ALEXANDRA HALEY MACKENZIE APRN, PMHNP-BC
NPI 1164256376
Nurse Practitioner - Psychiatric/Mental Health in Johnston, RI

NPI Status: Active since August 29, 2024

Contact Information

1443 HARTFORD AVE
JOHNSTON, RI
ZIP 02919
Phone: (401) 273-8100

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  • Individual
  • Female
  • Nurse Practitioner
  • Psychiatric/Mental Health

About ALEXANDRA MACKENZIE

This page provides the complete NPI Profile along with additional information for Alexandra Mackenzie, a provider established in Johnston, 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 1164256376 assigned on August 2024. The practitioner's primary taxonomy code is 363LP0808X with license number APRN04583 (RI). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1164256376
Provider Name
ALEXANDRA HALEY MACKENZIE APRN, PMHNP-BC
Gender
Female
Entity Type
Individual
Location Address
1443 HARTFORD AVE JOHNSTON, RI 02919
Location Phone
(401) 273-8100
Mailing Address
15 LA SALLE SQ PROVIDENCE, RI 02903
Mailing Phone
(401) 444-6779
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
08-29-2024
Last Update Date
12-09-2025
Code Navigator

A nurse practitioner (NP) like Alexandra Mackenzie 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

Secondary Locations

  • 1445 Wampanoag Trl Unit 202
    Riverside, RI 02915
    (401) 437-4116

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.
APRN04583
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)
1163W00000XNursing Service Providers

Registered Nurse

RN62588 (RI)

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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 1164256376, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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
1
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
4
Unchanged
Pos 5
2
Doubled → 4
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
3
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 2 → 4 6 → 12 → 3 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 2 + 4 + 4 + 5 + 1 + 2 + 3 + 1 + 4 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1164256376.

Other Providers at the Same Location


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

Registered Nurse
1443 HARTFORD AVE, GATEWAY HEALTHCARE INC
JOHNSTON, RI 02919
Registered Nurse (Psychiatric/Mental Health)
1443 HARTFORD AVE
JOHNSTON, RI 02919
Registered Nurse
1443 HARTFORD AVE
JOHNSTON, RI 02919
Registered Nurse
1443 HARTFORD AVE
JOHNSTON, RI 02919
Registered Nurse
1443 HARTFORD AVE
JOHNSTON, RI 02919
Registered Nurse
1443 HARTFORD AVE
JOHNSTON, RI 02919
Registered Nurse
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor
1443 HARTFORD AVE
JOHNSTON, RI 02919
Registered Nurse
1443 HARTFORD AVE
JOHNSTON, RI 02919
Registered Nurse
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor (Addiction (Substance Use Disorder))
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor (Addiction (Substance Use Disorder))
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor (Addiction (Substance Use Disorder))
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor (Mental Health)
1443 HARTFORD AVE
JOHNSTON, RI 02919
Counselor
1443 HARTFORD AVE
JOHNSTON, RI 02919
Social Worker (Clinical)
1443 HARTFORD AVE
JOHNSTON, RI 02919

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164256376, enumerated as an "individual" on August 29, 2024.

The provider is located at 1443 HARTFORD AVE JOHNSTON, RI 02919 and the phone number is (401) 273-8100.

Nurse Practitioner with taxonomy code 363LP0808X and a focus in Psychiatric/Mental Health.