HASSE RATZ
NPI 1609717735
Massage Therapist in Hilo, HI

NPI Status: Active since April 02, 2026

Contact Information

639 KINOOLE ST
HILO, HI
ZIP 96720
Phone: (808) 315-7488

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  • Individual
  • Male
  • Massage Therapist

About HASSE RATZ

This page provides the complete NPI Profile along with additional information for Hasse Ratz, a provider established in Hilo, Hawaii with a medical specialization in Massage Therapist. The healthcare provider is registered in the NPI registry with number 1609717735 assigned on April 2026. The practitioner's primary taxonomy code is 225700000X with license number 17740 (HI). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1609717735
Provider Name
HASSE RATZ
Gender
Male
Entity Type
Individual
Location Address
639 KINOOLE ST HILO, HI 96720
Location Phone
(808) 315-7488
Mailing Address
3069 KAIWIKI RD HILO, HI 96720
Mailing Phone
(808) 769-0718
Is Sole Proprietor?
Yes
Enumeration Date
04-02-2026
Last Update Date
04-02-2026
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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

Massage Therapist

Taxonomy Code
225700000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
17740
License State
HI
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.

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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 1609717735, 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
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
0
Doubled → 0
Pos 4
9
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
7
Unchanged
Pos 9
3
Doubled → 6
Check
5
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 0 → 0 7 → 14 → 5 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 0 + 9 + 1 + 4 + 1 + 1 + 4 + 7 + 6 + 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 1609717735.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1609717735, enumerated as an "individual" on April 02, 2026.

The provider is located at 639 KINOOLE ST HILO, HI 96720 and the phone number is (808) 315-7488.

Massage Therapist with taxonomy code 225700000X.