DR. SAMUEL LEWIS JOHNSTON (M.D.) – Clinical Cardiac Electrophysiology Physician, NPI 1184832271
Clinical Cardiac Electrophysiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
57 CARDIAC ELECTROPHYSIOLOGY in IA
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Provider Addresses for DR. SAMUEL LEWIS JOHNSTON (M.D.)
University of Iowa Hospitals & Clinics, 200, Hawkins Drive, Iowa City, Johnson County, Iowa, 52245, United States
E315GH
IOWA CITY, IA 522421009
Phone: (319) 356-3689
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 57 Open Payments records for all available years, with a total value of $4,280.
Total Amount is formed as General ($4,280) + Research ($0) + Ownership ($0) = $4,280.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Abbott Laboratories ($2,237).
Total Amount
$4,280
General + Research + Ownership
Payments
57
Total payment records
General Amount
$4,280
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $2,237 |
| Boston Scientific Corporation | $614 |
| Medtronic, Inc. | $340 |
| Biosense Webster, Inc. | $200 |
| Impulse Dynamics (USA) Inc. | $142 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2015-01-15
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20120921000334 | I | Cardiovascular Disease (Cardiology) | IL | TBD |
| I20150115000660 | I | Cardiac Electrophysiology | IA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 102 | 94 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 39 | 33 | $0 |
| 93294 | Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 29 | 22 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 25 | 24 | $0 |
Insurance plans in this area (ZIP 52242)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IA | |
| - | IA | |
| - | IA | |
| - | CA | |
| O P H T H A L M O L O G Y | IA | |
| - | IA | |
| - | IA | |
| - | IA | |
| - | CA | |
| - | IA |
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