DR. ROGER DOWNEY ROSSEN MD
NPI 1427072297
Allergy & Immunology - Allergy in Houston, TX
NPI Status: Active since July 26, 2006
Contact Information
2002 HOLCOMBE BLVD
BLDG 109, ROOM 228 HOUSTON VA MEDICAL CENTER
HOUSTON, TX
ZIP 77030
Phone: (713) 794-7772
- Individual
- Male
- Allergy & Immunology
- Allergy
About ROGER ROSSEN
This page provides the complete NPI Profile along with additional information for Roger Rossen, a provider established in Houston, Texas with a medical specialization in Allergy & Immunology, focusing in allergy . The healthcare provider is registered in the NPI registry with number 1427072297 assigned on July 2006. The practitioner's primary taxonomy code is 207KA0200X with license number D4684 (TX). The provider is registered as an individual and his NPI record was last updated 17 years ago.
- NPI
- 1427072297
- Provider Name
- DR. ROGER DOWNEY ROSSEN MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2002 HOLCOMBE BLVD BLDG 109, ROOM 228 HOUSTON VA MEDICAL CENTER HOUSTON, TX 77030
- Location Phone
- (713) 794-7772
- Mailing Address
- 2002 HOLCOMBE BLVD BLDG 109, ROOM 228 HOUSTON VA MEDICAL CENTER HOUSTON, TX 77030
- Mailing Phone
- (713) 794-7772
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-26-2006
- Last Update Date
- 06-22-2009
- 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
Allergy & Immunology Allergy
- Taxonomy Code
- 207KA0200X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- D4684
- License State
- TX
- Taxonomy Description
- A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
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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 1427072297, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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 63 is 70. 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.
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1427072297, enumerated as an "individual" on July 26, 2006.
The provider is located at 2002 HOLCOMBE BLVD BLDG 109, ROOM 228 HOUSTON VA MEDICAL CENTER HOUSTON, TX 77030 and the phone number is (713) 794-7772.
Allergy & Immunology with taxonomy code 207KA0200X and a focus in Allergy.
