TUAN T. LAM (M.D.) – Specialist, NPI 1124290713
Specialist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,010 CARDIOVASCULAR DISEASE (CARDIOLOGY) in CA
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Provider Addresses for TUAN T. LAM (M.D.)
Warner Avenue, Fountain Valley, Orange County, California, 92704-7096, United States
FOUNTAIN VALLEY, CA 927084047
Phone: (714) 708-0500
Fax: (714) 708-0055
Type: Mailing
10152 COWAN HEIGHTS DR
SANTA ANA, CA 927051597
Phone: (714) 824-9662
Type: Mailing
18035 BROOKHURST ST STE 1300
FOUNTAIN VALLEY, CA 927086738
Phone: (657) 241-9440
Type: Location
2660 W Sugnet Rd
Midland, MI 486402647
Phone: (998) 979-4520
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 67 Open Payments records for all available years, with a total value of $4,902.
Total Amount is formed as General ($4,902) + Research ($0) + Ownership ($0) = $4,902.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: ATRICURE, INC. ($2,664).
Total Amount
$4,902
General + Research + Ownership
Payments
67
Total payment records
General Amount
$4,902
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ATRICURE, INC. | $2,664 |
| Abbott Laboratories | $845 |
| Edwards Lifesciences Corporation | $431 |
| ABIOMED | $357 |
| Medtronic, Inc. | $320 |
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: 2024-10-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 4 Medicare enrollment records; no due dates published yet.
Enrollment records
4
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 |
|---|---|---|---|---|
| I20090512000032 | I | Cardiovascular Disease (Cardiology) | CA | TBD |
| I20221026003084 | I | Thoracic Surgery | IA | TBD |
| I20231227000276 | I | Thoracic Surgery | VA | TBD |
| I20241001003581 | I | Thoracic Surgery | MI | 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 |
|---|---|---|---|---|
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 44 | 44 | $0 |
| 33533 | Coronary artery bypass using artery graft, 1 graft | 30 | 30 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 24 | 24 | $0 |
| 33508 | Harvest of vein using an endoscope | 23 | 23 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 22 | 13 | $0 |
Insurance plans in this area (ZIP 92708)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 33518 | Combined multiple vein and artery heart artery bypasses | 11 | 11 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | OH | |
| Cardiovascular Disease (Cardiology) | MI | |
| Physician Assistant | MI | |
| Nurse Practitioner | TX | |
| Cardiovascular Disease (Cardiology), Interventional Cardiology, Cardiovascular Disease (Cardiology) | MI | |
| Pulmonary Disease, Critical Care (Intensivists) | MI | |
| Physician Assistant | MI | |
| - | MI | |
| - | MI | |
| - | MI |
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