John Paul Nsubuga, MD
Gastroenterology Physician · Medford, MA
John Paul Nsubuga, MD is a gastroenterology physician with a practice address in Medford, Massachusetts, and NPI 1164089777, issued on May 20, 2019. Check the license (Massachusetts 1022948, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John Paul Nsubuga
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 1022948 MA
279943 MA
LP05518 RI
Self-reported in NPPES; status is on the state search - Practice location
- 26 City Hall Mall, Medford, MA 02155
- Phone
- (781) 306-5100
- Enumerated
- May 20, 2019
- Record last updated
- Jun 26, 2025
- Medicare enrollment
- Enrolled (PECOS I20250620002684); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 26 City Hall Mall
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pamela Allen, PAMedical Physician Assistant1194788950
- Wedad Almasri, MDPediatrics Physician1598728297
- Razvan Arsenescu, MDGastroenterology Physician1477560316
- Alicia Azpiri Magallanes, M.D.Psychiatry Physician1326217985
- Margaret Balya, M.D.Psychiatry Physician1427107242
- Veronica Baptista, M.D.Gastroenterology Physician1407827538
Verify John Paul Nsubuga in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1022948Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average gastroenterology physician in 2024
161 Medicare Part D claims for 44 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Omeprazole79 claims
- Pantoprazole Sodium20 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: $583.66
5 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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
- Atrius Health IncNeedham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Paul Nsubuga among 686 gastroenterology physician records in Massachusetts
John Paul Nsubuga, 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 2019, is newer than 93% of them.
- NPI issued2019 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2019 · 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 Medford → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Razvan Arsenescu, MDMedford, MA 021551477560316
- Veronica Baptista, M.D.Medford, MA 021551407827538
- Fehmida Chipty, M.D.Medford, MA 021551063423804
- Gale Fiarman, MDMedford, MA 021551831292838
- Zain Kassam, MD, MPH, FRCPCMedford, MA 021551982011813
- James Kemp, MDMedford, MA 021551215030291
- Madan Zutshi, MDEverett, MA 021491699743427
- Kinnari Kher, M.D.Somerville, MA 021441821102237
Common questions
What is John Paul Nsubuga, MD's NPI number?
John Paul Nsubuga, MD's National Provider Identifier (NPI) is 1164089777, issued on May 20, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John Paul Nsubuga, MD located?
The NPPES record lists a practice address at 26 City Hall Mall, Medford, MA, 02155. Phone: (781) 306-5100. Providers update this record themselves, so call before visiting.
How can I verify John Paul Nsubuga, MD's license?
NPPES lists Massachusetts license number 1022948, 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 John Paul Nsubuga, MD prescribe under Medicare Part D?
In 2024, John Paul Nsubuga, MD had 161 Medicare Part D claims for 44 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.