NASSAU GASTROENTEROLOGY ASSOCIATES, P.C.
NPI 1144225616
Internal Medicine - Gastroenterology in Great Neck, NY

NPI Status: Active since June 20, 2005

Contact Information

1000 NORTHERN BLVD
STE 140
GREAT NECK, NY
ZIP 11021
Phone: (516) 466-2340
Fax: (516) 829-6421

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  • Organization
  • Internal Medicine
  • Gastroenterology

About NASSAU GASTROENTEROLOGY ASSOCIATES, P.C.

This page provides the complete NPI Profile along with additional information for Nassau Gastroenterology Associates, P.c., an internist established in Great Neck, New York operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1144225616 assigned on June 2005. The practitioner's primary taxonomy code is 207RG0100X. The provider is registered as an organization and their NPI record was last updated 4 years 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. Seymour Katz M.d. (Owner)

NPI
1144225616
Provider Name
NASSAU GASTROENTEROLOGY ASSOCIATES, P.C.
Entity Type
Organization
Location Address
1000 NORTHERN BLVD STE 140 GREAT NECK, NY 11021
Location Phone
(516) 466-2340
Location Fax
(516) 829-6421
Mailing Address
1000 NORTHERN BLVD STE 140 GREAT NECK, NY 11021
Mailing Phone
(516) 466-2340
Mailing Fax
(516) 829-6421
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-20-2005
Last Update Date
07-21-2022
Code Navigator

An internist like Nassau Gastroenterology Associates, P.c. is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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

Internal Medicine Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
License State
NY
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. SEYMOUR KATZ M.D.

Authorized Official Title
OWNER
Authorized Official Phone
(516) 466-2340

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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 1144225616, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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
1
Unchanged
Pos 3
4
Doubled → 8
Pos 4
4
Unchanged
Pos 5
2
Doubled → 4
Pos 6
2
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
6
Unchanged
Pos 9
1
Doubled → 2
Check
6
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 4 → 8 2 → 4 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 8 + 4 + 4 + 2 + 1 + 0 + 6 + 2 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1144225616.

Other Providers at the Same Location


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

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Internal Medicine (Cardiovascular Disease)
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Internal Medicine (Cardiovascular Disease)
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Specialist
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Dentist (Oral and Maxillofacial Surgery)
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Physical Medicine & Rehabilitation
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Pediatrics
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GREAT NECK, NY 11021
Internal Medicine (Endocrinology, Diabetes & Metabolism)
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GREAT NECK, NY 11021
Internal Medicine (Sleep Medicine)
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GREAT NECK, NY 11021
Specialist
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Internal Medicine
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Internal Medicine (Cardiovascular Disease)
1000 NORTHERN BLVD, SUITE 120
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Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1144225616, enumerated as an "organization" on June 20, 2005.

The provider is located at 1000 NORTHERN BLVD STE 140 GREAT NECK, NY 11021 and the phone number is (516) 466-2340.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.