ALEXANDER NISSEN – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1730540386
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
183 CARDIAC SURGERY in TX
Provider Addresses for ALEXANDER NISSEN
2200 BERGQUIST DRIVE SUITE 1
WHMC / GE-2200
JBSA LACKLAND AFB, TX 782365300
Phone: (210) 916-0439
Type: Mailing
WALTER REED NATIONAL MILITARY MEDICAL CENTER
8901 WISCONSIN AVE
BETHESDA, MD 208890004
Phone: (703) 401-2509
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 24 Open Payments records for all available years, with a total value of $12,885.
Total Amount is formed as General ($12,885) + Research ($0) + Ownership ($0) = $12,885.
Last reported payment date: 2024-12-14 • Largest payer in this snapshot: Medtronic, Inc. ($12,235).
Total Amount
$12,885
General + Research + Ownership
Payments
24
Total payment records
General Amount
$12,885
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-14
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $12,235 |
| Artivion, Inc. | $231 |
| Edwards Lifesciences Corporation | $147 |
| Davol Inc. | $140 |
| Abbott Laboratories | $116 |
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: 2025-08-09
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 |
|---|---|---|---|---|
| I20250809000547 | I | Cardiac Surgery | DC | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 78236)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MD | |
| Cardiovascular Disease (Cardiology) | MA | |
| - | DC | |
| - | IA | |
| Cardiac Surgery | DC | |
| Nurse Practitioner | PA | |
| - | DC | |
| Cardiovascular Disease (Cardiology), Critical Care (Intensivists) | CA | |
| Vascular Surgery | DC | |
| Advanced Heart Failure And Transplant Cardiology | DC |
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