JOSEPH O'HALLORAN
NPI 1881440469
Counselor - Addiction (Substance Use Disorder) in Baltimore, MD

NPI Status: Active since April 25, 2024

Contact Information

1001 W PRATT ST
BALTIMORE, MD
ZIP 21223
Phone: (443) 462-3400
Fax: (443) 462-3090

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

About JOSEPH O'HALLORAN

This page provides the complete NPI Profile along with additional information for Joseph O'halloran, a provider established in Baltimore, Maryland with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1881440469 assigned on April 2024. The practitioner's primary taxonomy code is 101YA0400X. The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1881440469
Provider Name
JOSEPH O'HALLORAN
Gender
Male
Entity Type
Individual
Location Address
1001 W PRATT ST BALTIMORE, MD 21223
Location Phone
(443) 462-3400
Location Fax
(443) 462-3090
Mailing Address
1001 W PRATT ST BALTIMORE, MD 21223
Mailing Phone
(443) 462-3400
Mailing Fax
(443) 462-3090
Is Sole Proprietor?
No
Enumeration Date
04-25-2024
Last Update Date
04-25-2024
Code Navigator

A Substance Abuse or Addiction Counselor like Joseph 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.

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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 Addiction (Substance Use Disorder)

Taxonomy Code
101YA0400X
Type
Behavioral Health & Social Service Providers

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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 1881440469, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
8
Doubled → 16 → 1 + 6
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
0
Doubled → 0
Pos 8
4
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
9
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 4 → 8 0 → 0 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 6 + 1 + 8 + 4 + 0 + 4 + 1 + 2 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1881440469.

Other Providers at the Same Location


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

Clinic/Center (Mental Health (Including Community Mental Health Center))
1001 W PRATT ST
BALTIMORE, MD 21223
Clinic/Center (Rehabilitation)
1001 W PRATT ST
BALTIMORE, MD 21223
Psychiatry & Neurology (Addiction Psychiatry)
1001 W PRATT ST
BALTIMORE, MD 21223
Psychiatry & Neurology (Addiction Medicine)
1001 W PRATT ST
BALTIMORE, MD 21223
Social Worker (Clinical)
1001 W PRATT ST
BALTIMORE, MD 21223
Social Worker
1001 W PRATT ST
BALTIMORE, MD 21223
Social Worker (Clinical)
1001 W PRATT ST
BALTIMORE, MD 21223
Counselor (Professional)
1001 W PRATT ST
BALTIMORE, MD 21223
Counselor (Professional)
1001 W PRATT ST
BALTIMORE, MD 21223
Community/Behavioral Health
1001 W PRATT ST
BALTIMORE, MD 21223
Clinic/Center (Adult Day Care)
1001 W PRATT ST
BALTIMORE, MD 21223
Counselor (Professional)
1001 W PRATT ST
BALTIMORE, MD 21223
Internal Medicine
1001 W PRATT ST
BALTIMORE, MD 21223
Family Medicine (Addiction Medicine)
1001 W PRATT ST
BALTIMORE, MD 21223
Nurse Practitioner (Family)
1001 W PRATT ST
BALTIMORE, MD 21223
Psychologist (Clinical)
1001 W PRATT ST
BALTIMORE, MD 21223
Counselor (Professional)
1001 W PRATT ST
BALTIMORE, MD 21223
Preventive Medicine (Addiction Medicine)
1001 W PRATT ST
BALTIMORE, MD 21223
Family Medicine (Addiction Medicine)
1001 W PRATT ST
BALTIMORE, MD 21223
Clinic/Center (Methadone)
1001 W PRATT ST
BALTIMORE, MD 21223

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1881440469, enumerated as an "individual" on April 25, 2024.

The provider is located at 1001 W PRATT ST BALTIMORE, MD 21223 and the phone number is (443) 462-3400.

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