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MOUNT SINAI BROOKLYN HEIGHTS
NPI 1255719563
Internal Medicine in Brooklyn, NY

Active since May 07, 2015CLIA 33D2052306 · Waiver
300 CADMAN PLAZA WEST, BROOKLYN, NY 11201(929) 210-6000(929) 210-6001 Get Directions Write a Review

NPPES record last updated: July 29, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mount Sinai Brooklyn Heights NPPES

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

MOUNT SINAI BROOKLYN HEIGHTS (NPI 1255719563) is a healthcare organization registered as an internal medicine in Brooklyn, New York and active in the NPI registry since May 2015. The organization holds a CLIA Waiver certificate valid through March 26, 2027 and lists Crystal Macneill, Vice President, Cbo Director, as its authorized official.

NPPES Registry Identity

NPI1255719563
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Location Address300 CADMAN PLAZA WESTBrooklyn, NY 11201
Mailing Address150 East 42nd Street, 10th FloorNew York, NY 10017 · (646) 605-8119 · Fax (646) 605-3029
Phone(929) 210-6000
Fax(929) 210-6001
Organization SubpartNo
Authorized OfficialCrystal MacneillVice President, Cbo Director · (646) 605-8112
Enumeration DateMay 7, 2015
Last NPPES UpdateJuly 29, 2015
✔ NPI 1255719563 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 14

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedAllergy & ImmunologyTaxonomy 207K00000X
Also ListedAnesthesiologyTaxonomy 207L00000X
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedObstetrics & GynecologyTaxonomy 207V00000X
Also ListedOphthalmologyTaxonomy 207W00000X
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X
Also ListedPediatricsTaxonomy 208000000X
Also ListedRadiology · Radiological PhysicsTaxonomy 2085R0205X
Also ListedSurgeryTaxonomy 208600000X
Also ListedUrologyTaxonomy 208800000X
Also ListedGeneral PracticeTaxonomy 208D00000X
Also ListedClinic/Center · PodiatricTaxonomy 261QP1100X
300 CADMAN PLAZA WEST, Brooklyn, NY 11201
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Other Names 1

Doing Business AsMount Sinai Brooklyn Heights

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Mount Sinai Brooklyn Heights is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

101

Medicare enrollment records show 101 clinicians reassign Medicare billing to Mount Sinai Brooklyn Heights, which bills Medicare for the services they deliver. Of these, 16 practice at this address and 79 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 25

Internal Medicine31
Family Practice12
Hospitalist12
Endocrinology4
Nephrology4
Pediatric Medicine4
Cardiovascular Disease (Cardiology)3
Certified Nurse Midwife (CNM)3
17 other specialties28

Nearest to this location (20)

See all 101
Jennifer Abrams, DO
Endocrinology
NPI 1679101364
300 CADMAN PLZ W
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Robert Alperin, M.D.
Internal Medicine
NPI 1285725036
300 CADMAN PLAZA WEST
Brooklyn, NY 11201
(929) 210-6000
✔ PECOSSame address
Heiba Belal
Endocrinology
NPI 1568922524
300 CADMAN PLZ W FL 17
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Monica Dweck, M.D.
Ophthalmology
NPI 1821071333
300 CADMAN PLZ W
Brooklyn, NY 11201
(929) 210-6010
✔ PECOSSame address
William Fang
Family Practice
NPI 1174109185
300 CADMAN PLZ W FL 17
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Emmanuel Francis, MBBS
Internal Medicine
NPI 1023561545
300 CADMAN PLZ W FL 17
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Courtney Greene, DO
Pediatric Medicine
NPI 1699236596
300 CADMAN PLZ W FL 17
Brooklyn, NY 11201
(929) 210-6000
✔ PECOSSame address
John Francis Hennecken, MD
Cardiovascular Disease (Cardiology)
NPI 1104856780
300 CADMAN PLZ W FL 18
Brooklyn, NY 11201
(929) 210-6135
✔ PECOS✔ Accepts MedicareSame address
Matthew Lane, MD
Internal Medicine
NPI 1912968751
300 CADMAN PLZ W
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Rebecca Seigel, MD
Family Practice
NPI 1891802351
300 CADMAN PLZ W
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Sarah Silverman, MD
Allergy/Immunology
NPI 1407989775
300 CADMAN PLAZA WEST
Brooklyn, NY 11201
(929) 210-6000
✔ PECOSSame address
Sarah Teitell, MD
Pediatric Medicine
NPI 1982163184
300 CADMAN PLZ W FL 17
Brooklyn, NY 11201
(929) 210-6000
✔ PECOSSame address
Daniel Jones, MD
Ophthalmology
NPI 1447810841
300 CADMAN PLZ W FL 18
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Franklin Mcneil, MD
Pain Management
NPI 1215498217
300 CADMAN PLZ W
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Antoine Nguyen, DO
Internal Medicine
NPI 1922739739
300 CADMAN PLZ W FL 18
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Nina Onuoha
Family Practice
NPI 1518608884
300 CADMAN PLZ W
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts MedicareSame address
Beth Kantrowitz
Pediatric Medicine
NPI 1427443233
35 MONROE PL
Brooklyn, NY 11201
(718) 834-1007
✔ PECOS0.1 mi
Thazin Saw, MD
Internal Medicine
NPI 1396704631
50 COURT ST
Brooklyn, NY 11201
(929) 210-6000
✔ PECOS✔ Accepts Medicare0.2 mi
Alexander Lipyansky, M.D.
Urology
NPI 1922213032
121 DEKALB AVE UROLOGY DEPT.
Brooklyn, NY 11201
(718) 250-6880
✔ PECOS✔ Accepts Medicare0.8 mi
Michael Kim, M.D.
Internal Medicine
NPI 1457376576
156 WILLIAM ST FL 6
New York, NY 10038
(646) 962-5665
✔ PECOS✔ Accepts Medicare1.3 mi
See all 101 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 Waiver 33D2052306

Icahn School Of Medicine At Mount Sinai · Brooklyn, NY
Active · expires Mar 26, 2027
CLIA Number33D2052306
Laboratory TypeCommunity Clinic
Certificate Effective DateJune 23, 2016
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Maheshwardeep Singh
Laboratory Phone(929) 210-6364
Laboratory LocationIcahn School Of Medicine At Mount Sinai300 Cadman Plaza - 18th Floor, Brooklyn, NY 11201
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

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 Icahn School Of Medicine At Mount Sinai's NPI number?

The NPI number for Icahn School Of Medicine At Mount Sinai is 1255719563. It was assigned to this organization in the NPPES registry on May 7, 2015. The provider is doing business as Mount Sinai Brooklyn Heights.

Where is Icahn School Of Medicine At Mount Sinai located?

Icahn School Of Medicine At Mount Sinai is located at 300 Cadman Plaza West, Brooklyn, NY 11201. The listed phone number is (929) 210-6000.

What is Icahn School Of Medicine At Mount Sinai's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Icahn School Of Medicine At Mount Sinai enrolled in Medicare?

Yes. Icahn School Of Medicine At Mount Sinai is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Icahn School Of Medicine At Mount Sinai?

According to the CMS Revalidation Reassignment List (October 2026 release), 101 clinicians in 25 Medicare specialties reassign their Medicare billing to Icahn School Of Medicine At Mount Sinai. 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 Internal Medicine (31), Family Practice (12) and Hospitalist (12). Of these, 16 practice at this address and 79 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Icahn School Of Medicine At Mount Sinai hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D2052306) 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 Icahn School Of Medicine At Mount Sinai was last updated on July 29, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.