1. Home
  2. Directory
  3. New York
  4. Brooklyn
  5. Internal Medicine
  6. NPI Profile

DR. ELIEZER WEISS M.D.
NPI 1891939187
Internal Medicine - Gastroenterology in Brooklyn, NY

Active since April 30, 2009PECOS EnrolledAccepts Medicare Assignment
800 POLY PL RM 4-117, BROOKLYN, NY 11209(718) 836-6600 Get Directions Write a Review

NPPES record last updated: November 21, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 21, 2022, May 24, 2021, Mar 26, 2018 (3 updates tracked since 2018).

About Dr. Eliezer Weiss M.d. NPPES

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

DR. ELIEZER WEISS M.D. (NPI 1891939187) is an individual gastroenterology provider in Brooklyn, New York, licensed in New Jersey (25MA09695500) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Morristown Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1891939187
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ELIEZER WEISSCredential: M.D.
Location Address800 POLY PL RM 4-117Brooklyn, NY 11209-7104
Mailing AddressPo Box 416457Boston, MA 02241-6457 · (844) 362-1735 · Fax (973) 290-7495
Phone(718) 836-6600
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateApril 30, 2009
Last NPPES UpdateNovember 21, 20223 updates tracked since enumeration
NPPES CertifiedNovember 21, 2022
✔ NPI 1891939187 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 NJ · 25MA09695500
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.
800 POLY PL RM 4-117, Brooklyn, NY 11209
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1435 South St Ste 230AMorristown, NJ 07960-6422 · Phone (973) 971-7507 · Fax (973) 290-7130
Location 21125 US Highway 22 Ste 265Bridgewater, NJ 08807-2939 · Phone (973) 971-7507 · Fax (973) 290-7130

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

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. Eliezer Weiss M.d. 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 ID8123335601
PECOS Enrollment IDI20150916000535
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 9

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.
97 services65 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
80 services57 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.
77 services76 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.
76 services76 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.
68 services61 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
64 services64 patients

Hospital Affiliations CMS Care Compare 2

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

Morristown Medical Center

Acute Care Hospitals · Morristown, NJ
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310015
Location100 Madison AveMorristown, NJ 07960 · Morris County
Emergency services Birthing friendly

Overlook Medical Center

Acute Care Hospitals · Summit, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310051
Location99 Beauvoir AvenueSummit, NJ 07901 · Union County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11209 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.

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 Eliezer Weiss's NPI number?

The NPI number for Eliezer Weiss is 1891939187. It was assigned to this individual provider in the NPPES registry on April 30, 2009.

Where is Eliezer Weiss located?

Eliezer Weiss practices at 800 Poly Pl Rm 4-117, Brooklyn, NY 11209. The listed phone number is (718) 836-6600.

What is Eliezer Weiss's specialty?

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

Is Eliezer Weiss enrolled in Medicare?

Yes. Eliezer Weiss 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.

What insurance does Eliezer Weiss accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Eliezer Weiss as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Eliezer Weiss affiliated with any hospitals?

According to CMS data, Eliezer Weiss is affiliated with Morristown Medical Center and Overlook Medical Center.

When was this NPI record last updated?

The NPPES record for Eliezer Weiss was last updated on November 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.