FIVE TOWNS GASTROENTEROLOGY
NPI 1841608601
Internal Medicine - Gastroenterology in Cedarhurst, NY

NPI Status: Active since July 24, 2014

Contact Information

657 CENTRAL AVE
SUITE 2
CEDARHURST, NY
ZIP 11516
Phone: (516) 374-0670
Fax: (516) 569-7140

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  • Organization
  • Internal Medicine
  • Gastroenterology
  • CLIA Number: 33D2266647
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 07-16-2026

About FIVE TOWNS GASTROENTEROLOGY

This page provides the complete NPI Profile along with additional information for Five Towns Gastroenterology, an internist established in Cedarhurst, New York operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1841608601 assigned on July 2014. The practitioner's primary taxonomy code is 207RG0100X. The provider is registered as an organization and their NPI record was last updated 9 years ago. Five Towns Gastroenterology operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Jay S Fenster Md (Authorized Rep/owner)

NPI
1841608601
Provider Name
FIVE TOWNS GASTROENTEROLOGY
Entity Type
Organization
Location Address
657 CENTRAL AVE SUITE 2 CEDARHURST, NY 11516
Location Phone
(516) 374-0670
Location Fax
(516) 569-7140
Mailing Address
657 CENTRAL AVE SUITE 2 CEDARHURST, NY 11516
Mailing Phone
(516) 374-0670
Mailing Fax
(516) 569-7140
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-24-2014
Last Update Date
01-19-2017
Code Navigator

An internist like Five Towns Gastroenterology 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
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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

JAY S FENSTER MD

Authorized Official Title
AUTHORIZED REP/OWNER
Authorized Official Phone
(516) 374-0670

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
G100158482MEDICARE PIN (08)NY 
A100107305MEDICARE PIN (08)NY 

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
33D2266647
Facility Type
Physician Office
Certificate Effective Date
July 17, 2024
Certificate Expiration Date
July 16, 2026
Laboratory Director
DR. JOSEPH ILASI
Certificate Type
Certificate of Compliance
Certificate Type Description
This CLIA certificate is issued to Five Towns Gastroenterology after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements. This type of certificate is issued to laboratories that perform nonwaived (moderate and/or high complexity) testing.

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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 1841608601, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
0
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
6
Unchanged
Pos 9
0
Doubled → 0
Check
1
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 6 → 12 → 3 8 → 16 → 7 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 1 + 2 + 0 + 1 + 6 + 6 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1841608601.

Other Providers at the Same Location


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

Internal Medicine
657 CENTRAL AVE
CEDARHURST, NY 11516
Physical Medicine & Rehabilitation
657 CENTRAL AVE, LOWER LEVEL
CEDARHURST, NY 11516
Internal Medicine (Gastroenterology)
657 CENTRAL AVE
CEDARHURST, NY 11516
Physician Assistant
657 CENTRAL AVE
CEDARHURST, NY 11516
Internal Medicine (Gastroenterology)
657 CENTRAL AVE
CEDARHURST, NY 11516
Physician Assistant
657 CENTRAL AVE
CEDARHURST, NY 11516
Chiropractor
657 CENTRAL AVE
CEDARHURST, NY 11516
Chiropractor
657 CENTRAL AVE, LOWER LEVEL
CEDARHURST, NY 11516
Dentist (Periodontics)
657 CENTRAL AVE
CEDARHURST, NY 11516
Physical Therapist
657 CENTRAL AVE
CEDARHURST, NY 11516
Orthopaedic Surgery
657 CENTRAL AVE
CEDARHURST, NY 11516
Specialist
657 CENTRAL AVE, SUITE 205
CEDARHURST, NY 11516
Physical Medicine & Rehabilitation
657 CENTRAL AVE
CEDARHURST, NY 11516
Orthopaedic Surgery
657 CENTRAL AVE, 1ST FLOOR
CEDARHURST, NY 11516
Physical Therapist
657 CENTRAL AVE
CEDARHURST, NY 11516
Physical Therapy Assistant
657 CENTRAL AVE
CEDARHURST, NY 11516
Orthopaedic Surgery
657 CENTRAL AVE
CEDARHURST, NY 11516
Anesthesiology
657 CENTRAL AVE, 2ND FLOOR
CEDARHURST, NY 11516
Dentist (Periodontics)
657 CENTRAL AVE
CEDARHURST, NY 11516
Internal Medicine (Gastroenterology)
657 CENTRAL AVE
CEDARHURST, NY 11516

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841608601, enumerated as an "organization" on July 24, 2014.

The provider is located at 657 CENTRAL AVE SUITE 2 CEDARHURST, NY 11516 and the phone number is (516) 374-0670.

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

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.