PREBEN BJERREGAARD MD
NPI 1043237019
Internal Medicine - Cardiovascular Disease in Saint Louis, MO
NPI Status: Active since July 16, 2006
Contact Information
3660 VISTA
SAINT LOUIS, MO
ZIP 63110
Phone: (314) 577-8890
Fax: (314) 268-5172
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Male
- Internal Medicine
- Cardiovascular Disease
About PREBEN BJERREGAARD
This page provides the complete NPI Profile along with additional information for Preben Bjerregaard, an internist established in Saint Louis, Missouri with a medical specialization in Internal Medicine, focusing in cardiovascular disease . The healthcare provider is registered in the NPI registry with number 1043237019 assigned on July 2006. The practitioner's primary taxonomy code is 207RC0000X with license number 36935 (MO). The provider is registered as an individual and his NPI record was last updated June 2026.
- NPI
- 1043237019
- Provider Name
- PREBEN BJERREGAARD MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3660 VISTA SAINT LOUIS, MO 63110
- Location Phone
- (314) 577-8890
- Location Fax
- (314) 268-5172
- Mailing Address
- 3691 RUTGER AVE PROVIDER ENROLLMENT SAINT LOUIS, MO 63110
- Mailing Phone
- (314) 977-4440
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-16-2006
- Last Update Date
- 06-07-2026
- Code Navigator
An internist like Preben Bjerregaard is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
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
Internal Medicine Cardiovascular Disease
- Taxonomy Code
- 207RC0000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 36935
- License State
- MO
- Taxonomy Description
- An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
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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 1043237019, 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 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 51 is 60. 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.
ST LOUIS, MO 63110
ST. LOUIS, MO 63110
ST LOUIS, MO 63110
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1043237019, enumerated as an "individual" on July 16, 2006.
The provider is located at 3660 VISTA SAINT LOUIS, MO 63110 and the phone number is (314) 577-8890.
Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.
