Dr. Cassandra Michelle Kelleher , MD
Surgery β’ Boston, MA
55 Fruit St, Warren 11
Boston, MA 021142621
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
55 Fruit St
Warren 11
Boston, MA 021142621
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2023
All general payments: $858.90 across 4 records.
By nature of payment
- Travel and Lodging: $858.90 across 4 records.
Reporting-company totals
- Eli Lilly and Company: $858.90 across 4 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Kelleher has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Kelleher as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Boston and Massachusetts
443 active clinicians are listed under Surgery with a practice address in Boston, MA (1,003 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Boston
19.6% of these 443 clinicians have the CMS telehealth indicator.
42% of these 443 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $260.86 in 2022 to $858.90 in 2023.
- 2022: $260.86
- 2023: $858.90
Sources: CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2023 (payments made January 1 β December 31, 2023): fewer than 11 records totaling $858.90.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Eli Lilly and Company |
Travel and Lodging
In-kind items and services
|
β | General | $239.67 |
| Eli Lilly and Company |
Travel and Lodging
In-kind items and services
|
β | General | $228.90 |
| Eli Lilly and Company |
Travel and Lodging
In-kind items and services
|
β | General | $227.70 |
| Eli Lilly and Company |
Travel and Lodging
In-kind items and services
|
β | General | $162.63 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20091110000657
MA
5799823894
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Anesthesiology
Internal Medicine
Student in an Organized Health Care Education/Training Program
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.), Master of Public Health
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)
Career & Practice History
NPI enumerated November 27, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Surgery Specialists in Boston
- Dr. Paul Furlow, MD, PhD
- Dr. Molly Douglas, MD
- Dr. Mussa Mohamed, MD
- Dr. Christy Cauley, MD
- Dr. Charles Yoon, MD
- Dr. Christina Klecker, MD
Mailing Address
55 Fruit St, Warren 11
Boston, MA 021142621
Phone: 6177241602