DENNIS DANIEL TIRCH PHD
NPI 1891979324
Psychologist - Cognitive & Behavioral in New York, NY

NPI Status: Active since December 19, 2007

Contact Information

136 E 57TH ST
SUITE 1101
NEW YORK, NY
ZIP 10022
Phone: (212) 308-3619

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  • Individual
  • Male
  • Psychologist
  • Cognitive & Behavioral

About DENNIS TIRCH

This page provides the complete NPI Profile along with additional information for Dennis Tirch, a provider established in New York, New York with a medical specialization in Psychologist, focusing in cognitive & behavioral . The healthcare provider is registered in the NPI registry with number 1891979324 assigned on December 2007. The practitioner's primary taxonomy code is 103TB0200X with license number 015486 (NY). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1891979324
Provider Name
DENNIS DANIEL TIRCH PHD
Gender
Male
Entity Type
Individual
Location Address
136 E 57TH ST SUITE 1101 NEW YORK, NY 10022
Location Phone
(212) 308-3619
Mailing Address
136 E 57TH ST SUITE 1101 NEW YORK, NY 10022
Mailing Phone
(212) 308-3619
Is Sole Proprietor?
No
Enumeration Date
12-19-2007
Last Update Date
12-19-2007
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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

Psychologist Cognitive & Behavioral

Taxonomy Code
103TB0200X
Type
Behavioral Health & Social Service Providers
License No.
015486
License State
NY
Taxonomy Description
A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.

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)
1103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

015486 (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 1891979324, we treat the final digit (4) 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 76. The final step is to find the difference between that total and the next multiple of ten (80 - 76 = 4).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 8 + 7 + 1 + 8 + 3 + 4 + 24 = 76

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

The next multiple of ten after 76 is 80. The difference is the calculated check digit.

80 - 76 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1891979324.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Podiatrist
136 E 57TH ST, SUITE 801
NEW YORK, NY 10022
Physical Therapist
136 E 57TH ST, SUITE #705
NEW YORK, NY 10022
Chiropractor
136 E 57TH ST, STE 600
NEW YORK, NY 10022
Social Worker (Clinical)
136 E 57TH ST, SUTIE 405
NEW YORK, NY 10022
Internal Medicine
136 E 57TH ST, SUITE 600
NEW YORK, NY 10022
Psychologist (Cognitive & Behavioral)
136 E 57TH ST, SUITE 1101
NEW YORK, NY 10022
Psychologist (Cognitive & Behavioral)
136 E 57TH ST, SUITE 1101
NEW YORK, NY 10022
Psychologist (Clinical)
136 E 57TH ST, SUITE 1101
NEW YORK, NY 10022
Psychologist (Clinical)
136 E 57TH ST, SUITE 1101
NEW YORK, NY 10022
Psychologist (Cognitive & Behavioral)
136 E 57TH ST, SUITE 1101
NEW YORK, NY 10022
Psychologist (Cognitive & Behavioral)
136 E 57TH ST, 1101
NEW YORK, NY 10022
Dentist
136 E 57TH ST, SUITE 1604
NEW YORK, NY 10022
Psychologist (Clinical)
136 E 57TH ST, SUITE 1101
NEW YORK, NY 10022
Podiatrist (Foot & Ankle Surgery)
136 E 57TH ST, SUITE 801
NEW YORK, NY 10022
Student in an Organized Health Care Education/Training Program
136 E 57TH ST
NEW YORK, NY 10022
Psychologist
136 E 57TH ST, 1101
NEW YORK, NY 10022
Dentist
136 E 57TH ST, #1604
NEW YORK, NY 10022
Psychologist (Cognitive & Behavioral)
136 E 57TH ST, #1101
NEW YORK, NY 10022
Psychologist (Clinical)
136 E 57TH ST
NEW YORK, NY 10022
Optometrist (Corneal and Contact Management)
136 E 57TH ST, SUITE 1502
NEW YORK, NY 10022

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891979324, enumerated as an "individual" on December 19, 2007.

The provider is located at 136 E 57TH ST SUITE 1101 NEW YORK, NY 10022 and the phone number is (212) 308-3619.

Psychologist with taxonomy code 103TB0200X and a focus in Cognitive & Behavioral.