CORNELIO THOMAS DELAROSA JR.
NPI 1679405815
Peer Specialist in Tumwater, WA

NPI Status: Active since June 02, 2026

Contact Information

9474 LATHROP INDUSTRIAL DR SW
TUMWATER, WA
ZIP 98512
Phone: (360) 583-3340

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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
Male
Peer Specialist

About CORNELIO DELAROSA

This page provides the complete NPI Profile along with additional information for Cornelio Delarosa, a provider established in Tumwater, Washington with a medical specialization in Peer Specialist. The healthcare provider is registered in the NPI registry with number 1679405815 assigned on June 2026. The practitioner's primary taxonomy code is 175T00000X. The provider is registered as an individual and his NPI record was last updated June 2026.

NPI: 1679405815
Provider Name: CORNELIO THOMAS DELAROSA JR.
Gender: Male
Entity Type: Individual
Location Address: 9474 LATHROP INDUSTRIAL DR SW TUMWATER, WA 98512
Location Phone: (360) 583-3340
Mailing Address: 1887 WHITNEY MESA DR # 5589 HENDERSON, NV 89014
Mailing Phone: (360) 583-3340
Is Sole Proprietor?: No
Enumeration Date: 06-02-2026
Last Update Date: 06-02-2026
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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: Peer Specialist
Taxonomy Code: 175T00000X
Type: Other Service Providers
License State: WA
Taxonomy Description: Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

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 1679405815, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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 → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 2

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 7 → 14 → 5 4 → 8 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 8 + 0 + 1 + 0 + 8 + 2 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5

This NPI is valid

The calculated check digit is 5, which matches the last digit of 1679405815.