Winnie Szeto, MD
Gastroenterology Physician · Lowell, MA
Winnie Szeto, MD is a gastroenterology physician with a practice address in Lowell, Massachusetts, and NPI 1588899504, issued on May 19, 2009. Check the license (Massachusetts 266762, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Winnie Szeto
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 266762 MA
Self-reported in NPPES; status is on the state search - Practice location
- 41 Wellman St Ste 400, Lowell, MA 01851
- Phone
- (978) 459-6737
- Enumerated
- May 19, 2009
- Record last updated
- Jan 8, 2025
- Fax
- (855) 818-1869
- Medicare enrollment
- Enrolled (PECOS I20170623001556); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 41 Wellman St Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carl Edouard Jn Pierre, MDAnesthesiology Physician1952659922
- Franklin Marinelli, MDGastroenterology Physician1780676155
- Supriya Rao, M.D.Internal Medicine Physician1205098886
- Richard Tilson, MDGastroenterology Physician1346336831
Verify Winnie Szeto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 266762Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average gastroenterology physician in 2024
475 Medicare Part D claims for 174 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Omeprazole90 claims
- Famotidine55 claims
- Sutab50 claims
- Stelara35 claims
- Pantoprazole Sodium22 claims
- Sod Sulf-Potass Sulf-Mag Sulf22 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: $774.71
29 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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 one group practice
- Integrated Gastroenterology Consultants, P.C.Andover, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Winnie Szeto among 686 gastroenterology physician records in Massachusetts
Winnie Szeto, MD is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 65% of them.
- NPI issued2009 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2009 · median 2004 among the 491 with a school on file
- Record last updated2025 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Lowell → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Franklin Marinelli, MDLowell, MA 018511780676155
- Richard Tilson, MDLowell, MA 018511346336831
- Mark Nitzberg, M.D.Methuen, MA 018441881652758
- Richard Sawyer, MDMethuen, MA 018441093794042
- Thomas Fazio, M.D.Lawrence, MA 018431902800832
- Drew Niccolini, M.D.Lawrence, MA 018431639174410
- Nitin Aggarwal, M.D.North Chelmsford, MA 018631407145402
- Heidi Ahmed, M.D.North Chelmsford, MA 018631801276472
Common questions
What is Winnie Szeto, MD's NPI number?
Winnie Szeto, MD's National Provider Identifier (NPI) is 1588899504, issued on May 19, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Winnie Szeto, MD located?
The NPPES record lists a practice address at 41 Wellman St Ste 400, Lowell, MA, 01851. Phone: (978) 459-6737. Providers update this record themselves, so call before visiting.
How can I verify Winnie Szeto, MD's license?
NPPES lists Massachusetts license number 266762, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Winnie Szeto, MD prescribe under Medicare Part D?
In 2024, Winnie Szeto, MD had 475 Medicare Part D claims for 174 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.