MICHELLE SIRMONS RD, CSSD
NPI 1639763337
Dietitian, Registered - Nutrition, Sports Dietetics in Chandler, AZ

NPI Status: Active since February 23, 2021

Contact Information

871 W ORIOLE WAY
CHANDLER, AZ
ZIP 85286
Phone: (951) 733-9555

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  • Individual
  • Female
  • Dietitian, Registered
  • Nutrition, Sports Dietetics

About MICHELLE SIRMONS

This page provides the complete NPI Profile along with additional information for Michelle Sirmons, a provider established in Chandler, Arizona with a medical specialization in Dietitian, Registered, focusing in nutrition, sports dietetics . The healthcare provider is registered in the NPI registry with number 1639763337 assigned on February 2021. The practitioner's primary taxonomy code is 133VN1501X with license number 1053921 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1639763337
Provider Name
MICHELLE SIRMONS RD, CSSD
Other Name
MICHELLE VARGAS RD, CSSD
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
871 W ORIOLE WAY CHANDLER, AZ 85286
Location Phone
(951) 733-9555
Mailing Address
871 W ORIOLE WAY CHANDLER, AZ 85286
Mailing Phone
(951) 733-9555
Is Sole Proprietor?
Yes
Enumeration Date
02-23-2021
Last Update Date
02-23-2021
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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 Nutrition, Sports Dietetics

Taxonomy Code
133VN1501X
Type
Dietary & Nutritional Service Providers
License No.
1053921
License State
CA
Taxonomy Description
An individual who is a Board Certified Specialist in Sports Dietetics and applies evidence-based nutrition knowledge in exercise and sports. RDNs specializing in sports dietetics assess, educate, and counsel athletes and active individuals. They design, implement, and manage safe and effective nutrition strategies that enhance lifelong health, fitness, and optimal performance.

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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 1639763337, 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 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
6
Unchanged
Pos 3
3
Doubled → 6
Pos 4
9
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
6
Unchanged
Pos 7
3
Doubled → 6
Pos 8
3
Unchanged
Pos 9
3
Doubled → 6
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 3 → 6 7 → 14 → 5 3 → 6 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 1 + 4 + 6 + 6 + 3 + 6 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1639763337.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639763337, enumerated as an "individual" on February 23, 2021.

The provider is located at 871 W ORIOLE WAY CHANDLER, AZ 85286 and the phone number is (951) 733-9555.

Dietitian, Registered with taxonomy code 133VN1501X and a focus in Nutrition, Sports Dietetics.