MARGARET ANNA SIMONDS RDN
NPI 1609687235
Dietitian, Registered - Nutrition, Obesity and Weight Management in Boston, MA

NPI Status: Active since January 14, 2025

Contact Information

732 HARRISON AVE
BOSTON, MA
ZIP 02118
Phone: (617) 638-7470

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  • Individual
  • Female
  • Dietitian, Registered
  • Nutrition, Obesity and Weight Management

About MARGARET SIMONDS

This page provides the complete NPI Profile along with additional information for Margaret Simonds, a provider established in Boston, Massachusetts with a medical specialization in Dietitian, Registered, focusing in nutrition, obesity and weight management . The healthcare provider is registered in the NPI registry with number 1609687235 assigned on January 2025. The practitioner's primary taxonomy code is 133VN1201X with license number LDN7079 (MA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1609687235
Provider Name
MARGARET ANNA SIMONDS RDN
Gender
Female
Entity Type
Individual
Location Address
732 HARRISON AVE BOSTON, MA 02118
Location Phone
(617) 638-7470
Mailing Address
8 DUSTIN ST APT 101 BRIGHTON, MA 02135
Mailing Phone
(413) 544-3338
Is Sole Proprietor?
No
Enumeration Date
01-14-2025
Last Update Date
01-14-2025
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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, Obesity and Weight Management

Taxonomy Code
133VN1201X
Type
Dietary & Nutritional Service Providers
License No.
LDN7079
License State
MA
Taxonomy Description
An individual who is a Board Certified Specialist for Obesity and Weight Management and educates, supports, and advocates for patients and clients to understand and manage their weight and associated risks through the use of nutritional, behavioral health, medical, surgical, pharmacotherapeutic, and exercise and physical activity interventions.

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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 1609687235, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
0
Doubled → 0
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
8
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
Check
5
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 6 → 12 → 3 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 0 + 9 + 1 + 2 + 8 + 1 + 4 + 2 + 6 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1609687235.

Other Providers at the Same Location


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

Internal Medicine (Medical Oncology)
732 HARRISON AVE, PRESTON-3
BOSTON, MA 02118
Internal Medicine (Cardiovascular Disease)
732 HARRISON AVE, 4TH FLOOR
BOSTON, MA 02118
Internal Medicine (Cardiovascular Disease)
732 HARRISON AVE, 4TH FLOOR
BOSTON, MA 02118
Internal Medicine (Hematology)
732 HARRISON AVE, 3RD FLOOR
BOSTON, MA 02118
Internal Medicine (Cardiovascular Disease)
732 HARRISON AVE, PRESTON, 3RD FLOOR
BOSTON, MA 02118
Nurse Practitioner
732 HARRISON AVE, PRESTON, 3RD FLOOR
BOSTON, MA 02118
Dietitian, Registered
732 HARRISON AVE, PRESTON FAMILY BLD, 2ND FL
BOSTON, MA 02118
Dietitian, Registered
732 HARRISON AVE, PRESTON 2
BOSTON, MA 02118
Internal Medicine (Cardiovascular Disease)
732 HARRISON AVE, PRESTON 4
BOSTON, MA 02118
General Acute Care Hospital
732 HARRISON AVE, SUITE 500
BOSTON, MA 02118
Physical Medicine & Rehabilitation
732 HARRISON AVE, PRESTON FIFTH FLOOR
BOSTON, MA 02118
Internal Medicine (Endocrinology, Diabetes & Metabolism)
732 HARRISON AVE, PRESTON, 2ND FLOOR
BOSTON, MA 02118
Surgery
732 HARRISON AVE, PRESTON 2
BOSTON, MA 02118
Physical Medicine & Rehabilitation
732 HARRISON AVE, F-511
BOSTON, MA 02118
Internal Medicine (Cardiovascular Disease)
732 HARRISON AVE, PRESTON 3RD FLOOR
BOSTON, MA 02118
Nurse Practitioner (Adult Health)
732 HARRISON AVE, PRESTON, 3RD FLOOR
BOSTON, MA 02118
Internal Medicine
732 HARRISON AVE, PRESTON 2ND FLOOR
BOSTON, MA 02118
Podiatrist (Foot Surgery)
732 HARRISON AVE, PRESTON 5TH FLOOR
BOSTON, MA 02118
Internal Medicine (Endocrinology, Diabetes & Metabolism)
732 HARRISON AVE
BOSTON, MA 02118
Thoracic Surgery (Cardiothoracic Vascular Surgery)
732 HARRISON AVE, 3RD FLOOR
BOSTON, MA 02118

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1609687235, enumerated as an "individual" on January 14, 2025.

The provider is located at 732 HARRISON AVE BOSTON, MA 02118 and the phone number is (617) 638-7470.

Dietitian, Registered with taxonomy code 133VN1201X and a focus in Nutrition, Obesity and Weight Management.