DR. STANLEY K TAM (MD) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1942291570
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
78 CARDIAC SURGERY in MA
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Provider Addresses for DR. STANLEY K TAM (MD)
PO Box 846028, Albany Street, Church Green, Financial District, Boston, Suffolk County, Massachusetts, 02284-6028, United States
BOSTON, MA 022410001
Phone: (800) 225-8885
Fax: (508) 334-1977
Type: Mailing
UMASS Memorial Medical Center University Campus Hospital, 55, Lake Avenue North, Worcester, Worcester County, Massachusetts, 01653, United States
DEPARTMENT OF SURGERY
WORCESTER, MA 016550002
Phone: (508) 334-3962
Fax: (508) 334-7240
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $194.
Total Amount is formed as General ($194) + Research ($0) + Ownership ($0) = $194.
Last reported payment date: 2024-12-05 • Largest payer in this snapshot: Medtronic, Inc. ($86).
Total Amount
$194
General + Research + Ownership
Payments
4
Total payment records
General Amount
$194
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $86 |
| ATRICURE, INC. | $79 |
| Ethicon US, LLC | $28 |
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: 2004-02-20
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 |
|---|---|---|---|---|
| I20040220000807 | I | Cardiac Surgery | MA | 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 |
|---|---|---|---|---|
| 33533 | Coronary artery bypass using artery graft, 1 graft | 71 | 70 | $0 |
| 33508 | Harvest of vein using an endoscope | 65 | 65 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 31 | 31 | $0 |
| 33518 | Coronary artery bypass using vein or artery graft, 2 grafts | 29 | 29 | $0 |
| 33517 | Coronary artery bypass using vein or artery graft, 1 graft | 19 | 19 | $0 |
Insurance plans in this area (ZIP 02241)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | MA | |
| Diagnostic Radiology | MA | |
| Anesthesiology, Pain Management | MA | |
| Physician Assistant | MA | |
| Internal Medicine, Infectious Disease | MA | |
| Physician Assistant | MA | |
| Hospitalist, Internal Medicine | MA | |
| Pulmonary Disease, Infectious Disease | MA | |
| Pulmonary Disease, Critical Care (Intensivists) | MA | |
| Physician Assistant | MA |
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