DR. JESSICA EUNJOO CHANG PHARM.D.
NPI 1801175120
Pharmacist - Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in Valencia, CA
NPI Status: Active since August 04, 2011
Contact Information
27760 MCBEAN PKWY
VALENCIA, CA
ZIP 91354
Phone: (661) 263-6480
Fax: (661) 263-6488
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Female
- Pharmacist
- Pharmacist Clinician (PhC)/ Clinical Pha...
About JESSICA CHANG
This page provides the complete NPI Profile along with additional information for Jessica Chang, a provider established in Valencia, California with a medical specialization in Pharmacist, focusing in pharmacist clinician (phc)/ clinical pharmacy specialist . The healthcare provider is registered in the NPI registry with number 1801175120 assigned on August 2011. The practitioner's primary taxonomy code is 1835P0018X with license number RPH50547 (CA). The provider is registered as an individual and her NPI record was last updated June 2026.
- NPI
- 1801175120
- Provider Name
- DR. JESSICA EUNJOO CHANG PHARM.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 27760 MCBEAN PKWY VALENCIA, CA 91354
- Location Phone
- (661) 263-6480
- Location Fax
- (661) 263-6488
- Mailing Address
- 27760 MCBEAN PKWY VALENCIA, CA 91354
- Mailing Phone
- (661) 263-6480
- Mailing Fax
- (661) 263-6488
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-04-2011
- Last Update Date
- 06-03-2026
- Code Navigator
A pharmacist like Jessica Chang 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 Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist
- Taxonomy Code
- 1835P0018X
- Type
- Pharmacy Service Providers
- License No.
- RPH50547
- License State
- CA
- Taxonomy Description
- Pharmacist Clinician/Clinical Pharmacy Specialist is a pharmacist with additional training and an expanded scope of practice that may include prescriptive authority, therapeutic management, and disease management.
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) |
|---|---|---|---|---|
| 1 | 183500000X | Pharmacy Service Providers | Pharmacist | RPH50547 (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 1801175120, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 50 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
VALENCIA, CA 91354
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1801175120, enumerated as an "individual" on August 04, 2011.
The provider is located at 27760 MCBEAN PKWY VALENCIA, CA 91354 and the phone number is (661) 263-6480.
Pharmacist with taxonomy code 1835P0018X and a focus in Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist.
