DR. DIEGO ANDRES MONASTERIO OLIVER MD
NPI 1588223671
Surgery - Vascular Surgery in Tucson, AZ

NPI Status: Active since June 11, 2019

Contact Information

1625 N CAMPBELL AVE
TUCSON, AZ
ZIP 85719
Phone: (520) 694-0111

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

Individual
Male
Surgery
Vascular Surgery

About DIEGO MONASTERIO OLIVER

This page provides the complete NPI Profile along with additional information for Diego Monasterio Oliver, a provider established in Tucson, Arizona with a medical specialization in Surgery, focusing in vascular surgery . The healthcare provider is registered in the NPI registry with number 1588223671 assigned on June 2019. The practitioner's primary taxonomy code is 2086S0129X with license number 1588223671 (AZ). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI: 1588223671
Provider Name: DR. DIEGO ANDRES MONASTERIO OLIVER MD
Gender: Male
Entity Type: Individual
Location Address: 1625 N CAMPBELL AVE TUCSON, AZ 85719
Location Phone: (520) 694-0111
Mailing Address: PO BOX 245072 TUCSON, AZ 85724
Is Sole Proprietor?: Yes
Enumeration Date: 06-11-2019
Last Update Date: 02-10-2026
Code Navigator

Location Map

Secondary Locations

3123 Membrillo Street, Urb. El Monte
Ponce, PR 00716
(787) 381-6612
388 Zona Ind Reparada 2
Ponce, PR 00716
(787) 848-8203

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: Surgery Vascular Surgery
Taxonomy Code: 2086S0129X
Type: Allopathic & Osteopathic Physicians
License No.: 1588223671
License State: AZ
Taxonomy Description: A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

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	390200000X	Student, Health Care	Student in an Organized Health Care Education/Training Program

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 1588223671, 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 → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 6

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

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 8 → 16 → 7 2 → 4 3 → 6 7 → 14 → 5