MR. VINCENT M. O'HALLORAN LADC
NPI 1326743402
Counselor - Addiction (Substance Use Disorder) in Darien, CT

NPI Status: Active since March 30, 2023

Contact Information

30 OLD KINGS HWY S
DARIEN, CT
ZIP 06820
Phone: (203) 252-1565

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  • Individual
  • Male
  • Counselor
  • Addiction (Substance Use Disorder)

About VINCENT O'HALLORAN

This page provides the complete NPI Profile along with additional information for Vincent O'halloran, a provider established in Darien, Connecticut with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1326743402 assigned on March 2023. The practitioner's primary taxonomy code is 101YA0400X with license number 1473 (CT). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1326743402
Provider Name
MR. VINCENT M. O'HALLORAN LADC
Gender
Male
Entity Type
Individual
Location Address
30 OLD KINGS HWY S DARIEN, CT 06820
Location Phone
(203) 252-1565
Mailing Address
3 RENZULLI RD WESTPORT, CT 06880
Mailing Phone
(203) 247-4399
Is Sole Proprietor?
Yes
Enumeration Date
03-30-2023
Last Update Date
03-30-2023
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A Substance Abuse or Addiction Counselor like Vincent O'halloran advices patients who experience alcoholism, drug addiction, eating disorders, mental health issues, or other mental or behavioral problems. Substance Abuse counselors provide treatment and support to help clients recover from addiction or modify problem behaviors. Many counselors incorporate the principles of 12-step programs, such as Alcoholics Anonymous (AA). They educate clients how to cope with stress and life’s issues in ways that help them recover. Counselors also help patients improve their personal relationships and find ways to discuss their addiction or other problems with family and friends.

Location Map

Secondary Locations

  • 3 Renzulli Rd
    Westport, CT 06880
    (203) 247-4399

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 Addiction (Substance Use Disorder)

Taxonomy Code
101YA0400X
Type
Behavioral Health & Social Service Providers
License No.
1473
License State
CT

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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 1326743402, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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
3
Unchanged
Pos 3
2
Doubled → 4
Pos 4
6
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
4
Unchanged
Pos 7
3
Doubled → 6
Pos 8
4
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 2 → 4 7 → 14 → 5 3 → 6 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 4 + 6 + 1 + 4 + 4 + 6 + 4 + 0 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1326743402.

Other Providers at the Same Location


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

Counselor (Professional)
30 OLD KINGS HWY S
DARIEN, CT 06820
Social Worker (Clinical)
30 OLD KINGS HWY S
DARIEN, CT 06820
Durable Medical Equipment & Medical Supplies
30 OLD KINGS HWY S
DARIEN, CT 06820
Social Worker (Clinical)
30 OLD KINGS HWY S
DARIEN, CT 06820
Counselor (Professional)
30 OLD KINGS HWY S
DARIEN, CT 06820
Social Worker (Clinical)
30 OLD KINGS HWY S
DARIEN, CT 06820
Counselor (Professional)
30 OLD KINGS HWY S
DARIEN, CT 06820
Psychologist
30 OLD KINGS HWY S
DARIEN, CT 06820
Social Worker (Clinical)
30 OLD KINGS HWY S
DARIEN, CT 06820
Counselor (Mental Health)
30 OLD KINGS HWY S
DARIEN, CT 06820
Counselor (Professional)
30 OLD KINGS HWY S
DARIEN, CT 06820
Marriage & Family Therapist
30 OLD KINGS HWY S
DARIEN, CT 06820
Nurse Practitioner (Family)
30 OLD KINGS HWY S
DARIEN, CT 06820
Social Worker (Clinical)
30 OLD KINGS HWY S
DARIEN, CT 06820
Psychologist (Clinical)
30 OLD KINGS HWY S
DARIEN, CT 06820
Psychiatry & Neurology (Child & Adolescent Psychiatry)
30 OLD KINGS HWY S
DARIEN, CT 06820
Psychiatry & Neurology (Child & Adolescent Psychiatry)
30 OLD KINGS HWY S
DARIEN, CT 06820
Counselor (Professional)
30 OLD KINGS HWY S
DARIEN, CT 06820
Counselor (Professional)
30 OLD KINGS HWY S
DARIEN, CT 06820
Social Worker
30 OLD KINGS HWY S
DARIEN, CT 06820

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1326743402, enumerated as an "individual" on March 30, 2023.

The provider is located at 30 OLD KINGS HWY S DARIEN, CT 06820 and the phone number is (203) 252-1565.

Counselor with taxonomy code 101YA0400X and a focus in Addiction (Substance Use Disorder).