DR. ERNIE DIAZ RIVERA MD
NPI 1992330831
Internal Medicine - Hematology & Oncology in San Juan, PR

NPI Status: Active since March 11, 2020

Contact Information

PO BOX 365067
SAN JUAN, PR
ZIP 00936
Phone: (787) 754-0101

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Internal Medicine
Hematology & Oncology

About ERNIE DIAZ RIVERA

This page provides the complete NPI Profile along with additional information for Ernie Diaz Rivera, an internist established in San Juan, Puerto Rico with a medical specialization in Internal Medicine, focusing in hematology & oncology . The healthcare provider is registered in the NPI registry with number 1992330831 assigned on March 2020. The practitioner's primary taxonomy code is 207RH0003X with license number 23205 (PR). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI: 1992330831
Provider Name: DR. ERNIE DIAZ RIVERA MD
Gender: Male
Entity Type: Individual
Location Address: PO BOX 365067 SAN JUAN, PR 00936
Location Phone: (787) 754-0101
Mailing Address: PO BOX 365067 SAN JUAN, PR 00936
Mailing Phone: (787) 754-0101
Is Sole Proprietor?: Yes
Enumeration Date: 03-11-2020
Last Update Date: 04-16-2024
Code Navigator

An internist like Ernie Diaz Rivera 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 Hematology & Oncology
Taxonomy Code: 207RH0003X
Type: Allopathic & Osteopathic Physicians
License No.: 23205
License State: PR
Taxonomy Description: An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

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 1992330831, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 6

Check

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 9 → 18 → 9 3 → 6 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 8 + 2 + 6 + 3 + 0 + 8 + 6 + 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 1992330831.