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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LEAH GANCZ
NPI 1912692120
Emergency Medicine in Stony Brook, NY

Active since April 05, 2023PECOS Enrolled
100 NICOLLS RD, DEPT OF EMERGENCY MEDICINE, ATTN: VIVIANA ANDINO, STONY BROOK, NY 11794(631) 444-2461(631) 444-3919 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 29, 2026, Apr 5, 2023 (2 updates tracked since 2023).

About Leah Gancz NPPES

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

LEAH GANCZ (NPI 1912692120) is an individual emergency medicine provider in Stony Brook, New York, licensed in New York (344178-01) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1912692120
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameLEAH GANCZ
Location Address100 NICOLLS RD, DEPT OF EMERGENCY MEDICINE, ATTN: VIVIANA ANDINOStony Brook, NY 11794-0001
Mailing Address101 Nicolls RdStony Brook, NY 11794-0001 · (631) 444-3880
Phone(631) 444-2461
Fax(631) 444-3919
Sole ProprietorNo
Enumeration DateApril 5, 2023
Last NPPES UpdateJuly 29, 20262 updates tracked since enumeration
NPPES CertifiedJuly 29, 2026
✔ NPI 1912692120 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NY · 344178-01
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
100 NICOLLS RD, Stony Brook, NY 11794
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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 (PECOS)

Leah Gancz is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11794 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
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.

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.

MALWINA WLOCH M.D.
Anesthesiology
100 NICOLLS RD, SUNY AT STONY BROOK - DEPARTMENT OF ANESTHESIOLOGY
STONY BROOK, NY 11794
Suffolk County (631) 444-2968
CHABIDOU SAMPAIN FNP
Psychiatry & Neurology (Geriatric Psychiatry)
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 358-1423
MISS KAITLYN SBROLLINI
Student in an Organized Health Care Education/Training Program
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 331-6388
DR. RASAN KASHYAP CHERALA MD
Internal Medicine
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (425) 753-8665
EMILY GRACE DEEHAN
Specialist/Technologist (Athletic Trainer)
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 632-6000
DR. MUHAMMAD IBRAHIM CHOUDRY MD
Anesthesiology
100 NICOLLS RD, HEALTH SCIENCES CENTER L4-060 (Z8480)
STONY BROOK, NY 11794
Suffolk County (631) 444-2975
DR. KEITH THOMAS DIAZ M.D.
Internal Medicine
100 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 444-2754
DR. JOSEPH CABALLERO M.D.
Anesthesiology
100 NICOLLS RD, DEPT OF ANESTHESIOLOGY HEALTH SCIENCES CENTER L4 #060
STONY BROOK, NY 11794
Suffolk County (631) 444-2975

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 Leah Gancz's NPI number?

The NPI number for Leah Gancz is 1912692120. It was assigned to this individual provider in the NPPES registry on April 5, 2023.

Where is Leah Gancz located?

Leah Gancz practices at 100 Nicolls Rd Dept Of Emergency Medicine, Attn: Viviana Andino, Stony Brook, NY 11794. The listed phone number is (631) 444-2461.

What is Leah Gancz's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Leah Gancz enrolled in Medicare?

Yes. Leah Gancz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Leah Gancz was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.