DR. ATHE MICHAELNOEL TSIBRIS MD
NPI 1316928773
Internal Medicine - Infectious Disease in Boston, MA
About Dr. Athe Michaelnoel Tsibris Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ATHE MICHAELNOEL TSIBRIS MD (NPI 1316928773) is an individual infectious disease provider in Boston, Massachusetts, licensed in Massachusetts (222739) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of University Of South Florida College Of Medicine (1998).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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. Athe Michaelnoel Tsibris 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
2Medicare enrollment records show Athe Tsibris reassigns Medicare billing to 2 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 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 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 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Brigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Athe Tsibris's NPI number?
The NPI number for Athe Tsibris is 1316928773. It was assigned to this individual provider in the NPPES registry on November 10, 2005.
Where is Athe Tsibris located?
Athe Tsibris practices at 55 Fruit Street Grj 504, Boston, MA 02114. The listed phone number is (617) 726-3812.
What is Athe Tsibris's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Athe Tsibris enrolled in Medicare?
Yes. Athe Tsibris 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 Athe Tsibris's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Athe Tsibris reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and Brigham & Womens Physicians Organization Inc (Boston, MA). 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 Athe Tsibris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Athe Tsibris accept?
Health plans from Taro Health list Athe Tsibris 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 Athe Tsibris affiliated with any hospitals?
According to CMS data, Athe Tsibris is affiliated with Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Athe Tsibris was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Athe Michaelnoel Tsibris, MD · NPI 1316928773
Infectious Disease physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since November 10, 2005.
## Identity
- **NPI:** 1316928773 (Entity type: Individual)
- **Enumerated:** November 10, 2005
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 222739 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT STREET, GRJ 504, Boston, MA 02114-2696
- **Phone:** (617) 726-3812 · **Fax:** (617) 726-7416
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Florida College Of Medicine, class of 1998
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Other 470152 (MA); Other J28227 (MA); Medicaid 2087600 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1316928773) · Data from the CMS NPPES public registry.