JOEY AU R.D.
NPI 1992860357
Dietitian, Registered in Walnut Creek, CA

NPI Status: Active since December 26, 2006

Contact Information

1425 S MAIN ST
WALNUT CREEK, CA
ZIP 94596
Phone: (925) 295-5420

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  • Individual
  • Female
  • Dietitian, Registered

About JOEY AU

This page provides the complete NPI Profile along with additional information for Joey Au, a provider established in Walnut Creek, California with a medical specialization in Dietitian, Registered. The healthcare provider is registered in the NPI registry with number 1992860357 assigned on December 2006. The practitioner's primary taxonomy code is 133V00000X with license number 892538 (CA). The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI
1992860357
Provider Name
JOEY AU R.D.
Gender
Female
Entity Type
Individual
Location Address
1425 S MAIN ST WALNUT CREEK, CA 94596
Location Phone
(925) 295-5420
Mailing Address
1425 S MAIN ST WALNUT CREEK, CA 94596
Mailing Phone
(925) 295-5420
Is Sole Proprietor?
No
Enumeration Date
12-26-2006
Last Update Date
12-30-2021
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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

Dietitian, Registered

Taxonomy Code
133V00000X
Type
Dietary & Nutritional Service Providers
License No.
892538
License State
CA
Taxonomy Description
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.

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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 1992860357, 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
9
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
2
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
6
Unchanged
Pos 7
0
Doubled → 0
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 9 → 18 → 9 8 → 16 → 7 0 → 0 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 8 + 2 + 1 + 6 + 6 + 0 + 3 + 1 + 0 + 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 1992860357.

Other Providers at the Same Location


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

Nurse Practitioner (Adult Health)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Practitioner (Adult Health)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Practitioner (Women's Health)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Practitioner (Pediatrics)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Pathology (Anatomic Pathology & Clinical Pathology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Practitioner (Gerontology)
1425 S MAIN ST, MOB 3RD FLOOR SURGERY CLINIC
WALNUT CREEK, CA 94596
Psychiatry & Neurology (Neurology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine
1425 S MAIN ST
WALNUT CREEK, CA 94596
Pediatrics (Neonatal-Perinatal Medicine)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine (Hematology & Oncology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Podiatrist
1425 S MAIN ST
WALNUT CREEK, CA 94596
Orthopaedic Surgery
1425 S MAIN ST
WALNUT CREEK, CA 94596
Preventive Medicine (Occupational Medicine)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Podiatrist
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine
1425 S MAIN ST
WALNUT CREEK, CA 94596
Surgery
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine
1425 S MAIN ST
WALNUT CREEK, CA 94596
Emergency Medicine
1425 S MAIN ST
WALNUT CREEK, CA 94596
Pediatrics (Pediatric Endocrinology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine (Nephrology)
1425 S MAIN ST
WALNUT CREEK, CA 94596

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1992860357, enumerated as an "individual" on December 26, 2006.

The provider is located at 1425 S MAIN ST WALNUT CREEK, CA 94596 and the phone number is (925) 295-5420.

Dietitian, Registered with taxonomy code 133V00000X.