Chunwei Walter Lai, M.D., PH.D.
Gastroenterology Physician · Hagerstown, MD
Chunwei Walter Lai, M.D., PH.D. is a gastroenterology physician with a practice address in Hagerstown, Maryland, and NPI 1134568306, issued on Jun 20, 2013. Check the license (Maryland D96225, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Chunwei Walter Lai
- Credential
- M.D., PH.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- D96225 MD
MD458201 PA
MT203510 PA
Self-reported in NPPES; status is on the state search - Practice location
- 11110 Medical Campus RD Ste 246, Hagerstown, MD 21742
- Phone
- (301) 665-4585
- Enumerated
- Jun 20, 2013
- Record last updated
- Jul 18, 2023
- Medicare enrollment
- Enrolled (PECOS I20230726001396); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2013
- Entity
- Type 1 · individual
Also registered at 11110 Medical Campus RD Ste 246
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Riad Almudallal, MDGastroenterology Physician1245220763
- Showkat Bashir, MDGastroenterology Physician1740242106
- Pear Enam, M.D.Specialist1780687616
- Rashid Hanif, M.D.Gastroenterology Physician1285637116
- Erin Oman, CRNPFamily Nurse Practitioner1891260741
Verify Chunwei Walter Lai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D96225Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average gastroenterology physician in 2024
311 Medicare Part D claims for 134 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Omeprazole66 claims
- Sucralfate36 claims
- Pantoprazole Sodium34 claims
- Esomeprazole Magnesium19 claims
- Clenpiq18 claims
- Gavilyte-C16 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.
Industry payments in 2024: $22.50
1 payment: food and beverage; the largest payer was Pacira Pharmaceuticals Incorporated. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through 2 group practices
- Medical Practices OF Antietam, LLCHagerstown, MD
- Meritus Medical Center IncHagerstown, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in Maryland
There are 505 gastroenterology physician records in Maryland.
Other gastroenterology physician records in Maryland
- Mohammad Abdallah, MBBSLa Plata, MD1598251282
- Maaza Abdi, M.D.Baltimore, MD1063625028
- Tsion Abdi, MDBaltimore, MD1881919637
- Hamza Abdulla, M.D.Easton, MD1437599529
- Thomas Abernathy, M.D.Catonsville, MD1538105697
- Fasika Aberra, M.D.Prince Frederick, MD1134480858
- Ruben Acosta, M.D.Silver Spring, MD1376545962
- Michael Adams, DOBethesda, MD1548757834
- Oluwasayo Adeyemo, MD/MPHAbingdon, MD1205221777
- Abdulhosein Adham, M.D.Oxon Hill, MD1710933791
Common questions
What is Chunwei Walter Lai, M.D., PH.D.'s NPI number?
Chunwei Walter Lai, M.D., PH.D.'s National Provider Identifier (NPI) is 1134568306, issued on Jun 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Chunwei Walter Lai, M.D., PH.D. located?
The NPPES record lists a practice address at 11110 Medical Campus RD Ste 246, Hagerstown, MD, 21742. Phone: (301) 665-4585. Providers update this record themselves, so call before visiting.
How can I verify Chunwei Walter Lai, M.D., PH.D.'s license?
NPPES lists Maryland license number D96225, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chunwei Walter Lai, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Chunwei Walter Lai, M.D., PH.D. had 311 Medicare Part D claims for 134 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.