What is Mark Leischner's specialty?

Mark Leischner (NPI 1598708877) is a Medicare-billing provider whose primary specialty is Nephrology in Chicago, IL.

Where does Mark Leischner practice?

Mark Leischner practices in Chicago, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1598708877.

How much does Medicare pay Mark Leischner?

Mark Leischner (NPI 1598708877) received approximately $255K in total Medicare Part B payments, serving 427 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1598708877

Mark LeischnerM.D.

PRACTICEVASCULAR ACCESS CENTERS OF ILLINOIS AT NORTH CENTER LLCSee all providers at this practice →

NephrologyChicago, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

965

Unique beneficiaries

—

Total services

10,734

Distinct HCPCS

Medicare payment

$205K

Peer benchmark

Total Medicare services vs. 404 Nephrology providers in IL — top quintile (cohort median 1,672).

PRESCRIBING · PART D · 2024

Total Rx claims

1,150

Beneficiaries

—

Total drug cost

$273K

Distinct drugs

Brand share

21.0%

Top prescribed drugs

Calcitriol235 claims

Furosemide113 claims

Amlodipine Besylate78 claims

Dapagliflozin Propanediol74 claims

Nifedipine72 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$186

Payment records

By payment type

Food and Beverage$186

Top paying entities

Food and Beverage$186

REFERRAL NETWORK

Where Mark Leischner'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). 30 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NPI 1255335535	57	120
Bogdan Derylo Nephrology · Chicago, IL	56	137
Eduardo Cremer Nephrology · Chicago, IL	52	166
MUNI, HARESH	48	126
FRESENIUS MEDICAL CARE CHICAGOLAND, LLC	40	660
City Of Chicago Ambulance Service Provider · Chicago, IL	37	87
Spectra East, Inc. Clinical Laboratory · Rockleigh, NJ	33	117
NORTHWESTERN MEMORIAL HEALTHCARE	26	140
William Sanders Pulmonary Disease · Chicago, IL	24	77
CHAWLA, KAMAL	23	57
Superior Air-Ground Ambulance Service, Inc Ambulance Service Provider · Elmhurst, IL	21	71
FRESENIUS MEDICAL CARE LOGAN SQUARE, LLC	21	79

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