LEAH MARK INTEGRATIVE NUTRITION PLLC
NPI 1013537034
Dietitian, Registered in Huntington, NY
NPI Status: Active since April 20, 2020
Contact Information
44 GREEN ST STE 2
HUNTINGTON, NY
ZIP 11743
Phone: (516) 806-0045
Fax: (516) 861-0061
NPPES record last updated: October 29, 2025. Verified against the NPPES registry weekly; last sync: July 12, 2026.
Record update history: Mar 6, 2023, Apr 20, 2020 (2 updates tracked since 2020).
- Organization
- Dietitian, Registered
About LEAH MARK INTEGRATIVE NUTRITION PLLC
This page provides the complete NPI Profile along with additional information for Leah Mark Integrative Nutrition Pllc, a provider established in Huntington, New York operating as a Dietitian, Registered. The healthcare provider is registered in the NPI registry with number 1013537034 assigned on April 2020. The practitioner's primary taxonomy code is 133V00000X. The provider is registered as an organization and their NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Leah Mark Rd (Owner)
- NPI
- 1013537034
- Provider Name
- LEAH MARK INTEGRATIVE NUTRITION PLLC
- Other Name Type
- (6)
- Entity Type
- Organization
- Location Address
- 44 GREEN ST STE 2 HUNTINGTON, NY 11743
- Location Phone
- (516) 806-0045
- Location Fax
- (516) 861-0061
- Mailing Address
- 44 GREEN ST HUNTINGTON, NY 11743
- Mailing Phone
- (516) 200-1902
- Mailing Fax
- (516) 861-0061
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 04-20-2020
- Last Update Date
- 10-29-2025
- Code Navigator
Location Map
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.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
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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 1013537034, we treat the final digit (4) 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 46. The final step is to find the difference between that total and the next multiple of ten (50 - 46 = 4).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 46 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
HUNTINGTON, NY 11743
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1013537034, enumerated as an "organization" on April 20, 2020.
The provider is located at 44 GREEN ST STE 2 HUNTINGTON, NY 11743 and the phone number is (516) 806-0045.
Dietitian, Registered with taxonomy code 133V00000X.
