DIANA NGUYEN PHARMD
NPI 1801763552
Pharmacist in San Diego, CA

NPI Status: Active since October 18, 2025

Contact Information

4077 5TH AVE
SAN DIEGO, CA
ZIP 92103
Phone: (858) 832-2478

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  • Individual
  • Female
  • Pharmacist

About DIANA NGUYEN

This page provides the complete NPI Profile along with additional information for Diana Nguyen, a provider established in San Diego, California with a medical specialization in Pharmacist. The healthcare provider is registered in the NPI registry with number 1801763552 assigned on October 2025. The practitioner's primary taxonomy code is 183500000X with license number 87185 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1801763552
Provider Name
DIANA NGUYEN PHARMD
Gender
Female
Entity Type
Individual
Location Address
4077 5TH AVE SAN DIEGO, CA 92103
Location Phone
(858) 832-2478
Mailing Address
7750 VIA BELFIORE UNIT 5 SAN DIEGO, CA 92129
Mailing Phone
(760) 224-7220
Is Sole Proprietor?
No
Enumeration Date
10-18-2025
Last Update Date
10-18-2025
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A pharmacist like Diana Nguyen fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

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

Pharmacist

Taxonomy Code
183500000X
Type
Pharmacy Service Providers
License No.
87185
License State
CA
Taxonomy Description
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care.

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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 1801763552, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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
8
Unchanged
Pos 3
0
Doubled → 0
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
6
Unchanged
Pos 7
3
Doubled → 6
Pos 8
5
Unchanged
Pos 9
5
Doubled → 10 → 1 + 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 0 → 0 7 → 14 → 5 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 1 + 4 + 6 + 6 + 5 + 1 + 0 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1801763552.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Emergency Medicine
4077 5TH AVE
SAN DIEGO, CA 92103
Emergency Medicine
4077 5TH AVE, EMERGENCY MEDICINE
SAN DIEGO, CA 92103
Emergency Medicine
4077 5TH AVE
SAN DIEGO, CA 92103
Pediatrics (Pediatric Critical Care Medicine)
4077 5TH AVE
SAN DIEGO, CA 92103
Internal Medicine (Cardiovascular Disease)
4077 5TH AVE, MER-35
SAN DIEGO, CA 92103
Anesthesiology
4077 5TH AVE
SAN DIEGO, CA 92103
Psychologist (Clinical)
4077 5TH AVE, D LEVEL, MER 12
SAN DIEGO, CA 92103
Registered Nurse (Psychiatric/Mental Health)
4077 5TH AVE
SAN DIEGO, CA 92103
Registered Nurse (Psychiatric/Mental Health)
4077 5TH AVE, LEVEL D
SAN DIEGO, CA 92103
Social Worker (Clinical)
4077 5TH AVE
SAN DIEGO, CA 92103
Marriage & Family Therapist
4077 5TH AVE
SAN DIEGO, CA 92103
Student in an Organized Health Care Education/Training Program
4077 5TH AVE
SAN DIEGO, CA 92103
Registered Nurse (Registered Nurse First Assistant)
4077 5TH AVE
SAN DIEGO, CA 92103
Internal Medicine (Endocrinology, Diabetes & Metabolism)
4077 5TH AVE, MER35
SAN DIEGO, CA 92103
Psychologist (Clinical)
4077 5TH AVE, BEHAVIORAL HEALTH OUTPATIENT - LEVEL D
SAN DIEGO, CA 92103
Obstetrics & Gynecology
4077 5TH AVE
SAN DIEGO, CA 92103
Emergency Medicine
4077 5TH AVE
SAN DIEGO, CA 92103
Family Medicine
4077 5TH AVE
SAN DIEGO, CA 92103
Nurse Practitioner (Family)
4077 5TH AVE
SAN DIEGO, CA 92103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801763552, enumerated as an "individual" on October 18, 2025.

The provider is located at 4077 5TH AVE SAN DIEGO, CA 92103 and the phone number is (858) 832-2478.

Pharmacist with taxonomy code 183500000X.