JANET CHANG
NPI 1811668817
Pharmacist - Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in San Bernardino, CA

NPI Status: Active since September 21, 2021

Contact Information

1805 MEDICAL CENTER DR
SAN BERNARDINO, CA
ZIP 92411
Phone: (909) 806-1405

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NPPES record last updated: September 21, 2021. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Female
  • Pharmacist
  • Pharmacist Clinician (PhC)/ Clinical Pha...

About JANET CHANG

This page provides the complete NPI Profile along with additional information for Janet Chang, a provider established in San Bernardino, 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 1811668817 assigned on September 2021. The practitioner's primary taxonomy code is 1835P0018X with license number 77006 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1811668817
Provider Name
JANET CHANG
Gender
Female
Entity Type
Individual
Location Address
1805 MEDICAL CENTER DR SAN BERNARDINO, CA 92411
Location Phone
(909) 806-1405
Mailing Address
1805 MEDICAL CENTER DR SAN BERNARDINO, CA 92411
Is Sole Proprietor?
No
Enumeration Date
09-21-2021
Last Update Date
09-21-2021
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A pharmacist like Janet 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.
77006
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.

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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 1811668817, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
1
Doubled → 2
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
Check
7
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 1 → 2 6 → 12 → 3 8 → 16 → 7 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 2 + 1 + 1 + 2 + 6 + 1 + 6 + 8 + 2 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1811668817.

Other Providers at the Same Location


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

Radiology (Diagnostic Radiology)
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Emergency Medicine
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Physician Assistant
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Psychologist
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Psychologist
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Anesthesiology
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Emergency Medicine
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Anesthesiology
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Anesthesiology
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Anesthesiology
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Emergency Medicine
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Emergency Medicine
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Anesthesiology
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Anesthesiology
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Physician Assistant
1805 MEDICAL CENTER DR, ATTENTION ER DEPT
SAN BERNARDINO, CA 92411
Home Health
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Anesthesiology
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Anesthesiology
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
Pharmacist
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411
General Acute Care Hospital
1805 MEDICAL CENTER DR
SAN BERNARDINO, CA 92411

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1811668817, enumerated as an "individual" on September 21, 2021.

The provider is located at 1805 MEDICAL CENTER DR SAN BERNARDINO, CA 92411 and the phone number is (909) 806-1405.

Pharmacist with taxonomy code 1835P0018X and a focus in Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist.