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PROVIDER PROFILE · NPI 1184832271

Samuel JohnstonM.D.

Clinical Cardiac ElectrophysiologyIowa City, IAI
CROSS-REFERENCE

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REFERRAL NETWORK

Where Samuel Johnston'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). 9 inbound referrers · 19 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Cam Campbell
Cardiology · Cedar Rapids, IA
59167
Nicholas Hodgman
Interventional Cardiology · Nampa, ID
3797
Weland Clinical Laboratories, P.C.
Clinical Laboratory · Cedar Rapids, IA
3293
Rhonda Bridgewater
Nurse Practitioner · Cedar Rapids, IA
2170
Area Ambulance Authority
Ambulance Service Provider · Cedar Rapids, IA
2040
Salman Mehboob
Cardiology · Encinitas, CA
1738
Richard Seitz
Diagnostic Radiology · Cedar Rapids, IA
1424
Medical Laboratories Of Eastern Iowa Lc
Clinical Laboratory · Cedar Rapids, IA
1123
Darren Davenport
Diagnostic Radiology · Cedar Rapids, IA
1115
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
MERCY MEDICAL CENTER150511
Amandeep Singh Dhaliwal
Interventional Cardiology · Cedar Rapids, IA
4494
Susan Schima
Cardiology · Cedar Rapids, IA
43111
GLASSMAN, DAVID41132
Weland Clinical Laboratories, P.C.
Clinical Laboratory · Cedar Rapids, IA
41120
Ryan Hollenbeck
Interventional Cardiology · Cedar Rapids, IA
40134
Cam Campbell
Cardiology · Cedar Rapids, IA
3491
Nicholas Hodgman
Interventional Cardiology · Nampa, ID
3068
Rhonda Bridgewater
Nurse Practitioner · Cedar Rapids, IA
2257
Theodore Donta
Diagnostic Radiology · Iowa City, IA
1527
COVENANT MEDICAL CENTER INC1544
Salman Mehboob
Cardiology · Encinitas, CA
1430
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.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
326
Unique beneficiaries
—
Total services
346
Distinct HCPCS
7
Medicare payment
$5K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 30 Clinical Cardiac Electrophysiology providers in IA — bottom quintile (cohort median 4,166).
PRESCRIBING · PART D · 2024
Total Rx claims
102
Beneficiaries
—
Total drug cost
$25K
Distinct drugs
6
Brand share
27.5%
Top prescribed drugs
Apixaban28 claims
Flecainide Acetate17 claims
Metoprolol Succinate17 claims
Carvedilol16 claims
Amiodarone Hcl12 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$2K
Payment records
29
By payment type
Food and Beverage$2K