HALEY CHRISTINE MORRISSEY-TRUONG
NPI 1184566002
Nurse Practitioner - Psychiatric/Mental Health in Costa Mesa, CA

NPI Status: Active since April 08, 2026

Contact Information

241 E 17TH ST # 1007
COSTA MESA, CA
ZIP 92627
Phone: (310) 806-0997

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

About HALEY MORRISSEY-TRUONG

This page provides the complete NPI Profile along with additional information for Haley Morrissey-truong, a provider established in Costa Mesa, California with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1184566002 assigned on April 2026. The practitioner's primary taxonomy code is 363LP0808X with license number 95039126 (CA). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1184566002
Provider Name
HALEY CHRISTINE MORRISSEY-TRUONG
Gender
Female
Entity Type
Individual
Location Address
241 E 17TH ST # 1007 COSTA MESA, CA 92627
Location Phone
(310) 806-0997
Mailing Address
241 E 17TH ST # 1007 COSTA MESA, CA 92627
Is Sole Proprietor?
No
Enumeration Date
04-08-2026
Last Update Date
04-08-2026
Code Navigator

A nurse practitioner (NP) like Haley Morrissey-truong 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.
95039126
License State
CA

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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 1184566002, 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 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
1
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
4
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
6
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
0
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 8 → 16 → 7 5 → 10 → 1 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 6 + 4 + 1 + 0 + 6 + 1 + 2 + 0 + 0 + 24 = 48

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

The next multiple of ten after 48 is 50. The difference is the calculated check digit.

50 - 48 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1184566002.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1184566002, enumerated as an "individual" on April 08, 2026.

The provider is located at 241 E 17TH ST # 1007 COSTA MESA, CA 92627 and the phone number is (310) 806-0997.

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