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DR. ZACHARY R. MARWIL MD
NPI 1609002229
Internal Medicine - Gastroenterology in Wantagh, NY

Active since June 10, 2009PECOS EnrolledAccepts Medicare Assignment
73.38/100
CMS Quality Rating
3019 MERRICK RD, WANTAGH, NY 11793(516) 785-8075(516) 785-8139 Get Directions Write a Review

NPPES record last updated: March 22, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 22, 2021, Sep 18, 2018 (2 updates tracked since 2018).

About Dr. Zachary R. Marwil Md NPPES

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

DR. ZACHARY R. MARWIL MD (NPI 1609002229) is an individual gastroenterology provider in Wantagh, New York, licensed in New York (268414) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Mercy Medical Center, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1609002229
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ZACHARY R. MARWILCredential: MD
Location Address3019 MERRICK RDWantagh, NY 11793-4329
Mailing Address3019 Merrick RdWantagh, NY 11793-4329 · (516) 785-8075 · Fax (516) 785-8139
Phone(516) 785-8075
Fax(516) 785-8139
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateJune 10, 2009
Last NPPES UpdateMarch 22, 20212 updates tracked since enumeration
NPPES CertifiedMarch 22, 2021
✔ NPI 1609002229 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 · 268414
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.
3019 MERRICK RD, Wantagh, NY 11793
Open in Google Maps ↗

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. Zachary R. Marwil 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 ID4587897376
PECOS Enrollment IDI20140501001262
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 10

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.
257 services195 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
114 services114 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.
98 services95 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.
78 services77 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.
68 services68 patients
Diagnostic exam of large bowel using a flexible endoscope 45378
This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.
32 services32 patients

Hospital Affiliations CMS Care Compare

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

Mercy Medical Center

Acute Care Hospitals · Rockville Centre, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330259
Location1000 North Village AvenueRockville Centre, NY 11570 · Nassau County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11793 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.

73.38/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.27
Improvement Activities40
Cost58.92

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
100%2,183 patients5/55-star benchmark: 100%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
88%165 patients4/55-star benchmark: 98%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
38%160 patients2/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
84%1,184 patients4/55-star benchmark: 100%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
84%1,184 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 3

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

ARTHUR BOSHNACK M.D.
Specialist
3019 MERRICK RD
WANTAGH, NY 11793
Nassau County (516) 785-8075
GASTROINTESTINAL SPECIALIST OF LONG ISLAND, P.C.
Specialist
3019 MERRICK RD
WANTAGH, NY 11793
Nassau County (516) 785-8075
JEFFREY S. NOVAK M.D.
Specialist
3019 MERRICK RD
WANTAGH, NY 11793
Nassau County (516) 785-8075

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 Zachary Marwil's NPI number?

The NPI number for Zachary Marwil is 1609002229. It was assigned to this individual provider in the NPPES registry on June 10, 2009.

Where is Zachary Marwil located?

Zachary Marwil practices at 3019 Merrick Rd, Wantagh, NY 11793. The listed phone number is (516) 785-8075.

What is Zachary Marwil's specialty?

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

Is Zachary Marwil enrolled in Medicare?

Yes. Zachary Marwil 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 Zachary Marwil affiliated with any hospitals?

According to CMS data, Zachary Marwil is affiliated with Mercy Medical Center.

When was this NPI record last updated?

The NPPES record for Zachary Marwil was last updated on March 22, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.