MARDEA HALLEY PMHNP-BC
NPI 1437026465
Nurse Practitioner - Psychiatric/Mental Health in Cranston, RI

NPI Status: Active since October 23, 2025

Contact Information

1150 RESERVOIR AVE STE 203
CRANSTON, RI
ZIP 02920
Phone: (401) 259-0340
Fax: (401) 213-8538

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

Individual
Female
Nurse Practitioner
Psychiatric/Mental Health

About MARDEA HALLEY

This page provides the complete NPI Profile along with additional information for Mardea Halley, a provider established in Cranston, Rhode Island with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1437026465 assigned on October 2025. The practitioner's primary taxonomy code is 363LP0808X with license number APRN04817 (RI). The provider is registered as an individual and her NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI: 1437026465
Provider Name: MARDEA HALLEY PMHNP-BC
Gender: Female
Entity Type: Individual
Location Address: 1150 RESERVOIR AVE STE 203 CRANSTON, RI 02920
Location Phone: (401) 259-0340
Location Fax: (401) 213-8538
Mailing Address: 1150 RESERVOIR AVE STE 203 CRANSTON, RI 02920
Mailing Phone: (401) 259-0340
Is Sole Proprietor?: Yes
Enumeration Date: 10-23-2025
Last Update Date: 11-12-2025
Code Navigator

A nurse practitioner (NP) like Mardea Halley is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

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: Nurse Practitioner Psychiatric/Mental Health
Taxonomy Code: 363LP0808X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: APRN04817
License State: RI

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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 1437026465, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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 → 6

Pos 4

Unchanged

Pos 5

Doubled → 0

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

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 3 → 6 0 → 0 6 → 12 → 3 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 6 + 7 + 0 + 2 + 1 + 2 + 4 + 1 + 2 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5

This NPI is valid

The calculated check digit is 5, which matches the last digit of 1437026465.