ZAKY FADI EL-NACHEF
NPI 1346187234
Dentist - Dental Public Health in Philadelphia, PA

NPI Status: Active since April 30, 2026

Contact Information

240 S 40TH ST # 3
PHILADELPHIA, PA
ZIP 19104
Phone: (215) 898-8965

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

Individual
Male
Dentist
Dental Public Health

About ZAKY EL-NACHEF

This page provides the complete NPI Profile along with additional information for Zaky El-nachef, a provider established in Philadelphia, Pennsylvania with a medical specialization in Dentist, focusing in dental public health . The healthcare provider is registered in the NPI registry with number 1346187234 assigned on April 2026. The practitioner's primary taxonomy code is 1223D0001X with license number 122300000X (MI). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI: 1346187234
Provider Name: ZAKY FADI EL-NACHEF
Gender: Male
Entity Type: Individual
Location Address: 240 S 40TH ST # 3 PHILADELPHIA, PA 19104
Location Phone: (215) 898-8965
Mailing Address: 1035 N OLD WOODWARD AVE BIRMINGHAM, MI 48009
Mailing Phone: (989) 859-0859
Is Sole Proprietor?: No
Enumeration Date: 04-30-2026
Last Update Date: 04-30-2026
Code Navigator

A dentist like Zaky El-nachef is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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: Dentist Dental Public Health
Taxonomy Code: 1223D0001X
Type: Dental Providers
License No.: 122300000X
License State: MI
Taxonomy Description: The science and art of preventing and controlling dental diseases and promoting dental health through organized community efforts. It is that form of dental practice that serves the community as a patient rather than the individual. It is concerned with the dental health education of the public, with applied dental research, and with the administration of group dental care programs as well as the prevention and control of dental diseases on a community basis.

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 1346187234, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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 → 8

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 6

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 4 → 8 1 → 2 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 8 + 6 + 2 + 8 + 1 + 4 + 2 + 6 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1346187234.