PIOTR K GIERLACH LMT
NPI 1841679297
Massage Therapist in Riverhead, NY

NPI Status: Active since May 19, 2015

Contact Information

189 MAIN RD
SUITE A
RIVERHEAD, NY
ZIP 11901
Phone: (631) 828-4471
Fax: (631) 828-4472

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  • Individual
  • Male
  • Massage Therapist

About PIOTR GIERLACH

This page provides the complete NPI Profile along with additional information for Piotr Gierlach, a provider established in Riverhead, New York with a medical specialization in Massage Therapist. The healthcare provider is registered in the NPI registry with number 1841679297 assigned on May 2015. The practitioner's primary taxonomy code is 225700000X with license number 028626-1 (NY). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1841679297
Provider Name
PIOTR K GIERLACH LMT
Gender
Male
Entity Type
Individual
Location Address
189 MAIN RD SUITE A RIVERHEAD, NY 11901
Location Phone
(631) 828-4471
Location Fax
(631) 828-4472
Mailing Address
189 MAIN RD SUITE A RIVERHEAD, NY 11901
Mailing Phone
(631) 369-4323
Mailing Fax
(631) 828-4472
Is Sole Proprietor?
Yes
Enumeration Date
05-19-2015
Last Update Date
07-25-2025
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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.
028626-1
License State
NY
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 1841679297, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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
8
Unchanged
Pos 3
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
7
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
7
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 6 → 12 → 3 9 → 18 → 9 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 1 + 2 + 7 + 1 + 8 + 2 + 1 + 8 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1841679297.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Internal Medicine (Endocrinology, Diabetes & Metabolism)
189 MAIN RD
RIVERHEAD, NY 11901
Nurse Practitioner (Adult Health)
189 MAIN RD
RIVERHEAD, NY 11901
Massage Therapist
189 MAIN RD, SUITE A
RIVERHEAD, NY 11901
Internal Medicine (Endocrinology, Diabetes & Metabolism)
189 MAIN RD, SUITE F
RIVERHEAD, NY 11901
Internal Medicine (Endocrinology, Diabetes & Metabolism)
189 MAIN RD
RIVERHEAD, NY 11901
Nurse Practitioner (Adult Health)
189 MAIN RD
RIVERHEAD, NY 11901
Nurse Practitioner (Adult Health)
189 MAIN RD
RIVERHEAD, NY 11901
Podiatrist
189 MAIN RD
RIVERHEAD, NY 11901
Podiatrist (Foot Surgery)
189 MAIN RD
RIVERHEAD, NY 11901
Chiropractor
189 MAIN RD, SUITE A
RIVERHEAD, NY 11901

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841679297, enumerated as an "individual" on May 19, 2015.

The provider is located at 189 MAIN RD SUITE A RIVERHEAD, NY 11901 and the phone number is (631) 828-4471.

Massage Therapist with taxonomy code 225700000X.