WILLIAM J AU M.D.
NPI 1457375321
Psychiatry & Neurology - Neurology in Sacramento, CA

NPI Status: Active since July 26, 2006

Contact Information

2800 L ST
SUITE 500
SACRAMENTO, CA
ZIP 95816
Phone: (916) 454-6850
Fax: (916) 454-6852

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Neurology

About WILLIAM AU

This page provides the complete NPI Profile along with additional information for William Au, a provider established in Sacramento, California with a medical specialization in Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1457375321 assigned on July 2006. The practitioner's primary taxonomy code is 2084N0400X with license number G32757 (CA). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI
1457375321
Provider Name
WILLIAM J AU M.D.
Gender
Male
Entity Type
Individual
Location Address
2800 L ST SUITE 500 SACRAMENTO, CA 95816
Location Phone
(916) 454-6850
Location Fax
(916) 454-6852
Mailing Address
10470 OLD PLACERVILLE RD SUITE 100 SACRAMENTO, CA 95827
Mailing Phone
(800) 470-0071
Is Sole Proprietor?
No
Enumeration Date
07-26-2006
Last Update Date
07-07-2015
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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

Psychiatry & Neurology Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
License No.
G32757
License State
CA
Taxonomy Description
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
A89534MEDICARE UPIN (02)CA 
00G327570MEDICAID (05)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 1457375321, 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.

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 0 + 7 + 6 + 7 + 1 + 0 + 3 + 4 + 24 = 59

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.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1457375321.

Other Providers at the Same Location


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

Radiology (Radiation Oncology)
2800 L ST
SACRAMENTO, CA 95816
Radiology (Radiation Oncology)
2800 L ST, SUITE 10
SACRAMENTO, CA 95816
Student in an Organized Health Care Education/Training Program
2800 L ST, SUITE 450
SACRAMENTO, CA 95816
Pharmacist
2800 L ST, SUITE 450
SACRAMENTO, CA 95816
Hospice Care, Community Based
2800 L ST, SUITE 400
SACRAMENTO, CA 95816
Clinical Nurse Specialist (Medical-Surgical)
2800 L ST, #260
SACRAMENTO, CA 95816
Pharmacist
2800 L ST
SACRAMENTO, CA 95816
Internal Medicine (Hematology & Oncology)
2800 L ST, ROOM 420
SACRAMENTO, CA 95816
Registered Nurse
2800 L ST
SACRAMENTO, CA 95816
Psychiatry & Neurology (Neurology)
2800 L ST, SUITE 500
SACRAMENTO, CA 95816
Internal Medicine (Cardiovascular Disease)
2800 L ST, 6TH FLOOR
SACRAMENTO, CA 95816
Anesthesiology (Pain Medicine)
2800 L ST, SUITE 500
SACRAMENTO, CA 95816
Internal Medicine (Cardiovascular Disease)
2800 L ST, 6TH FLOOR
SACRAMENTO, CA 95816
Neurological Surgery
2800 L ST, SUITE 500
SACRAMENTO, CA 95816
Internal Medicine (Cardiovascular Disease)
2800 L ST, 6TH FLOOR
SACRAMENTO, CA 95816
Neurological Surgery
2800 L ST, SUITE 500
SACRAMENTO, CA 95816
Internal Medicine (Interventional Cardiology)
2800 L ST, 6TH FLOOR
SACRAMENTO, CA 95816
Radiology (Radiation Oncology)
2800 L ST, STE 10
SACRAMENTO, CA 95816
Internal Medicine (Cardiovascular Disease)
2800 L ST, 6TH FLOOR
SACRAMENTO, CA 95816
Internal Medicine (Cardiovascular Disease)
2800 L ST, 6TH FLOOR
SACRAMENTO, CA 95816

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1457375321, enumerated as an "individual" on July 26, 2006.

The provider is located at 2800 L ST SUITE 500 SACRAMENTO, CA 95816 and the phone number is (916) 454-6850.

Psychiatry & Neurology with taxonomy code 2084N0400X and a focus in Neurology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.