Diana Ying Wu, MD
Gastroenterology Physician · Providence, RI
Diana Ying Wu, MD is a gastroenterology physician with a practice address in Providence, Rhode Island, and NPI 1548437395, issued on May 12, 2008. Check the license (Rhode Island MD14555, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Diana Ying Wu
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD14555 RI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Dudley St, Providence, RI 02905
- Phone
- (617) 756-5711
- Enumerated
- May 12, 2008
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20101220000218); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2007
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 96 in Rhode Island → Look up another NPI →
Also registered at 100 Dudley St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah Canning, RN,CDOEDiabetes Educator Registered Nurse1922703123
- Chelsea Cotugno, MS RDNRegistered Dietitian1134732365
- Katrina Horner, MSN, FNP-BCFamily Nurse Practitioner1699482182
- Elisa McEachern, MDInternal Medicine Physician1275064198
- Srilakshmi Mitta, M.D.Internal Medicine Physician1083829774
- Samira Ouklilane, NPGerontology Nurse Practitioner1265048250
Verify Diana Ying Wu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD14555Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average gastroenterology physician in 2024
1,001 Medicare Part D claims for 246 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Pantoprazole Sodium216 claims
- Xifaxan114 claims
- Carvedilol76 claims
- Omeprazole57 claims
- Lactulose55 claims
- Famotidine50 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Ying Wu among 96 gastroenterology physician records in Rhode Island
Diana Ying Wu, MD is one of 96 gastroenterology physician records with a practice address in Rhode Island. 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 2008, is newer than 67% of them.
- NPI issued2008 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2007 · median 1997 among the 66 with a school on file
- Record last updated2022 · 51% 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 Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Rhode Island
There are 96 gastroenterology physician records in Rhode Island.
All 96 in Rhode Island → Every provider in Providence → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Paul Akerman, MDProvidence, RI 029051942302773
- Nicholas Califano, M.D.Providence, RI 029051679668164
- Leslie Cashel, M.D.Providence, RI 029051861585515
- William Chen, M.D.Providence, RI 029051467546051
- Christy Dibble, MDProvidence, RI 029051043240062
- Mariam Fayek, MDProvidence, RI 029051316997588
- Sheldon Lidofsky, MDProvidence, RI 029051447336904
- Peter Margolis, MDProvidence, RI 029051659457133
Common questions
What is Diana Ying Wu, MD's NPI number?
Diana Ying Wu, MD's National Provider Identifier (NPI) is 1548437395, issued on May 12, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Diana Ying Wu, MD located?
The NPPES record lists a practice address at 100 Dudley St, Providence, RI, 02905. Phone: (617) 756-5711. Providers update this record themselves, so call before visiting.
How can I verify Diana Ying Wu, MD's license?
NPPES lists Rhode Island license number MD14555, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diana Ying Wu, MD prescribe under Medicare Part D?
In 2024, Diana Ying Wu, MD had 1,001 Medicare Part D claims for 246 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.