LIANNA TUMBEIRO DIAZ
NPI 1427987056
Massage Therapist in West Linn, OR

NPI Status: Active since May 18, 2026

Contact Information

21860 WILLAMETTE DR
WEST LINN, OR
ZIP 97068
Phone: (503) 650-2394

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Newly Listed Provider
This NPI profile has been added to the NPI registry within the last 30 days.

Table of Contents

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

Individual
Female
Massage Therapist

About LIANNA TUMBEIRO DIAZ

This page provides the complete NPI Profile along with additional information for Lianna Tumbeiro Diaz, a provider established in West Linn, Oregon with a medical specialization in Massage Therapist. The healthcare provider is registered in the NPI registry with number 1427987056 assigned on May 2026. The practitioner's primary taxonomy code is 225700000X with license number 29259 (OR). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI: 1427987056
Provider Name: LIANNA TUMBEIRO DIAZ
Other Name: LIANNA JUAREZ TUMBEIRO
Other Name Type: Other Name (5)
Gender: Female
Entity Type: Individual
Location Address: 21860 WILLAMETTE DR WEST LINN, OR 97068
Location Phone: (503) 650-2394
Mailing Address: 16533 NE HALSEY ST APT 403 PORTLAND, OR 97230
Is Sole Proprietor?: No
Enumeration Date: 05-18-2026
Last Update Date: 05-18-2026
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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: Massage Therapist
Taxonomy Code: 225700000X
Type: Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.: 29259
License State: OR
Taxonomy Description: An individual trained in the manipulation of tissues (as by rubbing, stroking, kneading, or tapping) with the hand or an instrument for remedial or hygienic purposes.

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 1427987056, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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 → 4

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

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 2 → 4 9 → 18 → 9 7 → 14 → 5 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 1 + 8 + 8 + 1 + 4 + 0 + 1 + 0 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1427987056.