What is John Karesh's specialty?

John Karesh (NPI 1932127917) is a Medicare-billing provider whose primary specialty is Internal Medicine in Oswego, IL.

Where does John Karesh practice?

John Karesh practices in Oswego, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1932127917.

How much does Medicare pay John Karesh?

John Karesh (NPI 1932127917) received approximately $180K in total Medicare Part B payments, serving 580 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1932127917

John KareshMD

PRACTICEDREYER CLINIC, INCSee all providers at this practice →

Internal MedicineOswego, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,202

Unique beneficiaries

—

Total services

4,161

Distinct HCPCS

Medicare payment

$166K

Peer benchmark

Total Medicare services vs. 3,790 Internal Medicine providers in IL — top quintile (cohort median 760).

PRESCRIBING · PART D · 2024

Total Rx claims

10,173

Beneficiaries

—

Total drug cost

$476K

Distinct drugs

137

Brand share

18.8%

Top prescribed drugs

Atorvastatin Calcium600 claims

Lisinopril428 claims

Levothyroxine Sodium417 claims

Amlodipine Besylate406 claims

Losartan Potassium388 claims

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 John Karesh'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). 72 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
COPLEY MEMORIAL HOSPITAL, INC.	205	954
THE TILLERS NURSING AND REHABILITATION CENTER	130	800
Kalliope Morrell Nurse Practitioner · Fort Myers, FL	109	740
Michael Nuyles Interventional Cardiology · North Aurora, IL	90	583
Syed Akbar Diagnostic Radiology · Oak Brook, IL	79	251
PRESENCE CENTRAL AND SUBURBAN HOSPITALS NETWORK	69	252
Dennis Keane Physical Medicine and Rehabilitation · Aurora, IL	66	450
Farah Hussain Cardiology · Aurora, IL	62	266
Imran Qureshi Diagnostic Radiology · Aurora, IL	58	274
Timothy Oconnell Diagnostic Radiology · Clarendon Hills, IL	52	189
Dave Chua Cardiology · Aurora, IL	49	160
Howard Fox Podiatry · Oswego, IL	48	153

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