Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. ATHE MICHAELNOEL TSIBRIS MD
NPI 1316928773
Internal Medicine - Infectious Disease in Boston, MA

Active since November 10, 2005PECOS Enrolled
55 FRUIT STREET, GRJ 504, BOSTON, MA 02114(617) 726-3812(617) 726-7416 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

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

NPI1316928773
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. ATHE MICHAELNOEL TSIBRISCredential: MD
Location Address55 FRUIT STREET, GRJ 504Boston, MA 02114-2696
Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894
Fax(617) 726-7416
Sole ProprietorNo
Medical School CMSUniversity Of South Florida College Of MedicineGraduated 1998
Enumeration DateNovember 10, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1316928773 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License Licensed in MA · 222739
Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Also ListedInternal MedicineTaxonomy 207R00000X · License 222739 (MA)
55 FRUIT STREET, Boston, MA 02114

Other Identifiers 3

Other470152MA · Tufts Health Plan
OtherJ28227MA · Bcbs Ma
Medicaid2087600MA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID244292209
PECOS Enrollment IDI20041102000074
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
53 services21 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
23 services23 patients

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, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Physician 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.

New Patient
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Internal Medicine (Cardiovascular Disease)
55 FRUIT STREET, MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114
Social Worker (Clinical)
55 FRUIT STREET, FOUNDERS BUILDING SUITE 880
BOSTON, MA 02114
Physician Assistant
55 FRUIT STREET, WHITE 1
BOSTON, MA 02114
Psychiatry & Neurology (Neurology)
55 FRUIT STREET, WANG 720 (NEUROLOGY)
BOSTON, MA 02114
Pathology (Anatomic Pathology & Clinical Pathology)
55 FRUIT STREET, WRN 2 PATHOLOGY ASSOCIATES
BOSTON, MA 02114
Internal Medicine (Cardiovascular Disease)
55 FRUIT STREET, YAW 5 CARDIAC UNIT ASSOCIATES
BOSTON, MA 02114
Internal Medicine
55 FRUIT STREET, WHITE 5
BOSTON, MA 02114
Nurse Anesthetist, Certified Registered
55 FRUIT STREET, CLN 309 MGH ANESTHESIA ASSOCIATES
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.

What insurance does Athe Tsibris accept?

Health plans from Anthem Blue Cross and Blue Shield 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 with the weekly NPPES data releases published by CMS.