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

GASTROENTEROLOGY ASSOCIATES OF BROOKLYN PLLC
NPI 1821427964
Internal Medicine - Gastroenterology in Brooklyn, NY

Active since November 08, 2013CLIA 33D2077376 · Certificate of Compliance
1723 E 12TH ST, BROOKLYN, NY 11229(718) 336-3900(718) 336-3990 Get Directions Write a Review

NPPES record last updated: November 27, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Gastroenterology Associates Of Brooklyn Pllc NPPES

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

GASTROENTEROLOGY ASSOCIATES OF BROOKLYN PLLC (NPI 1821427964) is a healthcare organization registered as a gastroenterology in Brooklyn, New York and active in the NPI registry since November 2013. The organization holds a CLIA Certificate of Compliance certificate valid through March 26, 2027 and lists Ian Wall, Owner, as its authorized official.

NPPES Registry Identity

NPI1821427964
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameGASTROENTEROLOGY ASSOCIATES OF BROOKLYN PLLC
Location Address1723 E 12TH STBrooklyn, NY 11229-1069
Mailing Address1723 E 12th StBrooklyn, NY 11229-1069 · (718) 336-3900 · Fax (718) 336-3990
Phone(718) 336-3900
Fax(718) 336-3990
Organization SubpartNo
Authorized OfficialIan WallOwner · (718) 336-3900
Enumeration DateNovember 8, 2013
Last NPPES UpdateNovember 27, 2013
✔ NPI 1821427964 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
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.
1723 E 12TH ST, Brooklyn, NY 11229
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gastroenterology Associates Of Brooklyn Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

34

Medicare enrollment records show 34 clinicians reassign Medicare billing to Gastroenterology Associates Of Brooklyn PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 24 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Gastroenterology16
Anesthesiology10
Pathology3
Certified Registered Nurse Anesthetist (CRNA)2
Dermatology1
Family Practice1
Psychiatry1

Nearest to this location (20)

