ALEXANDER MARIANI RD, CDCES
NPI 1871463992
Dietitian, Registered in Bayville, NY

NPI Status: Active since November 05, 2025

Contact Information

5 TILDEAN LN
BAYVILLE, NY
ZIP 11709
Phone: (516) 880-4428

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  • Individual
  • Male
  • Dietitian, Registered

About ALEXANDER MARIANI

This page provides the complete NPI Profile along with additional information for Alexander Mariani, a provider established in Bayville, New York with a medical specialization in Dietitian, Registered. The healthcare provider is registered in the NPI registry with number 1871463992 assigned on November 2025. The practitioner's primary taxonomy code is 133V00000X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1871463992
Provider Name
ALEXANDER MARIANI RD, CDCES
Gender
Male
Entity Type
Individual
Location Address
5 TILDEAN LN BAYVILLE, NY 11709
Location Phone
(516) 880-4428
Mailing Address
5 TILDEAN LN BAYVILLE, NY 11709
Is Sole Proprietor?
No
Enumeration Date
11-05-2025
Last Update Date
11-05-2025
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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
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.

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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 1871463992, we treat the final digit (2) 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 78. The final step is to find the difference between that total and the next multiple of ten (80 - 78 = 2).

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
8
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
6
Unchanged
Pos 7
3
Doubled → 6
Pos 8
9
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
2
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 7 → 14 → 5 4 → 8 3 → 6 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 8 + 6 + 6 + 9 + 1 + 8 + 24 = 78

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

The next multiple of ten after 78 is 80. The difference is the calculated check digit.

80 - 78 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1871463992.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1871463992, enumerated as an "individual" on November 05, 2025.

The provider is located at 5 TILDEAN LN BAYVILLE, NY 11709 and the phone number is (516) 880-4428.

Dietitian, Registered with taxonomy code 133V00000X.