ABA EWUSI
NPI 1205847506
Internal Medicine in Cambridge, MA
About Aba Ewusi NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ABA EWUSI (NPI 1205847506) is an individual internal medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (220554) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Hospital - Needham, and is a graduate of University Of Pittsburgh School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
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
Aba Ewusi 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 Reassignments
6Medicare enrollment records show Aba Ewusi reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1497151773 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Roslindale, MA 02131
- Reassigned Medicare billing, Massachusetts enrollment
- 26 clinicians in this Medicare group
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Beth Israel Deaconess Hospital - Needham
Acute Care Hospitals · Needham, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02139 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Aba Ewusi's NPI number?
The NPI number for Aba Ewusi is 1205847506. It was assigned to this individual provider in the NPPES registry on August 11, 2006.
Where is Aba Ewusi located?
Aba Ewusi practices at 1493 Cambridge St, Cambridge, MA 02139. The listed phone number is (617) 389-6270.
What is Aba Ewusi's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Aba Ewusi enrolled in Medicare?
Yes. Aba Ewusi 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 organizations bill Medicare for Aba Ewusi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aba Ewusi reassigns Medicare benefits to 6 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), Brigham & Womens Physicians Organization Inc (Boston, MA), Hebrew Seniorlife Affiliated Medical Group Inc (Roslindale, MA) and 1 more organization, listed in the Medicare section above. Each 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 Aba Ewusi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Aba Ewusi affiliated with any hospitals?
According to CMS data, Aba Ewusi is affiliated with Beth Israel Deaconess Hospital - Needham and Beth Israel Deaconess Medical Center.
When was this NPI record last updated?
The NPPES record for Aba Ewusi was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.
# Aba Ewusi · NPI 1205847506
Internal Medicine physician in Cambridge, Massachusetts. Individual provider, active in the CMS NPPES registry since August 11, 2006.
## Identity
- **NPI:** 1205847506 (Entity type: Individual)
- **Enumerated:** August 11, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 220554 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1493 CAMBRIDGE ST, Cambridge, MA 02139-1047
- **Phone:** (617) 389-6270
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1952358533, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Hebrew Seniorlife Affiliated Medical Group Inc (NPI 1477069391, Roslindale, MA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Pittsburgh School Of Medicine, class of 2001
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1205847506) · Data from the CMS NPPES public registry.