Active NPI
Tuan T. Lam, M.D.
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
- Fountain Valley, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
- License
- A69720
- Practice address
- 18035 Brookhurst St Ste 1300
Fountain Valley, CA 92708-6738 - Phone
- (657) 241-9440
- NPI assigned
- Mar 24, 2008
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 208G00000X | 0101102688 | VA | |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 208G00000X | A69720 | CA | Primary |
Addresses
Primary practice location
18035 Brookhurst St Ste 1300
Fountain Valley, CA 92708-6738
Mailing address
10152 Cowan Heights Dr
Santa Ana, CA 92705-1597
Phone (714) 824-9662
Other practice location 1
2660 W Sugnet Rd
Midland, MI 48640-2647
Phone (998) 979-4520
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA, IA, VA, MI
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 4
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20090512000032 | CA | Practitioner - Cardiovascular Disease (Cardiology) | 1456409929 | Reassigns benefits to 2 organizations |
| I20221026003084 | IA | Practitioner - Thoracic Surgery | 1456409929 | |
| I20231227000276 | VA | Practitioner - Thoracic Surgery | 1456409929 | Reassigns benefits to 2 organizations |
| I20241001003581 | MI | Practitioner - Thoracic Surgery | 1456409929 | Reassigns benefits to 2 organizations |
Care Compare profile
Medicare Care Compare- Specialty
- Cardiovascular Disease (Cardiology)
- Education
- Johns Hopkins University School of Medicine, 1997
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Memorialcare Medical FoundationMymichigan Medical Center Midland
Practice addresses (Care Compare)
18035 Brookhurst St
Suite 1300
Fountain Valley, CA 92708-6738
Phone (562) 988-9333
2660 W Sugnet Rd
Mymichigan Vascular Surgery
Midland, MI 48640-2647
Phone (989) 832-0900
Hospital & facility affiliations
- Memorialcare Orange Coast Medical Center
- Mymichigan Medical Center Midland
- Memorialcare Saddleback Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 100 of 100
- Quality
- 85.92
- Promoting interoperability
- 100
- Improvement activities
- 40
Merit-based Incentive Payment System (MIPS)
- Final score
- 87.17 of 100
- Quality
- 81.15
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 71.64
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Coronary artery bypass graft (CABG) | 36 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 69720 | CA | MD | Ambulatory Care Pharmacist |
| A69720 | CA | MD | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician |
Practice roles (27 of 28)
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Mymichigan Medical Center Saginaw | Current | Accepting new patients | |
| Mymichigan Medical Center Midland | Current | Accepting new patients | |
| Mymichigan Medical Center Saginaw | Thoracic Surgery (Cardiothoracic Vascular Surgery) | Current | Accepting new patients |
| Mymichigan Medical Center Saginaw | Current | Accepting new patients | |
| Mymichigan Medical Center Midland | Current | Accepting new patients | |
| Mymichigan Medical Center Saginaw | Current | Accepting new patients | |
| Bon Secours Medical Group Hampton Roads Specialty Care LLC | Thoracic Surgery (Cardiothoracic Vascular Surgery) | Current | Accepting new patients |
| Bon Secours Medical Group Hampton Roads Specialty Care LLC | Current | Accepting new patients | |
| Bon Secours Medical Group Richmond Specialty Care LLC | Current | Accepting new patients | |
| Bon Secours Medical Group Richmond Specialty Care LLC | Current | Accepting new patients | |
| Mymichigan Medical Center Midland | Past | Accepting new patients | |
| Children'S Hospital of Orange County | Past | Accepting new patients | |
| Ahmc Garfield Medical Center LP | Past | Accepting new patients | |
| Mission Hospital Regional Medical Center | Past | Accepting new patients | |
| Orange Coast Memorial Medical Center | Past | Accepting new patients | |
| Bristol Park Medical Group, Inc | Past | Accepting new patients | |
| Bon Secours St. Mary'S Hospital of Richmond LLC | Past | Accepting new patients | |
| Saddleback Memorial Medical Center | Past | Accepting new patients | |
| Anaheim Memorial Medical Center | Past | Accepting new patients | |
| Children'S Hospital at Mission | Past | Accepting new patients | |
| St Jude Hospital Inc | Past | Accepting new patients | |
| Hoag Memorial Hospital Presbyterian | Past | Accepting new patients | |
| St. Joseph Hospital | Specialist | Past | Accepting new patients |
| St Joseph Hospital of Orange | Past | Accepting new patients | |
| Long Beach Memorial Medical | Past | Accepting new patients | |
| Mymichigan Medical Center Saginaw | Past | Accepting new patients | |
| Long Beach Memorial Medical | Past | Accepting new patients |
Locations
1117 S Van Dyke Rd
Ste 300
Bad Axe, MI 48413
4000 Wellness Dr
Midland, MI 48670
Phone (844) 832-1956
2660 W Sugnet Rd
Midland, MI 48640
Phone (989) 488-5010
4500 N Campus Ridge Dr
Midland, MI 48640
Phone (989) 837-9250
3570 Shattuck Rd
Saginaw, MI 48603
Phone (989) 792-5353
1015 S Washington Ave
Saginaw, MI 48601
Phone (989) 754-3289
150 Kingsley Ln
Norfolk, VA 23505
Phone (757) 464-6944
1510 N 28th St
Ste 110
Richmond, VA 23223
Phone (804) 545-2304
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
Interoperability endpoints
- tlam21207@direct.memorialcare.org
Organizations & group practices 34
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Cardiovascular Disease Physician
- Richmond, VA
- NPI 1629637475
Thoracic Surgery (Cardiothoracic Vascular Surgery), VA
-
- Cardiovascular Disease Physician
- Richmond, VA
- NPI 1477112225
VA
-
- Anesthesiology Physician
- Midland, MI
- NPI 1649010455
-
- Specialist
- Orange, CA
- NPI 1154336949
CA
-
- General Acute Care Hospital
- Midland, MI
- NPI 1902841414
-
- Community Based Hospice Care Agency
- Mt. Pleasant, MI
- NPI 1134101983
-
- Pharmacy
- Midland, MI
- NPI 1376040659
-
- Home Health Agency
- Midland, MI
- NPI 1639102163
-
- Home Infusion Therapy Pharmacy
- Midland, MI
- NPI 1649594052
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Fountain Valley, CA
- NPI 1497702575
Hospital
-
- General Acute Care Hospital
- Laguna Hills, CA
- NPI 1275576381
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1206316800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1778198400000",
"number": "1124290713",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "10152 COWAN HEIGHTS DR",
"city": "SANTA ANA",
"state": "CA",
"postal_code": "927051597",
"telephone_number": "714-824-9662"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "18035 BROOKHURST ST STE 1300",
"city": "FOUNTAIN VALLEY",
"state": "CA",
"postal_code": "927086738",
"telephone_number": "657-241-9440"
}
],
"practiceLocations": [
{
"address_1": "2660 W Sugnet Rd",
"address_purpose": "LOCATION",
"city": "Midland",
"state": "MI",
"postal_code": "486402647",
"country_code": "US",
"telephone_number": "998-979-4520",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "LAM",
"first_name": "TUAN",
"middle_name": "T.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2008-03-24",
"last_updated": "2026-05-08",
"certification_date": "2026-05-08",
"status": "A"
},
"taxonomies": [
{
"code": "208G00000X",
"taxonomy_group": "",
"desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
"state": "VA",
"license": "0101102688",
"primary": false
},
{
"code": "208G00000X",
"taxonomy_group": "",
"desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
"state": "CA",
"license": "A69720",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Fountain Valley, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.