GRACE SALARDA MAHAYAG PT
NPI 1083053037
Specialist in Richmond Hill, NY

NPI Status: Active since June 21, 2013

Contact Information

13411 KEW GARDENS RD
RICHMOND HILL, NY
ZIP 11418
Phone: (347) 875-1617

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NPPES record last updated: June 21, 2013. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Female
  • Specialist

About GRACE MAHAYAG

This page provides the complete NPI Profile along with additional information for Grace Mahayag, a provider established in Richmond Hill, New York with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1083053037 assigned on June 2013. The practitioner's primary taxonomy code is 174400000X with license number 036344 (NY). The provider is registered as an individual and her NPI record was last updated 13 years ago.

NPI
1083053037
Provider Name
GRACE SALARDA MAHAYAG PT
Gender
Female
Entity Type
Individual
Location Address
13411 KEW GARDENS RD RICHMOND HILL, NY 11418
Location Phone
(347) 875-1617
Mailing Address
13715 70TH RD FLUSHING, NY 11367
Mailing Phone
(347) 885-8950
Is Sole Proprietor?
No
Enumeration Date
06-21-2013
Last Update Date
06-21-2013
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
036344
License State
NY
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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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 1083053037, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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
0
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
3
Unchanged
Pos 5
0
Doubled → 0
Pos 6
5
Unchanged
Pos 7
3
Doubled → 6
Pos 8
0
Unchanged
Pos 9
3
Doubled → 6
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 8 → 16 → 7 0 → 0 3 → 6 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 6 + 3 + 0 + 5 + 6 + 0 + 6 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1083053037.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Early Intervention Provider Agency
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Speech-Language Pathologist
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Early Intervention Provider Agency
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Speech-Language Pathologist
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Health Maintenance Organization
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD, 2ND FLOOR
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD, SECON FLOOR
RICHMOND HILL, NY 11418
Specialist
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Case Manager/Care Coordinator
13411 KEW GARDENS RD, SECOND FLOOR
RICHMOND HILL, NY 11418
Social Worker
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Developmental Therapist
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Speech-Language Pathologist
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418
Early Intervention Provider Agency
13411 KEW GARDENS RD
RICHMOND HILL, NY 11418

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1083053037, enumerated as an "individual" on June 21, 2013.

The provider is located at 13411 KEW GARDENS RD RICHMOND HILL, NY 11418 and the phone number is (347) 875-1617.

Specialist with taxonomy code 174400000X.