DR. CHINONSO BEST AGUBOSIM MD
NPI 1154988392
Emergency Medicine in Boston, MA
About Dr. Chinonso Best Agubosim Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHINONSO BEST AGUBOSIM MD (NPI 1154988392) is an individual emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (1013660) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Cambridge Health Alliance, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
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
Dr. Chinonso Best Agubosim 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 Reassignments
11Medicare enrollment records show Chinonso Agubosim reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1952358533 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 247 clinicians in this Medicare group
Cambridge, MA 02139
- Reassigned Medicare billing, Massachusetts enrollment
- 719 clinicians in this Medicare group
Milton, MA 02186
- Reassigned Medicare billing, Massachusetts enrollment
- 177 clinicians in this Medicare group
Ayer, MA 01432
- Reassigned Medicare billing, Massachusetts enrollment
- 290 clinicians in this Medicare group
Worcester, MA 01608
- Reassigned Medicare billing, Massachusetts enrollment
- 90 clinicians in this Medicare group
Derry, NH 03038
- Reassigned Medicare billing, New Hampshire enrollment
- 145 clinicians in this Medicare group
Wolfeboro, NH 03894
- Reassigned Medicare billing, New Hampshire enrollment
- 48 clinicians in this Medicare group
Springfield, VT 05156
- Reassigned Medicare billing, Vermont enrollment
- 153 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 5
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cambridge Health Alliance
Acute Care Hospitals · Cambridge, MAParkland Medical Center
Acute Care Hospitals · Derry, NHPortsmouth Regional Hospital
Acute Care Hospitals · Portsmouth, NHMonadnock Community Hospital
Critical Access Hospitals · Peterborough, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 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 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02118
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 Chinonso Agubosim's NPI number?
The NPI number for Chinonso Agubosim is 1154988392. It was assigned to this individual provider in the NPPES registry on May 23, 2019.
Where is Chinonso Agubosim located?
Chinonso Agubosim practices at 1 Boston Medical Ctr Pl Fl Place1, Boston, MA 02118. The listed phone number is (617) 414-5405.
What is Chinonso Agubosim's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Chinonso Agubosim enrolled in Medicare?
Yes. Chinonso Agubosim 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 Chinonso Agubosim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chinonso Agubosim reassigns Medicare benefits to 11 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Beth Israel Deaconess Medical Center, Inc. (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), Cambridge Public Health Commission (Cambridge, MA), Bid-Milton Physician Associates Inc (Milton, MA) and 6 more organizations, 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 Chinonso Agubosim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Chinonso Agubosim accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Taro Health, WellSense Health Plan and Wellmark Health Plan of Iowa, Inc. list Chinonso Agubosim 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 Chinonso Agubosim affiliated with any hospitals?
According to CMS data, Chinonso Agubosim is affiliated with Cambridge Health Alliance, Parkland Medical Center, Portsmouth Regional Hospital and Monadnock Community Hospital.
When was this NPI record last updated?
The NPPES record for Chinonso Agubosim was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Chinonso Best Agubosim, MD · NPI 1154988392
Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 23, 2019.
## Identity
- **NPI:** 1154988392 (Entity type: Individual)
- **Enumerated:** May 23, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 1013660 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1 BOSTON MEDICAL CTR PL FL PLACE1, Boston, MA 02118-2908
- **Phone:** (617) 414-5405
## 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:** 11 organizations under Medicare reassignment (form CMS-855R): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1861216038, Boston, MA); Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1316987993, Boston, MA); Cambridge Public Health Commission (NPI 1487603585, Cambridge, MA); Bid-Milton Physician Associates Inc (NPI 1184312738, Milton, MA); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Toledo College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** August 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1154988392) · Data from the CMS NPPES public registry.