DR. WILLIAM HOWARD WONG PHARM.D.
NPI 1720149826
Pharmacist - Geriatric in San Rafael, CA

NPI Status: Active since December 12, 2006

Contact Information

99 MONTECILLO RD
SAN RAFAEL, CA
ZIP 94903
Phone: (415) 444-2047

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  • Individual
  • Male
  • Pharmacist
  • Geriatric

About WILLIAM WONG

This page provides the complete NPI Profile along with additional information for William Wong, a provider established in San Rafael, California with a medical specialization in Pharmacist, focusing in geriatric . The healthcare provider is registered in the NPI registry with number 1720149826 assigned on December 2006. The practitioner's primary taxonomy code is 1835G0303X with license number 25258 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1720149826
Provider Name
DR. WILLIAM HOWARD WONG PHARM.D.
Gender
Male
Entity Type
Individual
Location Address
99 MONTECILLO RD SAN RAFAEL, CA 94903
Location Phone
(415) 444-2047
Mailing Address
565 TENAYA DR TIBURON, CA 94920
Mailing Phone
(415) 435-3435
Is Sole Proprietor?
No
Enumeration Date
12-12-2006
Last Update Date
07-08-2007
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A pharmacist like William Wong 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 Geriatric

Taxonomy Code
1835G0303X
Type
Pharmacy Service Providers
License No.
25258
License State
CA
Taxonomy Description
A pharmacist who is certified in geriatric pharmacy practice is designated as a Certified Geriatric Pharmacist (CGP). To become certified, candidates are expected to be knowledgeable about principles of geriatric pharmacotherapy and the provision of pharmaceutical care to the elderly.

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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 1720149826, 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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
4
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
2
Doubled → 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 2 → 4 1 → 2 9 → 18 → 9 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 2 + 4 + 1 + 8 + 8 + 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 1720149826.

Other Providers at the Same Location


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

Registered Nurse
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Nurse Practitioner (Family)
99 MONTECILLO RD, PLASTIC SURGERY CLINIC, 1ST FLOOR
SAN RAFAEL, CA 94903
Nurse Practitioner (Adult Health)
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Nurse Practitioner (Adult Health)
99 MONTECILLO RD, SURGERY CLINIC, 2ND FLOOR
SAN RAFAEL, CA 94903
Nurse Practitioner (Family)
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Pharmacist
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Pharmacist
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Nurse Practitioner (Acute Care)
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Nurse Practitioner (Family)
99 MONTECILLO RD, DERMATOLOGY
SAN RAFAEL, CA 94903
Nurse Practitioner (Obstetrics & Gynecology)
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Nurse Practitioner (Adult Health)
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Pharmacist (Oncology)
99 MONTECILLO RD, MOB ONE INFUSION CLINIC
SAN RAFAEL, CA 94903
Nurse Practitioner (Obstetrics & Gynecology)
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Surgery
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Pediatrics
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Internal Medicine
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Otolaryngology
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Physical Medicine & Rehabilitation
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Orthopaedic Surgery
99 MONTECILLO RD
SAN RAFAEL, CA 94903
Psychiatry & Neurology (Psychiatry)
99 MONTECILLO RD
SAN RAFAEL, CA 94903

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720149826, enumerated as an "individual" on December 12, 2006.

The provider is located at 99 MONTECILLO RD SAN RAFAEL, CA 94903 and the phone number is (415) 444-2047.

Pharmacist with taxonomy code 1835G0303X and a focus in Geriatric.