MATEUS DE OLIVEIRA TAVEIRA MD, PHD
NPI 1144909789
Radiology - Diagnostic Radiology in San Francisco, CA

NPI Status: Active since July 12, 2023

Contact Information

505 PARNASSUS AVE FL 3
SAN FRANCISCO, CA
ZIP 94143
Phone: (415) 476-1537
Fax: (415) 476-0616

Recently Updated NPI Information
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.

Table of Contents

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

Individual
Male
Radiology
Diagnostic Radiology

About MATEUS DE OLIVEIRA TAVEIRA

This page provides the complete NPI Profile along with additional information for Mateus De Oliveira Taveira, a provider established in San Francisco, California with a medical specialization in Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1144909789 assigned on July 2023. The practitioner's primary taxonomy code is 2085R0202X with license number A209732 (CA). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI: 1144909789
Provider Name: MATEUS DE OLIVEIRA TAVEIRA MD, PHD
Gender: Male
Entity Type: Individual
Location Address: 505 PARNASSUS AVE FL 3 SAN FRANCISCO, CA 94143
Location Phone: (415) 476-1537
Location Fax: (415) 476-0616
Mailing Address: 1233 YORK AVE APT 14I NEW YORK, NY 10065
Is Sole Proprietor?: No
Enumeration Date: 07-12-2023
Last Update Date: 06-02-2026
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Location Map

Secondary Locations

1275 York Ave
New York, NY 10065
(212) 639-5778

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: Radiology Diagnostic Radiology
Taxonomy Code: 2085R0202X
Type: Allopathic & Osteopathic Physicians
License No.: A209732
License State: CA
Taxonomy Description: A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

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	2085R0202X	Allopathic & Osteopathic Physicians	Radiology Diagnostic Radiology	P121147 (NY)

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 1144909789, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 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 4 → 8 9 → 18 → 9 9 → 18 → 9 8 → 16 → 7