CHARLES DAN DEMARQUE M.D.
NPI 1659315828
Emergency Medicine in Irving, TX

NPI Status: Active since June 16, 2006

Contact Information

2940 N O CONNOR RD STE 129
IRVING, TX
ZIP 75062
Phone: (817) 308-8477

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  • Individual
  • Male
  • Emergency Medicine

About CHARLES DEMARQUE

This page provides the complete NPI Profile along with additional information for Charles Demarque, a provider established in Irving, Texas with a medical specialization in Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1659315828 assigned on June 2006. The practitioner's primary taxonomy code is 207P00000X with license number MD27491 (TN). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI
1659315828
Provider Name
CHARLES DAN DEMARQUE M.D.
Gender
Male
Entity Type
Individual
Location Address
2940 N O CONNOR RD STE 129 IRVING, TX 75062
Location Phone
(817) 308-8477
Mailing Address
2940 N O CONNOR RD STE 129 IRVING, TX 75062
Mailing Phone
(817) 308-8477
Is Sole Proprietor?
No
Enumeration Date
06-16-2006
Last Update Date
09-11-2019
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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.
MD27491
License State
TN
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207P00000XAllopathic & Osteopathic Physicians

Emergency Medicine

J1969 (TX)

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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 1659315828, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
3
Doubled → 6
Pos 6
1
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
2
Doubled → 4
Check
8
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 3 → 6 5 → 10 → 1 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 + 0 + 9 + 6 + 1 + 1 + 0 + 8 + 4 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1659315828.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Clinic/Center
2940 N O CONNOR RD STE 129
IRVING, TX 75062

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659315828, enumerated as an "individual" on June 16, 2006.

The provider is located at 2940 N O CONNOR RD STE 129 IRVING, TX 75062 and the phone number is (817) 308-8477.

Emergency Medicine with taxonomy code 207P00000X.