See all 34
Rabin Rahmani, M.D.
Gastroenterology
NPI 1457514044
1723 E 12TH ST
Brooklyn, NY 11229
(718) 336-3900
✔ PECOS✔ Accepts MedicareSame address
Nison Badalov, M.D.
Gastroenterology
NPI 1417141664
902 QUENTIN RD SEVENTH FLOOR
Brooklyn, NY 11223
(718) 336-3900
✔ PECOS✔ Accepts Medicare0.2 mi
Pierre Hindy, M.D.
Gastroenterology
NPI 1164605903
902 QUENTIN RD
Brooklyn, NY 11223
(718) 336-3900
✔ PECOS✔ Accepts Medicare0.2 mi
Ian Michael Wall, D.O.
Gastroenterology
NPI 1528170792
902 QUENTIN RD SEVENTH FLOOR
Brooklyn, NY 11223
(718) 336-3900
✔ PECOS✔ Accepts Medicare0.2 mi
Judah Horowitz, MD
Gastroenterology
NPI 1093235103
902 QUENTIN RD STE 701
Brooklyn, NY 11223
(718) 336-3900
✔ PECOS✔ Accepts Medicare0.2 mi
Kevin Tin, M.D.
Gastroenterology
NPI 1174812044
902 QUENTIN RD STE 701
Brooklyn, NY 11223
(718) 336-3900
✔ PECOS0.2 mi
Tamara Sabzanova, MD
Anesthesiology
NPI 1508809351
2177 65TH ST FL 2
Brooklyn, NY 11204
(718) 795-7407
✔ PECOS1.2 mi
Andrew Davy, MD
Anesthesiology
NPI 1891757274
1513 VOORHIES AVE
Brooklyn, NY 11235
(718) 377-8877
✔ PECOS✔ Accepts Medicare1.5 mi
Alexander Brodsky, MD
Gastroenterology
NPI 1396781332
8622 BAY PKWY
Brooklyn, NY 11214
(718) 333-2121
✔ PECOS1.8 mi
Diana Teper, DO
Family Practice
NPI 1558383489
8622 BAY PKWY
Brooklyn, NY 11214
(718) 333-2121
✔ PECOS1.8 mi
Konstantin Vaizman, M.D.
Gastroenterology
NPI 1639268105
8622 BAY PKWY STE 1
Brooklyn, NY 11214
(718) 333-2020
✔ PECOS✔ Accepts Medicare1.8 mi
Richard Apple, MD
Anesthesiology
NPI 1336131739
22 HARBOR DR
Brooklyn, NY 11234
(316) 553-0505
✔ PECOS✔ Accepts Medicare2.4 mi
Zinaida Lyuboff, MD
Psychiatry
NPI 1003822628
135 OCEAN PKWY SUITE 1U
Brooklyn, NY 11218
(718) 614-6167
✔ PECOS2.8 mi
Kayane Hanna-Hindy, MD
Gastroenterology
NPI 1962664144
699 92ND ST
Brooklyn, NY 11228
(718) 567-1403
✔ PECOS✔ Accepts Medicare3.3 mi
Petr Sabzanov, M.D.
Anesthesiology
NPI 1760484505
699 92ND ST VICTORY MEMORIAL HOSPITAL
Brooklyn, NY 11228
(718) 567-1234
✔ PECOS✔ Accepts Medicare3.3 mi
David Chang, M.D.
Anesthesiology
NPI 1992970941
1 BROOKDALE PLZ DEPARTMENT OF ANESTHESIOLOGY
Brooklyn, NY 11212
(718) 240-5356
✔ PECOS✔ Accepts Medicare4.1 mi
Cynthia Quainoo, MD
Gastroenterology
NPI 1497916837
1 BROOKDALE PLZ
Brooklyn, NY 11212
(718) 240-6025
✔ PECOS✔ Accepts Medicare4.1 mi
Ashraf Samaan, M.D.
Anesthesiology
NPI 1437104437
1 BROOKDALE PLZ
Brooklyn, NY 11212
(718) 240-5353
✔ PECOS✔ Accepts Medicare4.1 mi
Jayalakshmi Harid, M.D.
Anesthesiology
NPI 1538102389
1 BROOKDALE PLAZA
Brooklyn, NY 11212
(718) 240-5356
✔ PECOS✔ Accepts Medicare4.2 mi
Zvika J. Schreiber, MD
Pathology
NPI 1891966693
1 EDGEWATER ST 1ST FLOOR LABRATORY
Staten Island, NY 10305
(718) 226-4130
✔ PECOS✔ Accepts Medicare5.7 mi
See all 34 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 33D2077376

Gastroenterology Associates Of Brooklyn PLLC · Brooklyn, NY
Active · expires Mar 26, 2027
CLIA Number33D2077376
Laboratory TypePhysician Office
Certificate Effective DateMay 20, 2016
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Zvika J. Schreiber
Laboratory Phone(718) 336-3900
Laboratory LocationGastroenterology Associates Of Brooklyn PLLC9921 4th Ave, Lower Level, Brooklyn, NY 11209
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Gastroenterology Associates Of Brooklyn PLLC's NPI number?

The NPI number for Gastroenterology Associates Of Brooklyn PLLC is 1821427964. It was assigned to this organization in the NPPES registry on November 8, 2013.

Where is Gastroenterology Associates Of Brooklyn PLLC located?

Gastroenterology Associates Of Brooklyn PLLC is located at 1723 E 12th St, Brooklyn, NY 11229. The listed phone number is (718) 336-3900.

What is Gastroenterology Associates Of Brooklyn PLLC's specialty?

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

Is Gastroenterology Associates Of Brooklyn PLLC enrolled in Medicare?

Yes. Gastroenterology Associates Of Brooklyn PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gastroenterology Associates Of Brooklyn PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 34 clinicians in 7 Medicare specialties reassign their Medicare billing to Gastroenterology Associates Of Brooklyn PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Gastroenterology (16), Anesthesiology (10) and Pathology (3). Of these, 1 practice at this address and 24 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Gastroenterology Associates Of Brooklyn PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 33D2077376) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Gastroenterology Associates Of Brooklyn PLLC was last updated on November 27, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.