DR. ALEXANDER JAMES DEWEERD MD
NPI 1245922541
Internal Medicine - Gastroenterology in Tampa, FL

NPI Status: Active since May 24, 2023

Contact Information

1 TAMPA GENERAL CIR
TAMPA, FL
ZIP 33606
Phone: (727) 735-4390

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  • Individual
  • Male
  • Internal Medicine
  • Gastroenterology

About ALEXANDER DEWEERD

This page provides the complete NPI Profile along with additional information for Alexander Deweerd, an internist established in Tampa, Florida with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1245922541 assigned on May 2023. The practitioner's primary taxonomy code is 207RG0100X with license number TRN45386 (FL). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1245922541
Provider Name
DR. ALEXANDER JAMES DEWEERD MD
Gender
Male
Entity Type
Individual
Location Address
1 TAMPA GENERAL CIR TAMPA, FL 33606
Location Phone
(727) 735-4390
Mailing Address
1 TAMPA GENERAL CIR TAMPA, FL 33606
Is Sole Proprietor?
Yes
Enumeration Date
05-24-2023
Last Update Date
06-25-2026
Code Navigator

An internist like Alexander Deweerd 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 Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
License No.
TRN45386
License State
FL
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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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 1245922541, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
4
Doubled → 8
Pos 4
5
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
Check
1
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 4 → 8 9 → 18 → 9 2 → 4 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 8 + 5 + 1 + 8 + 2 + 4 + 5 + 8 + 24 = 69

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1245922541.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Anesthesiology
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Anesthesiology
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Radiology (Diagnostic Radiology)
1 TAMPA GENERAL CIR, RADIOLOGY ASSOC OF TAMPA AT TAMPA GENERAL HOSPITAL
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Physician Assistant (Medical)
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Anesthesiology
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Anesthesiology
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Anesthesiology
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Nurse Practitioner
1 TAMPA GENERAL CIR, ROOM F145
TAMPA, FL 33606
Nurse Practitioner
1 TAMPA GENERAL CIR, TGH, RADIOLOGY DEPT
TAMPA, FL 33606

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1245922541, enumerated as an "individual" on May 24, 2023.

The provider is located at 1 TAMPA GENERAL CIR TAMPA, FL 33606 and the phone number is (727) 735-4390.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.