JOHN PAUL NSUBUGA MD
NPI 1164089777
Internal Medicine - Gastroenterology in Medford, MA
About John Paul Nsubuga Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN PAUL NSUBUGA MD (NPI 1164089777) is an individual gastroenterology provider in Medford, Massachusetts, licensed in Massachusetts (1022948) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Emerson Hospital -, and maintains a secondary practice location in Providence.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John Paul Nsubuga Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show John Paul Nsubuga reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Medford, MA 02155
- Reassigned Medicare billing, Massachusetts enrollment
- 1,317 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Emerson Hospital -
Acute Care Hospitals · W Concord, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MAWinchester Hospital
Acute Care Hospitals · Winchester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02155 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Paul Nsubuga's NPI number?
The NPI number for John Paul Nsubuga is 1164089777. It was assigned to this individual provider in the NPPES registry on May 20, 2019.
Where is John Paul Nsubuga located?
John Paul Nsubuga practices at 26 City Hall Mall, Medford, MA 02155. The listed phone number is (781) 306-5100.
What is John Paul Nsubuga's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is John Paul Nsubuga enrolled in Medicare?
Yes. John Paul Nsubuga is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for John Paul Nsubuga's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Paul Nsubuga reassigns Medicare benefits to Atrius Health, Inc. (Medford, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Paul Nsubuga's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Paul Nsubuga accept?
Health plans from Anthem Blue Cross and Blue Shield list John Paul Nsubuga as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Paul Nsubuga affiliated with any hospitals?
According to CMS data, John Paul Nsubuga is affiliated with Emerson Hospital -, Beth Israel Deaconess Medical Center and Winchester Hospital.
When was this NPI record last updated?
The NPPES record for John Paul Nsubuga was last updated on June 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John Paul Nsubuga, MD · NPI 1164089777
Gastroenterology physician in Medford, Massachusetts. Individual provider, active in the CMS NPPES registry since May 20, 2019.
## Identity
- **NPI:** 1164089777 (Entity type: Individual)
- **Enumerated:** May 20, 2019
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 1022948 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 26 CITY HALL MALL, Medford, MA 02155-4754
- **Phone:** (781) 306-5100
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Atrius Health, Inc. (NPI 1447464102, Medford, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Vermont College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** June 26, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1164089777) · Data from the CMS NPPES public registry.