Thuan Duc Lai, M.D.
Internal Medicine Physician · Fresno, CA
Thuan Duc Lai, M.D. is an internal medicine physician with a practice address in Fresno, California, and NPI 1518068931, issued on Sep 26, 2006. Check the license (California A43047, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thuan Duc Lai
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A43047 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1359 N Fresno St, Fresno, CA 93703
- Phone
- (559) 497-1359
- Enumerated
- Sep 26, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (559) 497-1370
- Medicaid ID
- 00A430470 CA
- Entity
- Type 1 · individual
Also registered at 1359 N Fresno St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Delayo, FNPFamily Nurse Practitioner1922382589
- Adam Lopez, PSYDPsychologist1205634235
Verify Thuan Duc Lai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A43047Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
17 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
335 internal medicine physician records list a practice address in Fresno
They are 335 of the 19,440 NPPES records with a practice address in Fresno, and 17,696 internal medicine physician records in California.
All 335 in Fresno → All 17,696 in California → Every provider in Fresno →
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- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
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Common questions
What is Thuan Duc Lai, M.D.'s NPI number?
Thuan Duc Lai, M.D.'s National Provider Identifier (NPI) is 1518068931, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thuan Duc Lai, M.D. located?
The NPPES record lists a practice address at 1359 N Fresno St, Fresno, CA, 93703. Phone: (559) 497-1359. Providers update this record themselves, so call before visiting.
How can I verify Thuan Duc Lai, M.D.'s license?
NPPES lists California license number A43047, 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 Thuan Duc Lai, M.D. prescribe under Medicare Part D?
In 2024, Thuan Duc Lai, M.D. had 17 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.