DR. STEPHEN W. CHANG M.D.
NPI 1578721593
Radiology - Diagnostic Radiology in Vienna, VA
NPI Status: Active since May 27, 2008
Contact Information
1980 GALLOWS RD
VIENNA, VA
ZIP 22182
Phone: (703) 356-9899
- Individual
- Male
- Radiology
- Diagnostic Radiology
About STEPHEN CHANG
This page provides the complete NPI Profile along with additional information for Stephen Chang, a provider established in Vienna, Virginia with a medical specialization in Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1578721593 assigned on May 2008. The practitioner's primary taxonomy code is 2085R0202X with license number 0101242425 (VA). The provider is registered as an individual and his NPI record was last updated 13 years ago.
- NPI
- 1578721593
- Provider Name
- DR. STEPHEN W. CHANG M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1980 GALLOWS RD VIENNA, VA 22182
- Location Phone
- (703) 356-9899
- Mailing Address
- 1980 GALLOWS RD VIENNA, VA 22182
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-27-2008
- Last Update Date
- 10-17-2013
- Code Navigator
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
Radiology Diagnostic Radiology
- Taxonomy Code
- 2085R0202X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 0101242425
- License State
- VA
- Taxonomy Description
- A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
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 | 174400000X | Other Service Providers | Specialist | 246121 (NY) |
| 2 | 2085R0202X | Allopathic & Osteopathic Physicians | Radiology | 246121 (NY) |
| 3 | 2085R0202X | Allopathic & Osteopathic Physicians | Radiology | 25MA09064100 (NJ) |
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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 1578721593, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 67 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 14 providers are registered at the same or a nearby location.
TYSONS CORNER, VA 22182
TYSONS, VA 22182
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1578721593, enumerated as an "individual" on May 27, 2008.
The provider is located at 1980 GALLOWS RD VIENNA, VA 22182 and the phone number is (703) 356-9899.
Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.
