Roger Donald Wu, MD
Gastroenterology Physician · Elkton, MD
Roger Donald Wu, MD is a gastroenterology physician with a practice address in Elkton, Maryland, and NPI 1801088596, issued on Aug 16, 2007. Check the license (Maryland D75162, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Roger Donald Wu
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- D75162 MD
D0075162 MD
C1-0013600 DE
MT191250 PA
Self-reported in NPPES; status is on the state search - Practice location
- 137 W High St, Elkton, MD 21921
- Phone
- (410) 398-8888
- Enumerated
- Aug 16, 2007
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200810001995); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Also registered at 137 W High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Bedard, PTPhysical Therapist1154432268
- Caroline Bruce, RD, LDNRegistered Dietitian1306115225
- Helen Chang-Deguzman, M.D.Nephrology Physician1710989926
- Martin Gavin, D.O.Nephrology Physician1609862150
- Aprile Harris, MSNNurse Practitioner1831133701
- Kristine Henry, LDNNutritionist1649565482
Verify Roger Donald Wu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D75162Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average gastroenterology physician in 2024
635 Medicare Part D claims for 316 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf141 claims
- Omeprazole127 claims
- Dicyclomine Hcl67 claims
- Linzess57 claims
- Clenpiq25 claims
- Ondansetron Odt19 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: $901.87
39 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.
2 hospitals and group practices
- Union Hospital OF Cecil CountyElkton, MD · Acute Care Hospitals4 of 5 stars
- Southeast Iowa Regional Medical Center IncWilmington, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Roger Donald Wu among 505 gastroenterology physician records in Maryland
Roger Donald Wu, MD is one of 505 gastroenterology physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 36% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2007 · median 2002 among the 344 with a school on file
- Record last updated2021 · 61% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Maryland
There are 505 gastroenterology physician records in Maryland.
All 505 in Maryland → Every provider in Elkton → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Claire Zhang, M.D.Elkton, MD 219211194145672
- Kota Chandrasekhara, M.D.Delmar, MD 218751457447872
- George Galifianakis, M.D.Delmar, MD 218751912093337
- Manish Singla, MDDelmar, MD 218751912089202
- Steven Turnamian, M.D.Delmar, MD 218751265528681
- Mehak Bassi, MDBerlin, MD 218111942787486
- Jonathan Bell, MDBerlin, MD 218111437147873
- Jerrold Canakis, M.D.Berlin, MD 218111700874179
Common questions
What is Roger Donald Wu, MD's NPI number?
Roger Donald Wu, MD's National Provider Identifier (NPI) is 1801088596, issued on Aug 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Roger Donald Wu, MD located?
The NPPES record lists a practice address at 137 W High St, Elkton, MD, 21921. Phone: (410) 398-8888. Providers update this record themselves, so call before visiting.
How can I verify Roger Donald Wu, MD's license?
NPPES lists Maryland license number D75162, 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 Roger Donald Wu, MD prescribe under Medicare Part D?
In 2024, Roger Donald Wu, MD had 635 Medicare Part D claims for 316 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.