CALVIN WAIKEUNG TONG PHARM. D.
NPI 1659804276
Pharmacist in Redwood City, CA

NPI Status: Active since April 10, 2017

Contact Information

910 MARSHALL ST
REDWOOD CITY, CA
ZIP 94063
Phone: (650) 299-2478
Fax: (650) 299-2617

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  • Individual
  • Male
  • Pharmacist

About CALVIN TONG

This page provides the complete NPI Profile along with additional information for Calvin Tong, a provider established in Redwood City, California with a medical specialization in Pharmacist. The healthcare provider is registered in the NPI registry with number 1659804276 assigned on April 2017. The practitioner's primary taxonomy code is 183500000X with license number RPH 50902 (CA). The provider is registered as an individual and his NPI record was last updated 9 years ago.

NPI
1659804276
Provider Name
CALVIN WAIKEUNG TONG PHARM. D.
Gender
Male
Entity Type
Individual
Location Address
910 MARSHALL ST REDWOOD CITY, CA 94063
Location Phone
(650) 299-2478
Location Fax
(650) 299-2617
Mailing Address
910 MARSHALL ST REDWOOD CITY, CA 94063
Mailing Phone
(650) 299-2478
Mailing Fax
(650) 299-2617
Is Sole Proprietor?
No
Enumeration Date
04-10-2017
Last Update Date
04-10-2017
Code Navigator

A pharmacist like Calvin Tong 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.
RPH 50902
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 1659804276, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
0
Unchanged
Pos 7
4
Doubled → 8
Pos 8
2
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 5 → 10 → 1 8 → 16 → 7 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 1 + 6 + 0 + 8 + 2 + 1 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1659804276.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Pharmacist
910 MARSHALL ST, SUITE 118
REDWOOD CITY, CA 94063
Pharmacist
910 MARSHALL ST
REDWOOD CITY, CA 94063
Pharmacist
910 MARSHALL ST
REDWOOD CITY, CA 94063
Respiratory Therapist, Registered
910 MARSHALL ST
REDWOOD CITY, CA 94063
Health Maintenance Organization
910 MARSHALL ST
REDWOOD CITY, CA 94063
Respiratory Therapist, Registered (Pulmonary Function Technologist)
910 MARSHALL ST
REDWOOD CITY, CA 94063
Pharmacist
910 MARSHALL ST
REDWOOD CITY, CA 94063
Respiratory Therapist, Registered (General Care)
910 MARSHALL ST
REDWOOD CITY, CA 94063
Pediatrics
910 MARSHALL ST
REDWOOD CITY, CA 94063
Pharmacist
910 MARSHALL ST, #118
REDWOOD CITY, CA 94063

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659804276, enumerated as an "individual" on April 10, 2017.

The provider is located at 910 MARSHALL ST REDWOOD CITY, CA 94063 and the phone number is (650) 299-2478.

Pharmacist with taxonomy code 183500000X.