DR. ARNALDO JOSE SANTIAGO MD
NPI 1891657045
Preventive Medicine - Medical Toxicology in Salinas, PR
NPI Status: Active since November 25, 2025
Contact Information
PO BOX 2344
SALINAS, PR
ZIP 00751
Phone: (939) 940-5684
- Individual
- Male
- Preventive Medicine
- Medical Toxicology
About ARNALDO SANTIAGO
This page provides the complete NPI Profile along with additional information for Arnaldo Santiago, a provider established in Salinas, Puerto Rico with a medical specialization in Preventive Medicine, focusing in medical toxicology . The healthcare provider is registered in the NPI registry with number 1891657045 assigned on November 2025. The practitioner's primary taxonomy code is 2083T0002X with license number 17352I (PR). The provider is registered as an individual and his NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.
- NPI
- 1891657045
- Provider Name
- DR. ARNALDO JOSE SANTIAGO MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- PO BOX 2344 SALINAS, PR 00751
- Location Phone
- (939) 940-5684
- Mailing Address
- PO BOX 2344 SALINAS, PR 00751
- Mailing Phone
- (939) 940-5684
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 11-25-2025
- Last Update Date
- 11-25-2025
- 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
Preventive Medicine Medical Toxicology
- Taxonomy Code
- 2083T0002X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 17352I
- License State
- PR
- Taxonomy Description
- Medical toxicologists are physicians who specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical toxicologists care for people in clinical, academic, governmental and public health settings, and provide poison control center leadership. Important areas of medical toxicology include acute drug poisoning, adverse drug events, drug abuse, addiction and withdrawal, chemicals and hazardous materials, terrorism preparedness, venomous bites and stings, and environmental and workplace exposures.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
Reviews for DR. ARNALDO JOSE SANTIAGO MD
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1891657045, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).
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 65 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1891657045, enumerated as an "individual" on November 25, 2025.
The provider is located at PO BOX 2344 SALINAS, PR 00751 and the phone number is (939) 940-5684.
Preventive Medicine with taxonomy code 2083T0002X and a focus in Medical Toxicology.
