YING-SEK CHAN MD
NPI 1992739809
Radiology - Diagnostic Ultrasound in Southbury, CT
NPI Status: Active since July 10, 2006
Contact Information
385 MAIN ST S
UNION SQUARE
SOUTHBURY, CT
ZIP 06488
Phone: (203) 264-7999
Fax: (203) 264-7477
- Individual
- Male
- Radiology
- Diagnostic Ultrasound
About YING-SEK CHAN
This page provides the complete NPI Profile along with additional information for Ying-sek Chan, a provider established in Southbury, Connecticut with a medical specialization in Radiology, focusing in diagnostic ultrasound . The healthcare provider is registered in the NPI registry with number 1992739809 assigned on July 2006. The practitioner's primary taxonomy code is 2085U0001X with license number 017889 (CT). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1992739809
- Provider Name
- YING-SEK CHAN MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 385 MAIN ST S UNION SQUARE SOUTHBURY, CT 06488
- Location Phone
- (203) 264-7999
- Location Fax
- (203) 264-7477
- Mailing Address
- 385 MAIN ST S UNION SQUARE BLDG #1 SOUTHBURY, CT 06488
- Mailing Phone
- (203) 264-7999
- Mailing Fax
- (203) 264-7477
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-10-2006
- Last Update Date
- 09-11-2025
- 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 Ultrasound
- Taxonomy Code
- 2085U0001X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 017889
- License State
- CT
- Taxonomy Description
- A Radiology doctor of Osteopathy that specializes in Diagnostic Ultrasound.
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 | 2085N0904X | Allopathic & Osteopathic Physicians | Radiology | 017889 (CT) |
| 2 | 2085R0202X | Allopathic & Osteopathic Physicians | Radiology | 017789 (CT) |
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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 1992739809, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).
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 71 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 18 providers are registered at the same or a nearby location.
SOUTHBURY, CT 06488
SOUTHBURY, CT 06488
SOUTHBURY, CT 06488
SOUTHBURY, CT 06488
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1992739809, enumerated as an "individual" on July 10, 2006.
The provider is located at 385 MAIN ST S UNION SQUARE SOUTHBURY, CT 06488 and the phone number is (203) 264-7999.
Radiology with taxonomy code 2085U0001X and a focus in Diagnostic Ultrasound.
