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PROVIDER PROFILE · NPI 1457359697

Charles BerkelhammerMD

PRACTICEOAK LAWN IL ENDOSCOPY ASC LLCSee all providers at this practice →
GastroenterologyOak Lawn, ILI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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REFERRAL NETWORK

Where Charles Berkelhammer'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). 47 inbound referrers · 78 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
ALEXIAN BROTHERS MEDICAL CENTER119393
PRABHU, SANJIV6375
Masood Qazi
Cardiology · Oak Lawn, IL
62174
PIERCE, KENNETH53141
Lynn Casey-Maher
Certified Registered Nurse Anesthetist (CRNA) · Geneva, IL
5062
Jeffrey Neiger
Clinical Cardiac Electrophysiology · Oak Lawn, IL
43134
High Technology Inc
Independent Diagnostic Testing Facility (IDTF) · Palos Heights, IL
4299
HEFFERNAN, THERESA4250
Roland Marshall
Pathology · Park Ridge, IL
4191
BROWN, HENRY41103
Beck Hur
Diagnostic Radiology · Lake Forest, IL
3575
Mihir Majmundar
Gastroenterology · Oak Lawn, IL
3473
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
ADVOCATE HEALTH AND HOSPITALS CORPORATION3661,510
Oak Lawn Il Endoscopy Asc Llc
Ambulatory Surgical Center · Oak Lawn, IL
106145
A2cl Services, Llc
Clinical Laboratory · West Allis, WI
97320
Lola Kwan
Gastroenterology · Bolingbrook, IL
53109
Fahmida Khatoon
Physician Assistant · Chicago, IL
50110
Chong Kim
Diagnostic Radiology · Oak Lawn, IL
3989
Roland Marshall
Pathology · Park Ridge, IL
3865
Superior Air-Ground Ambulance Service, Inc
Ambulance Service Provider · Elmhurst, IL
3892
LITTLE COMPANY OF MARY HOSPITAL INC3782
PIERCE, KENNETH3686
Peter Diamond
Internal Medicine · Elkhorn, WI
3664
High Technology Inc
Independent Diagnostic Testing Facility (IDTF) · Palos Heights, IL
3681
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.
PRESCRIBING · PART D · 2024
Total Rx claims
3,478
Beneficiaries
—
Total drug cost
$1.6M
Distinct drugs
40
Brand share
19.0%
Top prescribed drugs
Pantoprazole Sodium1,648 claims
Famotidine181 claims
Ondansetron156 claims
Linaclotide155 claims
Loperamide Hcl119 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,852
Unique beneficiaries
—
Total services
2,069
Distinct HCPCS
20
Medicare payment
$230K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 606 Gastroenterology providers in IL — top quintile (cohort median 726).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$1K
Payment records
73
By payment type
Food and Beverage$1K