ESTHER CHU
NPI 1104768951
Pharmacist in Orange, CA

NPI Status: Active since April 08, 2026

Contact Information

1201 W LA VETA AVE
ORANGE, CA
ZIP 92868
Phone: (714) 509-8008

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  • Individual
  • Pharmacist

About ESTHER CHU

This page provides the complete NPI Profile along with additional information for Esther Chu, a provider established in Orange, California operating as a Pharmacist. The healthcare provider is registered in the NPI registry with number 1104768951 assigned on April 2026. The practitioner's primary taxonomy code is 183500000X with license number RPH89199 (CA). The provider is registered as an individual and their NPI record was last updated April 2026.

NPI
1104768951
Provider Name
ESTHER CHU
Gender
Entity Type
Individual
Location Address
1201 W LA VETA AVE ORANGE, CA 92868
Location Phone
(714) 509-8008
Mailing Address
1201 W LA VETA AVE ORANGE, CA 92868
Is Sole Proprietor?
No
Enumeration Date
04-08-2026
Last Update Date
04-08-2026
Code Navigator

A pharmacist like Esther Chu 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.
RPH89199
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 1104768951, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
0
Doubled → 0
Pos 4
4
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
6
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
9
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
1
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 8 → 16 → 7 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 1 + 4 + 6 + 1 + 6 + 9 + 1 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1104768951.

Other Providers at the Same Location


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

Radiology (Diagnostic Radiology)
1201 W LA VETA AVE, STE. 102
ORANGE, CA 92868
Optometrist
1201 W LA VETA AVE, STE 406
ORANGE, CA 92868
Internal Medicine (Gastroenterology)
1201 W LA VETA AVE, SUITE 211
ORANGE, CA 92868
Allergy & Immunology
1201 W LA VETA AVE, STE 501
ORANGE, CA 92868
Nurse Practitioner
1201 W LA VETA AVE, STE 501
ORANGE, CA 92868
Pathology (Anatomic Pathology & Clinical Pathology)
1201 W LA VETA AVE, SUITE 608
ORANGE, CA 92868
Otolaryngology
1201 W LA VETA AVE, SUITE 604
ORANGE, CA 92868
Ophthalmology
1201 W LA VETA AVE, 300
ORANGE, CA 92868
Dentist (General Practice)
1201 W LA VETA AVE, 301
ORANGE, CA 92868
Surgery (Pediatric Surgery)
1201 W LA VETA AVE
ORANGE, CA 92868
Clinical Neuropsychologist
1201 W LA VETA AVE, SUITE 503
ORANGE, CA 92868
Physical Therapy Assistant
1201 W LA VETA AVE
ORANGE, CA 92868
Allergy & Immunology (Allergy)
1201 W LA VETA AVE
ORANGE, CA 92868
Pediatrics (Pediatric Endocrinology)
1201 W LA VETA AVE
ORANGE, CA 92868
Pediatrics (Pediatric Hematology-Oncology)
1201 W LA VETA AVE
ORANGE, CA 92868
Pediatrics (Pediatric Critical Care Medicine)
1201 W LA VETA AVE
ORANGE, CA 92868
Pediatrics (Pediatric Rheumatology)
1201 W LA VETA AVE
ORANGE, CA 92868
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
1201 W LA VETA AVE
ORANGE, CA 92868
Pediatrics (Pediatric Infectious Diseases)
1201 W LA VETA AVE
ORANGE, CA 92868
Pediatrics (Pediatric Pulmonology)
1201 W LA VETA AVE
ORANGE, CA 92868

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104768951, enumerated as an "individual" on April 08, 2026.

The provider is located at 1201 W LA VETA AVE ORANGE, CA 92868 and the phone number is (714) 509-8008.

Pharmacist with taxonomy code 183500000X.