KATHERINE WU
NPI 1588531271
Pharmacist - Ambulatory Care in Whittier, CA
NPI Status: Active since October 20, 2025
Contact Information
12401 WASHINGTON BLVD
WHITTIER, CA
ZIP 90602
Phone: (562) 698-0811
- Individual
- Female
- Pharmacist
- Ambulatory Care
About KATHERINE WU
This page provides the complete NPI Profile along with additional information for Katherine Wu, a provider established in Whittier, California with a medical specialization in Pharmacist, focusing in ambulatory care . The healthcare provider is registered in the NPI registry with number 1588531271 assigned on October 2025. The practitioner's primary taxonomy code is 1835P2201X with license number 84550 (CA). The provider is registered as an individual and her NPI record was last updated one year ago. Katherine Wu operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization.
- NPI
- 1588531271
- Provider Name
- KATHERINE WU
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 12401 WASHINGTON BLVD WHITTIER, CA 90602
- Location Phone
- (562) 698-0811
- Mailing Address
- 115 S STATE COLLEGE BLVD UNIT 469 BREA, CA 92821
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 10-20-2025
- Last Update Date
- 10-20-2025
- Code Navigator
A pharmacist like Katherine Wu 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 Ambulatory Care
- Taxonomy Code
- 1835P2201X
- Type
- Pharmacy Service Providers
- License No.
- 84550
- License State
- CA
- Taxonomy Description
- A licensed pharmacist who has demonstrated specialized knowledge and skill in the provision of integrated, accessible health care services by pharmacists and is accountable for addressing medication needs, developing sustained partnerships with patients, and practicing in the context of family and community.
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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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 1588531271, 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.
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 59 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
WHITTIER, CA 90602
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1588531271, enumerated as an "individual" on October 20, 2025.
The provider is located at 12401 WASHINGTON BLVD WHITTIER, CA 90602 and the phone number is (562) 698-0811.
Pharmacist with taxonomy code 1835P2201X and a focus in Ambulatory Care.
