Tuan T. Lam, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Fountain Valley, CA
Tuan T. Lam, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Fountain Valley, California, and NPI 1124290713, issued on Mar 24, 2008. Check the license (California A69720, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tuan T. Lam
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- A69720 CA
0101102688 VA
Self-reported in NPPES; status is on the state search - Practice location
- 18035 Brookhurst St Ste 1300, Fountain Valley, CA 92708
- Phone
- (657) 241-9440
- Enumerated
- Mar 24, 2008
- Record last updated
- May 8, 2026
- Medicare enrollment
- Enrolled (PECOS I20090512000032); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 634 in California → Look up another NPI →
Also registered at 18035 Brookhurst St Ste 1300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Hargrove, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1871812727
- Charles Murphy, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1487693735
- Samantha OngSurgical Physician Assistant1366184152
- Drew Spindler, PA-CSurgical Physician Assistant1992878110
Verify Tuan T. Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A69720Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
47 Medicare Part D claims for 17 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,861.61
30 payments; by number, the most common kind was food and beverage; the largest payer was Atricure, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Mymichigan Medical Center MidlandMidland, MI · Acute Care Hospitals4 of 5 stars
- Memorialcare Medical FoundationFountain Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Tuan T. Lam among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California
Tuan T. Lam, M.D. is one of 634 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.
- NPI issued2008 · 63% of these records are older, 30% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1997 · median 1997 among the 408 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in California
There are 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California.
All 634 in California → Every provider in Fountain Valley → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Reginald Abraham, M DFountain Valley, CA 927081720042864
- Rachel Hargrove, M.D.Fountain Valley, CA 927081871812727
- Charles Murphy, MDFountain Valley, CA 927081487693735
- Andrew Rabenstein, M.D.Fountain Valley, CA 927081841652385
- Peter Wawro, M.D.Santa Ana, CA 927051487691051
- Alaa Afifi, MDSanta Ana, CA 927011609802552
- Shigeru Chino, M.D.Laguna Niguel, CA 926771982604781
- Badr Ghumrawi, MDLaguna Niguel, CA 926771013081322
Common questions
What is Tuan T. Lam, M.D.'s NPI number?
Tuan T. Lam, M.D.'s National Provider Identifier (NPI) is 1124290713, issued on Mar 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Tuan T. Lam, M.D. located?
The NPPES record lists a practice address at 18035 Brookhurst St Ste 1300, Fountain Valley, CA, 92708. Phone: (657) 241-9440. Providers update this record themselves, so call before visiting.
How can I verify Tuan T. Lam, M.D.'s license?
NPPES lists California license number A69720, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tuan T. Lam, M.D. prescribe under Medicare Part D?
In 2024, Tuan T. Lam, M.D. had 47 Medicare Part D claims for 17 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.