MR. ALEXANDER MARK
NPI 1689947962
in Baltimore, MD
NPI Status: Active since February 16, 2012
Contact Information
600 N WOLFE ST
BLALOCK 618
BALTIMORE, MD
ZIP 21287
Phone: (410) 955-2698
- Individual
- Male
About ALEXANDER MARK
This page provides the complete NPI Profile along with additional information for Alexander Mark, a provider established in Baltimore, Maryland with a medical specialization in . The healthcare provider is registered in the NPI registry with number 1689947962 assigned on February 2012. The practitioner's primary taxonomy code is 246ZS0400X. The provider is registered as an individual and his NPI record was last updated 14 years ago.
- NPI
- 1689947962
- Provider Name
- MR. ALEXANDER MARK
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 600 N WOLFE ST BLALOCK 618 BALTIMORE, MD 21287
- Location Phone
- (410) 955-2698
- Mailing Address
- 16 WOOD RAVEN CT PARKVILLE, MD 21234
- Mailing Phone
- (443) 850-8790
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 02-16-2012
- Last Update Date
- 02-16-2012
- 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
- Taxonomy Code
- 246ZS0400X
- Type
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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 1689947962, we treat the final digit (2) 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 78. The final step is to find the difference between that total and the next multiple of ten (80 - 78 = 2).
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 78 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
BALTIMORE, MD 21287
BALTIMORE, MD 21287
BALTIMORE, MD 21287
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1689947962, enumerated as an "individual" on February 16, 2012.
The provider is located at 600 N WOLFE ST BLALOCK 618 BALTIMORE, MD 21287 and the phone number is (410) 955-2698.
with taxonomy code 246ZS0400X.
