DEBORAH KARCHER LCSW
NPI 1891441978
Social Worker - Clinical in Northport, NY

NPI Status: Active since February 27, 2022

Contact Information

79 MIDDLEVILLE RD
NORTHPORT, NY
ZIP 11768
Phone: (917) 886-9750

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  • Individual
  • Female
  • Social Worker
  • Clinical

About DEBORAH KARCHER

This page provides the complete NPI Profile along with additional information for Deborah Karcher, a provider established in Northport, New York with a medical specialization in Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1891441978 assigned on February 2022. The practitioner's primary taxonomy code is 1041C0700X with license number 101045-01 (NY). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1891441978
Provider Name
DEBORAH KARCHER LCSW
Gender
Female
Entity Type
Individual
Location Address
79 MIDDLEVILLE RD NORTHPORT, NY 11768
Location Phone
(917) 886-9750
Mailing Address
79 MIDDLEVILLE RD NORTHPORT, NY 11768
Mailing Phone
(917) 886-9750
Is Sole Proprietor?
Yes
Enumeration Date
02-27-2022
Last Update Date
04-13-2026
Code Navigator

A clinical social worker like Deborah Karcher is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.

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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

Social Worker Clinical

Taxonomy Code
1041C0700X
Type
Behavioral Health & Social Service Providers
License No.
101045-01
License State
NY
Taxonomy Description
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

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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 1891441978, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
1
Doubled → 2
Pos 8
9
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
8
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 4 → 8 1 → 2 7 → 14 → 5

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 + 8 + 4 + 2 + 9 + 1 + 4 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1891441978.

Other Providers at the Same Location


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

Psychologist (Clinical)
79 MIDDLEVILLE RD, VA MEDICAL CENTER, PSYCHOLOGY SERVICE (116B)
NORTHPORT, NY 11768
Internal Medicine (Geriatric Medicine)
79 MIDDLEVILLE RD, NORTHPORT VAMC
NORTHPORT, NY 11768
Internal Medicine (Hematology & Oncology)
79 MIDDLEVILLE RD, 111-S
NORTHPORT, NY 11768
Internal Medicine (Pulmonary Disease)
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Nurse Practitioner (Adult Health)
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Nurse Practitioner
79 MIDDLEVILLE RD, HEM/ONC DEPART BLDG 200
NORTHPORT, NY 11768
Internal Medicine (Nephrology)
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Internal Medicine
79 MIDDLEVILLE RD, VA MEDICAL CENTER
NORTHPORT, NY 11768
Dentist (General Practice)
79 MIDDLEVILLE RD, VAMC MEDICAL CENTER, DENTAL SERVICE (160)
NORTHPORT, NY 11768
Internal Medicine
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Speech-Language Pathologist
79 MIDDLEVILLE RD, NORTHPORT VAMC ASPS-126
NORTHPORT, NY 11768
Audiologist
79 MIDDLEVILLE RD, ASPS#126
NORTHPORT, NY 11768
Audiologist-Hearing Aid Fitter
79 MIDDLEVILLE RD, 126
NORTHPORT, NY 11768
Physician Assistant (Medical)
79 MIDDLEVILLE RD, NORTHPORT VA MEDICAL CENTER
NORTHPORT, NY 11768
Physician Assistant (Medical)
79 MIDDLEVILLE RD, NORTHPORT VA MEDICAL CENTER
NORTHPORT, NY 11768
Nurse Practitioner (Adult Health)
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Pharmacist (Pharmacotherapy)
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Nurse Practitioner (Psychiatric/Mental Health)
79 MIDDLEVILLE RD, 116A
NORTHPORT, NY 11768
Internal Medicine
79 MIDDLEVILLE RD, NORTHPORT VAMC
NORTHPORT, NY 11768
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
79 MIDDLEVILLE RD
NORTHPORT, NY 11768

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891441978, enumerated as an "individual" on February 27, 2022.

The provider is located at 79 MIDDLEVILLE RD NORTHPORT, NY 11768 and the phone number is (917) 886-9750.

Social Worker with taxonomy code 1041C0700X and a focus in Clinical.