MRS. MARY ANN SHANNON RD. LD.
NPI 1245619493
Dietitian, Registered in Darien, IL

Active since May 20, 2015
1801 HOLLY AVE, DARIEN, IL 60561(630) 347-0526 Get Directions Write a Review

NPPES record last updated: May 20, 2015. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Female
  • Dietitian, Registered

About MARY ANN SHANNON

This page provides the complete NPI Profile along with additional information for Mary Ann Shannon, a provider established in Darien, Illinois with a medical specialization in Dietitian, Registered. The healthcare provider is registered in the NPI registry with number 1245619493 assigned on May 2015. The practitioner's primary taxonomy code is 133V00000X with license number 443568 (IL). The provider is registered as an individual and her NPI record was last updated 11 years ago.

NPI
1245619493
Provider Name
MRS. MARY ANN SHANNON RD. LD.
Gender
Female
Entity Type
Individual
Location Address
1801 HOLLY AVE DARIEN, IL 60561
Location Phone
(630) 347-0526
Mailing Address
1801 HOLLY AVE DARIEN, IL 60561
Mailing Phone
(630) 347-0526
Is Sole Proprietor?
Yes
Enumeration Date
05-20-2015
Last Update Date
05-20-2015
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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

Dietitian, Registered

Taxonomy Code
133V00000X
Type
Dietary & Nutritional Service Providers
License No.
443568
License State
IL
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.

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Therapy procedure for nutrition management, each 15 minutes

This is a 15-minute session focused on managing your nutrition. A professional will assess your dietary habits and provide personalized advice to improve your health. It can help manage weight, control chronic diseases, and promote overall wellbeing.

This service was performed 666 times for 120 patients

Therapy procedure reassessment for nutrition management, each 15 minutes

This is a process where a healthcare professional reviews your nutritional needs every 15 minutes. It's part of managing your diet to ensure optimal health. The review may involve adjusting your meal plans, evaluating your body's response to certain foods, and monitoring your overall nutrition status.

This service was performed 2,055 times for 333 patients

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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 1245619493, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
2
Unchanged
Pos 3
4
Doubled → 8
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
3
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 4 → 8 6 → 12 → 3 9 → 18 → 9 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 8 + 5 + 1 + 2 + 1 + 1 + 8 + 4 + 1 + 8 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1245619493.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1245619493, enumerated as an "individual" on May 20, 2015.

The provider is located at 1801 HOLLY AVE DARIEN, IL 60561 and the phone number is (630) 347-0526.

Dietitian, Registered with taxonomy code 133V00000X.