MR. GUILLERMO CALLEJA L.M.H.C.
NPI 1154835502
Counselor in Great Neck, NY

NPI Status: Active since November 21, 2017

Contact Information

11 GRACE AVE STE 204
GREAT NECK, NY
ZIP 11021
Phone: (917) 680-3882

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  • Individual
  • Male
  • Counselor

About GUILLERMO CALLEJA

This page provides the complete NPI Profile along with additional information for Guillermo Calleja, a provider established in Great Neck, New York with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1154835502 assigned on November 2017. The practitioner's primary taxonomy code is 101Y00000X with license number 003916 (NY). The provider is registered as an individual and his NPI record was last updated 9 years ago.

NPI
1154835502
Provider Name
MR. GUILLERMO CALLEJA L.M.H.C.
Gender
Male
Entity Type
Individual
Location Address
11 GRACE AVE STE 204 GREAT NECK, NY 11021
Location Phone
(917) 680-3882
Mailing Address
11 GRACE AVENUE SUITE 204 GREAT NECK, NY 11021
Mailing Phone
(917) 680-3882
Is Sole Proprietor?
No
Enumeration Date
11-21-2017
Last Update Date
11-21-2017
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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

Counselor

Taxonomy Code
101Y00000X
Type
Behavioral Health & Social Service Providers
License No.
003916
License State
NY
Taxonomy Description
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

003916 (NY)

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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 1154835502, we treat the final digit (2) 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 2).

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
1
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
3
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
2
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 5 → 10 → 1 8 → 16 → 7 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 0 + 4 + 1 + 6 + 3 + 1 + 0 + 5 + 0 + 24 = 48

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

The next multiple of ten after 48 is 50. The difference is the calculated check digit.

50 - 48 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1154835502.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Specialist
11 GRACE AVE STE 204
GREAT NECK, NY 11021
Psychologist (Cognitive & Behavioral)
11 GRACE AVE STE 204
GREAT NECK, NY 11021
Psychiatry & Neurology (Psychiatry)
11 GRACE AVE STE 204
GREAT NECK, NY 11021

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1154835502, enumerated as an "individual" on November 21, 2017.

The provider is located at 11 GRACE AVE STE 204 GREAT NECK, NY 11021 and the phone number is (917) 680-3882.

Counselor with taxonomy code 101Y00000X.