an "individual" on July 21, 2009.

The provider is located at 20 3RD AVE LONGMONT, CO 80501 and the phone number is (303) 651-3039.

Veterinarian with taxonomy code 174M00000X.