What is Leonard Kessler's specialty?

Leonard Kessler (NPI 1942209135) is a Medicare-billing provider whose primary specialty is Internal Medicine in Rockville Centre, NY.

Where does Leonard Kessler practice?

Leonard Kessler practices in Rockville Centre, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1942209135.

How much does Medicare pay Leonard Kessler?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for Leonard Kessler (NPI 1942209135) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1942209135

Leonard Kessler

Internal MedicineRockville Centre, NYI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Leonard Kessler's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 29 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	253	2,134
Richard Lee Hematology-Oncology · Rockville Centre, NY	116	975
Mary Leung Hematology-Oncology · Rockville Centre, NY	81	759
WU, SUSAN	70	269
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	57	241
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	49	282
Kevin Kay Pathology · Oceanside, NY	39	156
Bioreference Health, Llc Clinical Laboratory · Elmwood Park, NJ	27	162
Raul Mendoza Cardiology · Lawrence, NY	25	72
Andrew Hwang Diagnostic Radiology · Anaheim, CA	24	61
NORTH SHORE UNIVERSITY HOSPITAL	24	108
NPI 1265587000	23	218

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events