DAVID W FUNG
NPI 1215613450
Dentist - General Practice in Brooklyn, NY

NPI Status: Active since June 22, 2023

Contact Information

800 POLY PL
BROOKLYN, NY
ZIP 11209
Phone: (212) 686-7500
Fax: (212) 951-3378

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

Individual
Male
Dentist
General Practice

About DAVID FUNG

This page provides the complete NPI Profile along with additional information for David Fung, a provider established in Brooklyn, New York with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1215613450 assigned on June 2023. The practitioner's primary taxonomy code is 1223G0001X with license number 064774 (NY). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI: 1215613450
Provider Name: DAVID W FUNG
Gender: Male
Entity Type: Individual
Location Address: 800 POLY PL BROOKLYN, NY 11209
Location Phone: (212) 686-7500
Location Fax: (212) 951-3378
Mailing Address: 800 POLY PL BROOKLYN, NY 11209
Mailing Phone: (212) 686-7500
Mailing Fax: (212) 951-3378
Is Sole Proprietor?: No
Enumeration Date: 06-22-2023
Last Update Date: 02-19-2026
Code Navigator

A dentist like David Fung 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

Secondary Locations

1456 Fulton St
Brooklyn, NY 11216
(718) 636-4500

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 General Practice
Taxonomy Code: 1223G0001X
Type: Dental Providers
License No.: 064774
License State: NY
Taxonomy Description: A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

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)
1	390200000X	Student, Health Care	Student in an Organized Health Care Education/Training Program

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 1215613450, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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 → 2

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 6

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

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 1 → 2 6 → 12 → 3 3 → 6 5 → 10 → 1