DAVID LOEB MD
NPI 1891784773
Internal Medicine - Gastroenterology in Jacksonville, FL
NPI Status: Active since October 13, 2005
Contact Information
4500 SAN PABLO RD S
JACKSONVILLE, FL
ZIP 32224
Phone: (904) 953-2000
- Individual
- Male
- Internal Medicine
- Gastroenterology
About DAVID LOEB
This page provides the complete NPI Profile along with additional information for David Loeb, an internist established in Jacksonville, Florida with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1891784773 assigned on October 2005. The practitioner's primary taxonomy code is 207RG0100X with license number 23695 (AZ). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1891784773
- Provider Name
- DAVID LOEB MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 4500 SAN PABLO RD S JACKSONVILLE, FL 32224
- Location Phone
- (904) 953-2000
- Mailing Address
- 13400 E SHEA BLVD SCOTTSDALE, AZ 85259
- Mailing Phone
- (480) 301-8000
- Is Sole Proprietor?
- No
- Enumeration Date
- 10-13-2005
- Last Update Date
- 10-10-2025
- Code Navigator
An internist like David Loeb 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
Secondary Locations
- 13400 E Shea Blvd
Scottsdale, AZ 85259
(480) 301-8000 - 4500 San Pablo Rd S
Jacksonville, FL 32224
(904) 953-2000
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.
- 23695
- License State
- AZ
- 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.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207RG0100X | Allopathic & Osteopathic Physicians | Internal Medicine | H0572 (TX) |
| 2 | 207RG0100X | Allopathic & Osteopathic Physicians | Internal Medicine | 32275 (MN) |
| 3 | 207RG0100X | Allopathic & Osteopathic Physicians | Internal Medicine | ME59255 (FL) |
| 4 | 207RG0100X | Allopathic & Osteopathic Physicians | Internal Medicine | MD.07239R (LA) |
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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 1891784773, we treat the final digit (3) 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 3).
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 77 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.
JACKSONVILLE, FL 32224
JACKSONVILLE, FL 32224
JACKSONVILLE, FL 32224
JACKSONVILLE, FL 32224
JACKSONVILLE, FL 32224
JACKSONVILLE, FL 32224
JACKSONVILLE, FL 32224
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1891784773, enumerated as an "individual" on October 13, 2005.
The provider is located at 4500 SAN PABLO RD S JACKSONVILLE, FL 32224 and the phone number is (904) 953-2000.
Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.
