LENNART CHOO MD
NPI 1689962425
Internal Medicine - Gastroenterology in Winston Salem, NC

NPI Status: Active since July 14, 2011

Contact Information

MEDICAL CENTER BLVD
WINSTON SALEM, NC
ZIP 27157
Phone: (336) 716-2255

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Internal Medicine
Gastroenterology

About LENNART CHOO

This page provides the complete NPI Profile along with additional information for Lennart Choo, an internist established in Winston Salem, North Carolina with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1689962425 assigned on July 2011. The practitioner's primary taxonomy code is 207RG0100X with license number 2011-01125 (NC). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI: 1689962425
Provider Name: LENNART CHOO MD
Gender: Male
Entity Type: Individual
Location Address: MEDICAL CENTER BLVD WINSTON SALEM, NC 27157
Location Phone: (336) 716-2255
Mailing Address: PO BOX 344 WINSTON SALEM, NC 27102
Mailing Phone: (336) 716-2255
Is Sole Proprietor?: No
Enumeration Date: 07-14-2011
Last Update Date: 07-14-2011
Code Navigator

An internist like Lennart Choo is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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: Internal Medicine Gastroenterology
Taxonomy Code: 207RG0100X
Type: Allopathic & Osteopathic Physicians
License No.: 2011-01125
License State: NC
Taxonomy Description: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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 1689962425, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 4

Pos 8

Unchanged

Pos 9

Doubled → 4

Check

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 8 → 16 → 7 9 → 18 → 9 2 → 4 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 6 + 9 + 1 + 8 + 6 + 4 + 4 + 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 1689962425.