KARL P UNDESSER (MD) – Clinical Cardiac Electrophysiology Physician, NPI 1013961242
Clinical Cardiac Electrophysiology Physician
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Profile Insights
NPPES metrics only — not quality of care.
25 CARDIAC ELECTROPHYSIOLOGY in ID
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Provider Addresses for KARL P UNDESSER (MD)
PO BOX 45822
BOISE, ID 837115822
Phone: (208) 888-4600
Fax: (208) 288-0800
Type: Mailing
PO BOX 742941
ATLANTA, GA 303742941
Phone:
Type: Mailing
Unity Health Center, 745, South Progress Avenue, Central Valley Corporate Park, Meridian, Ada County, Idaho, 83642, United States
MERIDIAN, ID 836425619
Phone: (208) 888-4600
Fax: (208) 288-0800
Type: Location
1906 FAIRVIEW AVE STE 230
CALDWELL, ID 836055432
Phone: (208) 795-5073
Fax: (208) 402-3181
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 74 Open Payments records for all available years, with a total value of $2,965.
Total Amount is formed as General ($2,965) + Research ($0) + Ownership ($0) = $2,965.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Abbott Laboratories ($674).
Total Amount
$2,965
General + Research + Ownership
Payments
74
Total payment records
General Amount
$2,965
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $674 |
| Medtronic, Inc. | $611 |
| E.R. Squibb & Sons, L.L.C. | $605 |
| Boston Scientific Corporation | $267 |
| Biosense Webster, Inc. | $144 |
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: 2006-12-06
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20061206000258 | I | Cardiac Electrophysiology | ID | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 794 | 456 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 250 | 168 | $0 |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 199 | 190 | $0 |
| 93280 | Programming of dual lead pacemaker system | 192 | 86 | $0 |
| 93296 | Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | 155 | 85 | $0 |
Insurance plans in this area (ZIP 83711)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIAC ELECTROPHYSIOLOGY | ID | 93284 | Evaluation, testing and programming adjustment of defibrillator with analysis, review and report | 47 | 32 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Interventional Cardiology | GA | |
| Physician Assistant | GA | |
| General Surgery | GA | |
| - | ID | |
| General Surgery | ID | |
| - | GA | |
| - | GA | |
| - | ID | |
| General Surgery | ID | |
| General Surgery | ID |
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