DR. HENNING A GAISSERT (MD) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1437149028
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Loading map...
Provider Addresses for DR. HENNING A GAISSERT (MD)
Charlestown Post Office (mobile), Pattern Close, St Austell Bay, Charlestown, Cornwall, England, PL25 3FQ, United Kingdom
CHARLESTOWN, MA 021299142
Phone: (617) 726-5341
Fax: (617) 726-7667
Type: Mailing
Massachusetts General Hospital, 55, Fruit Street, Beacon Hill, Boston, Suffolk County, Massachusetts, 02114, United States
BLK 1570
BOSTON, MA 021142621
Phone: (617) 726-5341
Fax: (617) 726-7667
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2011-08-03
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 |
|---|---|---|---|---|
| I20040621000924 | I | Thoracic Surgery | MA | TBD |
| I20110803000262 | I | Thoracic Surgery | NH | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 93 | 89 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 56 | 56 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 16 | 15 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $0 |
Insurance plans in this area (ZIP 02129)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| G A S T R O E N T E R O L O G Y | MA | |
| Cardiovascular Disease (Cardiology) | MA | |
| Diagnostic Radiology | MA | |
| Nephrology, Internal Medicine | MA | |
| Nurse Practitioner | MA | |
| P A T H O L O G Y | NY | |
| P A T H O L O G Y | MA | |
| Nephrology, Internal Medicine | MA | |
| P S Y C H I A T R Y | MA | |
| Cardiac Electrophysiology, Internal Medicine, Cardiovascular Disease (Cardiology) | MA |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.