MR. CHRISTOPHER SEAN HARRIGAN R.N., QMHP
NPI 1568751188
Registered Nurse - Psychiatric/Mental Health in Woonsocket, RI

Q: What is the provider's specialty?

The provider's specialty is Registered Nurse with taxonomy code 163WP0808X and a focus in Psychiatric/Mental Health.

NPI Status: Active since April 05, 2011

Contact Information

55 CUMMINGS WAY
WOONSOCKET, RI
ZIP 02895
Phone: (401) 235-7120

NPPES record last updated: October 18, 2012. Verified against the NPPES registry weekly; last sync: July 12, 2026.

Table of Contents

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Registered Nurse
Psychiatric/Mental Health

About CHRISTOPHER HARRIGAN

This page provides the complete NPI Profile along with additional information for Christopher Harrigan, a provider established in Woonsocket, Rhode Island with a medical specialization in Registered Nurse, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1568751188 assigned on April 2011. The practitioner's primary taxonomy code is 163WP0808X with license number RN47059 (RI). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI: 1568751188
Provider Name: MR. CHRISTOPHER SEAN HARRIGAN R.N., QMHP
Gender: Male
Entity Type: Individual
Location Address: 55 CUMMINGS WAY WOONSOCKET, RI 02895
Location Phone: (401) 235-7120
Mailing Address: 750 QUAKER LN #309 EAST GREENWICH, RI 02818
Mailing Phone: (401) 374-2160
Is Sole Proprietor?: No
Enumeration Date: 04-05-2011
Last Update Date: 10-18-2012
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A registered nurse (RN) like Christopher Harrigan coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.

Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.

Location Map

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: Registered Nurse Psychiatric/Mental Health
Taxonomy Code: 163WP0808X
Type: Nursing Service Providers
License No.: RN47059
License State: RI

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)
1	163WG0000X	Nursing Service Providers	Registered Nurse General Practice	RN47059 (RI)

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 1568751188, 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

Check

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 6 → 12 → 3 7 → 14 → 5 1 → 2 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 2 + 8 + 1 + 4 + 5 + 2 + 1 + 1 + 6 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1568751188.