DR. DIEGO JOSE DIAZ MD
NPI 1598396129
Internal Medicine in Bayamon, PR

NPI Status: Active since February 02, 2020

Contact Information

100 PASEO SAN PABLO
EDIF CADILLA OFICINA 405
BAYAMON, PR
ZIP 00961
Phone: (787) 269-5655
Fax: (787) 979-1179

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  • Individual
  • Male
  • Internal Medicine

About DIEGO DIAZ

This page provides the complete NPI Profile along with additional information for Diego Diaz, an internist established in Bayamon, Puerto Rico with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1598396129 assigned on February 2020. The practitioner's primary taxonomy code is 207R00000X with license number 23690 (PR). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1598396129
Provider Name
DR. DIEGO JOSE DIAZ MD
Gender
Male
Entity Type
Individual
Location Address
100 PASEO SAN PABLO EDIF CADILLA OFICINA 405 BAYAMON, PR 00961
Location Phone
(787) 269-5655
Location Fax
(787) 979-1179
Mailing Address
100 PASEO SAN PABLO EDIF CADILLA OFICINA 405 BAYAMON, PR 00961
Mailing Phone
(787) 269-5655
Mailing Fax
(787) 979-1179
Is Sole Proprietor?
Yes
Enumeration Date
02-02-2020
Last Update Date
05-27-2026
Code Navigator

An internist like Diego Diaz 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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
23690
License State
PR
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive 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 1598396129, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
8
Unchanged
Pos 5
3
Doubled → 6
Pos 6
9
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
1
Unchanged
Pos 9
2
Doubled → 4
Check
9
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 6 → 12 → 3 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 8 + 8 + 6 + 9 + 1 + 2 + 1 + 4 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1598396129.

Other Providers at the Same Location


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

Internal Medicine (Cardiovascular Disease)
100 PASEO SAN PABLO, SUITE 401, ARTURO CADILLA VINAS BUILDING
BAYAMON, PR 00961
Obstetrics & Gynecology (Obstetrics)
100 PASEO SAN PABLO, EDIF DR. ARTURO CADILLA SUITE 408
BAYAMON, PR 00961
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
100 PASEO SAN PABLO, CADILLA BLDG.,SUITE 203
BAYAMON, PR 00961
Internal Medicine
100 PASEO SAN PABLO, HOSPITAL SAN PABLO EDIFICIO ARTURO CADILLA 204
BAYAMON, PR 00961
Ophthalmology
100 PASEO SAN PABLO, SUITE 402 DR. ARTURO CADILLA BLDG.
BAYAMON, PR 00961
Surgery
100 PASEO SAN PABLO, DR. ARTURO CADILLA BUILDING SUITE 205
BAYAMON, PR 00961
Internal Medicine (Gastroenterology)
100 PASEO SAN PABLO, SUITE 104
BAYAMON, PR 00961
Orthopaedic Surgery (Foot and Ankle Surgery)
100 PASEO SAN PABLO, A CADILLA BLG STE 406
BAYAMON, PR 00961
Psychologist (Clinical)
100 PASEO SAN PABLO, 509
BAYAMON, PR 00961
Internal Medicine (Cardiovascular Disease)
100 PASEO SAN PABLO, DR. ARTURO CADILLA BUILDING, SUITE 202
BAYAMON, PR 00961
Pediatrics (Pediatric Gastroenterology)
100 PASEO SAN PABLO, CADILLA BUILDING SUITE 203
BAYAMON, PR 00961
Surgery
100 PASEO SAN PABLO, EDIF. DR. ARTURO CADILLA, SUITE 201
BAYAMON, PR 00961
Internal Medicine (Nephrology)
100 PASEO SAN PABLO, EDIF. DR. ARTURO CADILLA, SUITE 201
BAYAMON, PR 00961
Clinic/Center (Oncology)
100 PASEO SAN PABLO, ARTURO CADILLA SUITE 511
BAYAMON, PR 00961
Psychiatry & Neurology (Neurology)
100 PASEO SAN PABLO, EDIF. ARTURO CADILLA SUITE 406
BAYAMON, PR 00961
Radiology (Diagnostic Radiology)
100 PASEO SAN PABLO, SUITE 208
BAYAMON, PR 00961
Family Medicine
100 PASEO SAN PABLO, SUITE 405
BAYAMON, PR 00961
Audiologist-Hearing Aid Fitter
100 PASEO SAN PABLO, EDIF ARTURO CADILLA STE 412
BAYAMON, PR 00961
Specialist
100 PASEO SAN PABLO, EDIFICIO ARTURO CADILLA SUITE 206
BAYAMON, PR 00961
Clinic/Center (Radiology)
100 PASEO SAN PABLO, EDIFICIO ARTURO CADILLA (SUITE 407)
BAYAMON, PR 00961

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1598396129, enumerated as an "individual" on February 02, 2020.

The provider is located at 100 PASEO SAN PABLO EDIF CADILLA OFICINA 405 BAYAMON, PR 00961 and the phone number is (787) 269-5655.

Internal Medicine with taxonomy code 207R00000X.