ALEC FRANK KROSSER MD
NPI 1306308648
Surgery - Vascular Surgery in Danbury, CT
NPI Status: Active since April 04, 2019
Contact Information
41 GERMANTOWN RD
DANBURY, CT
ZIP 06810
Phone: (203) 794-5680
- Individual
- Male
- Surgery
- Vascular Surgery
About ALEC KROSSER
This page provides the complete NPI Profile along with additional information for Alec Krosser, a provider established in Danbury, Connecticut with a medical specialization in Surgery, focusing in vascular surgery . The healthcare provider is registered in the NPI registry with number 1306308648 assigned on April 2019. The practitioner's primary taxonomy code is 2086S0129X with license number 84606 (CT). The provider is registered as an individual and his NPI record was last updated April 2026.
- NPI
- 1306308648
- Provider Name
- ALEC FRANK KROSSER MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 41 GERMANTOWN RD DANBURY, CT 06810
- Location Phone
- (203) 794-5680
- Mailing Address
- 41 GERMANTOWN RD DANBURY, CT 06810
- Mailing Phone
- (203) 794-5680
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-04-2019
- Last Update Date
- 04-29-2026
- 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
Surgery Vascular Surgery
- Taxonomy Code
- 2086S0129X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 84606
- License State
- CT
- Taxonomy Description
- A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
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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 1306308648, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).
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 62 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.
DANBURY, CT 06810
DANBURY, CT 06810
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1306308648, enumerated as an "individual" on April 04, 2019.
The provider is located at 41 GERMANTOWN RD DANBURY, CT 06810 and the phone number is (203) 794-5680.
Surgery with taxonomy code 2086S0129X and a focus in Vascular Surgery.
