WEI-CHEN FENG MS, RD
NPI 1508106717
Dietitian, Registered - Nutrition, Renal in San Jose, CA

NPI Status: Active since February 25, 2013

Contact Information

2220 MOORPARK AVE
SAN JOSE, CA
ZIP 95128
Phone: (408) 885-5737
Fax: (408) 885-5741

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Dietitian, Registered
Nutrition, Renal

About WEI-CHEN FENG

This page provides the complete NPI Profile along with additional information for Wei-chen Feng, a provider established in San Jose, California with a medical specialization in Dietitian, Registered, focusing in nutrition, renal . The healthcare provider is registered in the NPI registry with number 1508106717 assigned on February 2013. The practitioner's primary taxonomy code is 133VN1005X with license number 886198 (CA). The provider is registered as an individual and her NPI record was last updated 13 years ago.

NPI: 1508106717
Provider Name: WEI-CHEN FENG MS, RD
Gender: Female
Entity Type: Individual
Location Address: 2220 MOORPARK AVE SAN JOSE, CA 95128
Location Phone: (408) 885-5737
Location Fax: (408) 885-5741
Mailing Address: 2220 MOORPARK AVE SAN JOSE, CA 95128
Mailing Phone: (408) 885-5737
Mailing Fax: (408) 885-5741
Is Sole Proprietor?: No
Enumeration Date: 02-25-2013
Last Update Date: 02-25-2013
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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 Nutrition, Renal
Taxonomy Code: 133VN1005X
Type: Dietary & Nutritional Service Providers
License No.: 886198
License State: CA
Taxonomy Description: An individual who is a Board Certified Specialist in Renal Nutrition and works directly with adult and/or pediatric patients with acute kidney injury, chronic kidney disease (CKD) stages 1-5, or receiving renal replacement therapies (dialysis/transplant) in a variety of settings, OR works indirectly in management, education, or research practice linked specifically to renal nutrition. The specialist in renal/nephrology nutrition is responsible for nutrition assessment, diagnosis, intervention, monitoring, and evaluation.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	133V00000X	Dietary & Nutritional Service Providers	Dietitian, Registered	886198 (CA)

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 1508106717, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 0

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 2

Check

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 0 → 0 1 → 2 6 → 12 → 3 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 2 + 0 + 1 + 2 + 7 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1508106717.