DR. HANGXIU XU M.D., PH.D.
NPI 1780989335
Optometrist - Pediatrics in Ellicott City, MD
NPI Status: Active since January 12, 2011
Contact Information
3129 NORMANDY WOODS DR APT D
ELLICOTT CITY, MD
ZIP 21043
Phone: (443) 285-9438
- Individual
- Male
- Optometrist
- Pediatrics
About HANGXIU XU
This page provides the complete NPI Profile along with additional information for Hangxiu Xu, a provider established in Ellicott City, Maryland with a medical specialization in Optometrist, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1780989335 assigned on January 2011. The practitioner's primary taxonomy code is 152WP0200X with license number 99999 (MD). The provider is registered as an individual and his NPI record was last updated 15 years ago.
- NPI
- 1780989335
- Provider Name
- DR. HANGXIU XU M.D., PH.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3129 NORMANDY WOODS DR APT D ELLICOTT CITY, MD 21043
- Location Phone
- (443) 285-9438
- Mailing Address
- 3129 NORMANDY WOODS DR APT D ELLICOTT CITY, MD 21043
- Mailing Phone
- (443) 285-9438
- Is Sole Proprietor?
- No
- Enumeration Date
- 01-12-2011
- Last Update Date
- 01-12-2011
- 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
Optometrist Pediatrics
- Taxonomy Code
- 152WP0200X
- Type
- Eye and Vision Services Providers
- License No.
- 99999
- License State
- MD
- Taxonomy Description
- Optometrists who work in Pediatrics are concerned with the prevention, development, diagnosis, and treatment of visual problems in children.
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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 1780989335, we treat the final digit (5) 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 5).
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 75 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1780989335, enumerated as an "individual" on January 12, 2011.
The provider is located at 3129 NORMANDY WOODS DR APT D ELLICOTT CITY, MD 21043 and the phone number is (443) 285-9438.
Optometrist with taxonomy code 152WP0200X and a focus in Pediatrics.
