DR. LYNDA LOUDON SHEPPARD DVM
NPI 1972489201
Emergency Medicine in Setauket, NY

NPI Status: Active since August 13, 2025

Contact Information

11 CRANE NECK RD # 11733
SETAUKET, NY
ZIP 11733
Phone: (631) 546-8749

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  • Individual
  • Female
  • Emergency Medicine

About LYNDA SHEPPARD

This page provides the complete NPI Profile along with additional information for Lynda Sheppard, a provider established in Setauket, New York with a medical specialization in Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1972489201 assigned on August 2025. The practitioner's primary taxonomy code is 207P00000X with license number 009414 (NY). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1972489201
Provider Name
DR. LYNDA LOUDON SHEPPARD DVM
Gender
Female
Entity Type
Individual
Location Address
11 CRANE NECK RD # 11733 SETAUKET, NY 11733
Location Phone
(631) 546-8749
Mailing Address
11 CRANE NECK RD SETAUKET, NY 11733
Is Sole Proprietor?
No
Enumeration Date
08-13-2025
Last Update Date
08-13-2025
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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

Emergency Medicine

Taxonomy Code
207P00000X
Type
Allopathic & Osteopathic Physicians
License No.
009414
License State
NY
Taxonomy Description
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

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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 1972489201, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
9
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
2
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
0
Doubled → 0
Check
1
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 7 → 14 → 5 4 → 8 9 → 18 → 9 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 4 + 2 + 8 + 8 + 1 + 8 + 2 + 0 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1972489201.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1972489201, enumerated as an "individual" on August 13, 2025.

The provider is located at 11 CRANE NECK RD # 11733 SETAUKET, NY 11733 and the phone number is (631) 546-8749.

Emergency Medicine with taxonomy code 207P00000X.