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BRENDAN TIMOTHY O'SULLIVAN
NPI 1679151492
Radiology - Diagnostic Radiology in Boston, MA

Active since April 01, 2021PECOS Enrolled

NPPES record last updated: May 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 29, 2026, May 16, 2026, Apr 1, 2021 (3 updates tracked since 2021).

About Brendan Timothy O'sullivan NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRENDAN TIMOTHY O'SULLIVAN (NPI 1679151492) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Massachusetts (1025893) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Chicago College Of Osteopathy (2021).

NPPES Registry Identity

NPI1679151492
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameBRENDAN TIMOTHY O'SULLIVAN
Location Address55 FRUIT STBoston, MA 02114-2621
Mailing Address55 Fruit StBoston, MA 02114-2621
Phone(630) 297-1318
Sole ProprietorYes
Medical School CMSChicago College Of OsteopathyGraduated 2021
Enumeration DateApril 1, 2021
Last NPPES UpdateMay 29, 20263 updates tracked since enumeration
NPPES CertifiedMay 29, 2026
✔ NPI 1679151492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in MA · 1025893
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
55 FRUIT ST, Boston, MA 02114
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Brendan Timothy O'sullivan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9537639992
PECOS Enrollment IDI20260527000689
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.

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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
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.

STUTI GIRISH SHROFF MD, MBBS
Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2971
NANCY WANG M.D.
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (017) 724-4000
DR. DUSAN HANIDZIAR M.D., PH.D.
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Suffolk County (617) 726-3030
JOHN JOSEPH DANKO DO
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2000
DR. MICHAEL ANDREW LOBRITZ M.D, PH.D.
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Suffolk County (617) 724-9248
MS. KELLY ELISHA TRECARTIN NP
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Suffolk County (617) 726-7400
JAMIE MARIE ALLEN NP
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 724-4410
DR. DHAVAL SANJEEV KOLTE M.B.B.S., PH.D.
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 643-3238

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 Brendan O'sullivan's NPI number?

The NPI number for Brendan O'sullivan is 1679151492. It was assigned to this individual provider in the NPPES registry on April 1, 2021.

Where is Brendan O'sullivan located?

Brendan O'sullivan practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (630) 297-1318.

What is Brendan O'sullivan's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Brendan O'sullivan enrolled in Medicare?

Yes. Brendan O'sullivan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Brendan O'sullivan was last updated on May 29, 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.