Wen S. Lai, M.D.
Internal Medicine Physician · Irving, TX
Wen S. Lai, M.D. is an internal medicine physician with a practice address in Irving, Texas, and NPI 1689698870, issued on Jul 27, 2006. Check the license (Texas J8631, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Wen S. Lai
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- J8631 TX
Self-reported in NPPES; status is on the state search - Practice location
- 701 Tuscan Dr, Irving, TX 75039
- Phone
- (214) 964-0600
- Enumerated
- Jul 27, 2006
- Record last updated
- May 13, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (214) 964-0638
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 701 Tuscan Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Belvedere, CRNACertified Registered Nurse Anesthetist1598763096
- Courtney Buzbee, PA-CPhysician Assistant1124236856
- Ashley Galovic, DPTPhysical Therapist1548628357
- Michael Hall, PA-CPhysician Assistant1346688439
- Rebecca Hardesty, P.A.-CMedical Physician Assistant1578831251
- Rebecca Haschke, PTPhysical Therapist1710127808
Verify Wen S. Lai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J8631Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
419 Medicare Part D claims for 151 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium36 claims
- Amlodipine Besylate24 claims
- Losartan Potassium21 claims
- Levothyroxine Sodium18 claims
- Rosuvastatin Calcium17 claims
- Pantoprazole Sodium13 claims
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.
Wen S. Lai among 9,175 internal medicine physician records in Texas
Wen S. Lai, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2019 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
98 internal medicine physician records list a practice address in Irving
They are 98 of the 3,532 NPPES records with a practice address in Irving, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Irving → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Selim Ahmed, MDIrving, TX 750391508805813
- Sumitha Atluri, MDIrving, TX 750391265513923
- Pritha Browning, M.D.Irving, TX 750391992723126
- Rupal Chiniwala, M.D.Irving, TX 750391013956408
- Megan Conoley, M.D.Irving, TX 750391689611485
- Bryan Demarie, M.D.Irving, TX 750391225085822
- Richard Johnston, M.D.Irving, TX 750391205878477
- Murad Jussa, M.D.Irving, TX 750391376593145
Common questions
What is Wen S. Lai, M.D.'s NPI number?
Wen S. Lai, M.D.'s National Provider Identifier (NPI) is 1689698870, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wen S. Lai, M.D. located?
The NPPES record lists a practice address at 701 Tuscan Dr, Irving, TX, 75039. Phone: (214) 964-0600. Providers update this record themselves, so call before visiting.
How can I verify Wen S. Lai, M.D.'s license?
NPPES lists Texas license number J8631, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Wen S. Lai, M.D. prescribe under Medicare Part D?
In 2024, Wen S. Lai, M.D. had 419 Medicare Part D claims for 151 beneficiaries; 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.