MS. ROBYN MICHELLE ROCKWELL MHS, RDN, CSO
NPI 1437478849
Dietitian, Registered in Bethesda, MD

NPI Status: Active since May 25, 2010

Contact Information

4860 S PALMER RD BLDG 51
BETHESDA, MD
ZIP 20889
Phone: (301) 295-6755

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

Individual
Female
Dietitian, Registered

About ROBYN ROCKWELL

This page provides the complete NPI Profile along with additional information for Robyn Rockwell, a provider established in Bethesda, Maryland with a medical specialization in Dietitian, Registered. The healthcare provider is registered in the NPI registry with number 1437478849 assigned on May 2010. The practitioner's primary taxonomy code is 133V00000X with license number 1033038 (VA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1437478849
Provider Name: MS. ROBYN MICHELLE ROCKWELL MHS, RDN, CSO
Gender: Female
Entity Type: Individual
Location Address: 4860 S PALMER RD BLDG 51 BETHESDA, MD 20889
Location Phone: (301) 295-6755
Mailing Address: 4860 S PALMER RD BLDG 51 BETHESDA, MD 20889
Mailing Phone: (703) 216-9540
Is Sole Proprietor?: Yes
Enumeration Date: 05-25-2010
Last Update Date: 04-30-2025
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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
Taxonomy Code: 133V00000X
Type: Dietary & Nutritional Service Providers
License No.: 1033038
License State: VA
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.

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 1437478849, we treat the final digit (9) 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 81. The final step is to find the difference between that total and the next multiple of ten (90 - 81 = 9).

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 → 6

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 8

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 3 → 6 4 → 8 8 → 16 → 7 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 6 + 7 + 8 + 7 + 1 + 6 + 8 + 8 + 24 = 81

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

The next multiple of ten after 81 is 90. The difference is the calculated check digit.

90 - 81 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1437478849.