ALIZA NATALIE HACKMYER MS, RDN
NPI 1477403129
Dietitian, Registered - Nutrition, Obesity and Weight Management in New York, NY
NPI Status: Active since February 02, 2026
Contact Information
121 MADISON AVE APT 5E
NEW YORK, NY
ZIP 10016
Phone: (914) 393-9281
- Individual
- Female
- Dietitian, Registered
- Nutrition, Obesity and Weight Management
About ALIZA HACKMYER
This page provides the complete NPI Profile along with additional information for Aliza Hackmyer, a provider established in New York, New York 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 1477403129 assigned on February 2026. The practitioner's primary taxonomy code is 133VN1201X. The provider is registered as an individual and her NPI record was last updated February 2026.
- NPI
- 1477403129
- Provider Name
- ALIZA NATALIE HACKMYER MS, RDN
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 121 MADISON AVE APT 5E NEW YORK, NY 10016
- Location Phone
- (914) 393-9281
- Mailing Address
- 121 MADISON AVE APT 5E NEW YORK, NY 10016
- Mailing Phone
- (914) 393-9281
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-02-2026
- Last Update Date
- 02-02-2026
- 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 Nutrition, Obesity and Weight Management
- Taxonomy Code
- 133VN1201X
- Type
- Dietary & Nutritional Service Providers
- License State
- NY
- 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 1477403129, 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 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.
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 61 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1477403129, enumerated as an "individual" on February 02, 2026.
The provider is located at 121 MADISON AVE APT 5E NEW YORK, NY 10016 and the phone number is (914) 393-9281.
Dietitian, Registered with taxonomy code 133VN1201X and a focus in Nutrition, Obesity and Weight Management.
