JUSTIN HENNEMAN M.D.
NPI 1376938472
Emergency Medicine in Roslyn, NY

Active since April 06, 2015
100 PORT WASHINGTON BLVD, EMERGENCY DEPARTMENT, ROSLYN, NY 11576(516) 562-6000 Get Directions Write a Review

NPPES record last updated: March 5, 2021. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Mar 5, 2021, Jul 5, 2019 (2 updates tracked since 2019).

  • Individual
  • Male
  • Emergency Medicine

About JUSTIN HENNEMAN

This page provides the complete NPI Profile along with additional information for Justin Henneman, a provider established in Roslyn, New York with a medical specialization in Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1376938472 assigned on April 2015. The practitioner's primary taxonomy code is 207P00000X with license number 298560 (NY). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1376938472
Provider Name
JUSTIN HENNEMAN M.D.
Gender
Male
Entity Type
Individual
Location Address
100 PORT WASHINGTON BLVD EMERGENCY DEPARTMENT ROSLYN, NY 11576
Location Phone
(516) 562-6000
Mailing Address
28 WOODRIDGE LN SEA CLIFF, NY 11579
Mailing Phone
(413) 454-4437
Is Sole Proprietor?
No
Enumeration Date
04-06-2015
Last Update Date
03-05-2021
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

Emergency Medicine

Taxonomy Code
207P00000X
Type
Allopathic & Osteopathic Physicians
License No.
298560
License State
NY
Taxonomy Description
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Reviews for JUSTIN HENNEMAN M.D.

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1376938472, 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 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
3
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
6
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
3
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 9 → 18 → 9 8 → 16 → 7 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 4 + 6 + 1 + 8 + 3 + 1 + 6 + 4 + 1 + 4 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1376938472.

Other Providers at the Same Location


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

Internal Medicine (Gastroenterology)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Anesthesiology
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Specialist
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Nurse Practitioner (Adult Health)
100 PORT WASHINGTON BLVD, SUITE 105
ROSLYN, NY 11576
Internal Medicine (Geriatric Medicine)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Specialist
100 PORT WASHINGTON BLVD, SUITE G03
ROSLYN, NY 11576
Specialist
100 PORT WASHINGTON BLVD, SUITE G03
ROSLYN, NY 11576
Specialist
100 PORT WASHINGTON BLVD, SUITE G03
ROSLYN, NY 11576
Anesthesiology
100 PORT WASHINGTON BLVD, NEW YORK CARDIOVASCULAR ANESTHESIOLOGISTS, P.C.
ROSLYN, NY 11576
Specialist
100 PORT WASHINGTON BLVD, SUITE GO3
ROSLYN, NY 11576
Pediatrics (Pediatric Cardiology)
100 PORT WASHINGTON BLVD, SUITE 108
ROSLYN, NY 11576
Pediatrics (Pediatric Cardiology)
100 PORT WASHINGTON BLVD, SUITE 108
ROSLYN, NY 11576
General Acute Care Hospital
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Internal Medicine (Cardiovascular Disease)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Internal Medicine (Cardiovascular Disease)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Internal Medicine (Cardiovascular Disease)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Internal Medicine (Cardiovascular Disease)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Internal Medicine (Interventional Cardiology)
100 PORT WASHINGTON BLVD, SUITE 105
ROSLYN, NY 11576
Internal Medicine (Cardiovascular Disease)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Physician Assistant (Medical)
100 PORT WASHINGTON BLVD, SUITE G03
ROSLYN, NY 11576

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1376938472, enumerated as an "individual" on April 06, 2015.

The provider is located at 100 PORT WASHINGTON BLVD EMERGENCY DEPARTMENT ROSLYN, NY 11576 and the phone number is (516) 562-6000.

Emergency Medicine with taxonomy code 207P00000X.