PAUL IAN RODRIGUEZ TIAMZON
NPI 1679499693
Nurse Practitioner - Psychiatric/Mental Health in Irvine, CA

NPI Status: Active since June 24, 2026

Contact Information

15615 ALTON PKWY STE 450
IRVINE, CA
ZIP 92618
Phone: (949) 228-9607
Fax: (714) 202-8858

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

About PAUL IAN TIAMZON

This page provides the complete NPI Profile along with additional information for Paul Ian Tiamzon, a provider established in Irvine, California with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1679499693 assigned on June 2026. The practitioner's primary taxonomy code is 363LP0808X with license number 95040187 (CA). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1679499693
Provider Name
PAUL IAN RODRIGUEZ TIAMZON
Gender
Male
Entity Type
Individual
Location Address
15615 ALTON PKWY STE 450 IRVINE, CA 92618
Location Phone
(949) 228-9607
Location Fax
(714) 202-8858
Mailing Address
212 S KRAEMER BLVD UNIT 404 PLACENTIA, CA 92870
Mailing Phone
(949) 228-9607
Mailing Fax
(714) 202-8858
Is Sole Proprietor?
No
Enumeration Date
06-24-2026
Last Update Date
06-25-2026

A nurse practitioner (NP) like Paul Ian Tiamzon 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.
95040187
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 1679499693, we treat the final digit (3) 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 87. The final step is to find the difference between that total and the next multiple of ten (90 - 87 = 3).

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
6
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
6
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
3
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 7 → 14 → 5 4 → 8 9 → 18 → 9 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 8 + 9 + 1 + 8 + 6 + 1 + 8 + 24 = 87

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

The next multiple of ten after 87 is 90. The difference is the calculated check digit.

90 - 87 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1679499693.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Marriage & Family Therapist
15615 ALTON PKWY STE 450
IRVINE, CA 92618
Counselor (Mental Health)
15615 ALTON PKWY STE 450
IRVINE, CA 92618
Marriage & Family Therapist
15615 ALTON PKWY STE 450
IRVINE, CA 92618
Clinical Neuropsychologist
15615 ALTON PKWY STE 450
IRVINE, CA 92618
Psychologist (Clinical)
15615 ALTON PKWY STE 450
IRVINE, CA 92618
Psychologist (Clinical)
15615 ALTON PKWY STE 450
IRVINE, CA 92618
Nurse Practitioner (Psychiatric/Mental Health)
15615 ALTON PKWY STE 450
IRVINE, CA 92618
Registered Nurse (Psychiatric/Mental Health)
15615 ALTON PKWY STE 450
IRVINE, CA 92618

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1679499693, enumerated as an "individual" on June 24, 2026.

The provider is located at 15615 ALTON PKWY STE 450 IRVINE, CA 92618 and the phone number is (949) 228-9607.

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