Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. JAY SAMUEL FENSTER MD
NPI 1467434126
Internal Medicine - Gastroenterology in Cedarhurst, NY

Q: What is Jay Fenster's NPI number?

The NPI number for Jay Fenster is 1467434126. It was assigned to this individual provider in the NPPES registry on November 17, 2005.

Q: What is Jay Fenster's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Jay Fenster was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 17, 2005PECOS Enrolled

25.78/100

CMS Quality Rating

657 CENTRAL AVE, CEDARHURST, NY 11516(516) 374-0670(516) 295-0648 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Jay Samuel Fenster Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JAY SAMUEL FENSTER MD (NPI 1467434126) is an individual gastroenterology provider in Cedarhurst, New York, licensed in New York (174304) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai South Nassau, and is a graduate of State University Of New York Downstate Medical Center (1986).

NPPES Registry Identity

NPI1467434126

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. JAY SAMUEL FENSTERCredential: MD

Location Address657 CENTRAL AVECedarhurst, NY 11516-2320

Mailing Address6 Copperbeech LnLawrence, NY 11559-2606 · (516) 569-7367

Phone(516) 374-0670

Fax(516) 295-0648

Sole ProprietorNo

Medical School CMSState University Of New York Downstate Medical CenterGraduated 1986

Enumeration DateNovember 17, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1467434126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in NY · 174304

Definition

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.

657 CENTRAL AVE, Cedarhurst, NY 11516

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jay Samuel Fenster Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3072799717

PECOS Enrollment IDI20110516000167

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

916 services419 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

160 services157 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

134 services134 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

131 services119 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

131 services128 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

118 services85 patients

Stool analysis for blood, by peroxidase activity 82272

A stool analysis for blood, by peroxidase activity, is a test to detect blood in your stool. This test helps identify bleeding in the digestive tract. It involves collecting a stool sample, which is then checked for the presence of blood using a chemical reaction.

99 services94 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

74 services66 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

41 services41 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

31 services31 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare 43251

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

22 services22 patients

Biopsy of lower large bowel using a flexible endoscope 45331

A biopsy of the lower large bowel involves using a flexible tube with a camera (endoscope) to examine this part of your digestive tract. Small tissue samples may be taken for further examination to detect any abnormalities.

14 services14 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mount Sinai South Nassau

Acute Care Hospitals · Oceanside, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330198

LocationOne Healthy WayOceanside, NY 11572 · Nassau County

Emergency services Birthing friendly

St John's Episcopal Hospital At South Shore

Acute Care Hospitals · Far Rockaway, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330395

Location327 Beach 19th StreetFar Rockaway, NY 11691 · Queens County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11516 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

25.78/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

Cost

85.94

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JONATHAN ZINBERG MD

Internal Medicine (Gastroenterology)

657 CENTRAL AVE
CEDARHURST, NY 11516

Nassau County (516) 374-0670

MARC FENSTER MD

Internal Medicine (Gastroenterology)

657 CENTRAL AVE
CEDARHURST, NY 11516

Nassau County (516) 374-5570

KERRI-ANN GIAMBRUNO PA-C

Physician Assistant

657 CENTRAL AVE
CEDARHURST, NY 11516

Nassau County (516) 789-2396

MARIO E TORRENTS MD

Physical Medicine & Rehabilitation

657 CENTRAL AVE, LOWER LEVEL
CEDARHURST, NY 11516

Nassau County (516) 295-5760

SOUTH ISLAND ORTHOPEDICS, P.C.

Orthopaedic Surgery

657 CENTRAL AVE
CEDARHURST, NY 11516

Nassau County (516) 295-0111

DIEGO EMANUEL CONTRERAS

Physical Therapy Assistant

657 CENTRAL AVE
CEDARHURST, NY 11516

Nassau County (516) 812-9575

ERIC L FREEMAN MD

Orthopaedic Surgery

657 CENTRAL AVE, 1ST FLOOR
CEDARHURST, NY 11516

Nassau County (516) 295-0111

HAAS CHIROPRACTIC P.C

Chiropractor

657 CENTRAL AVE, LOWER LEVEL
CEDARHURST, NY 11516

Nassau County (516) 569-6305

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jay Fenster's NPI number?

The NPI number for Jay Fenster is 1467434126. It was assigned to this individual provider in the NPPES registry on November 17, 2005.

Where is Jay Fenster located?

Jay Fenster practices at 657 Central Ave, Cedarhurst, NY 11516. The listed phone number is (516) 374-0670.

What is Jay Fenster's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Jay Fenster enrolled in Medicare?

Yes. Jay Fenster is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Jay Fenster affiliated with any hospitals?

According to CMS data, Jay Fenster is affiliated with Mount Sinai South Nassau and St John's Episcopal Hospital At South Shore.

When was this NPI record last updated?

The NPPES record for Jay Fenster was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.