Doctor profile · Federal record
Dr. Michael Cassidy, M.D.
Surgical Oncology Physician (CMS: Surgical Oncology) · Surgery Physician · Boston, MA
- NPI 1114186905
- 18 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
88 E Newton St, C515
Boston, MA 021182308
(617) 638-8442
Credentials & registration
- NPI registered
- June 2008 — 18 yrs on file
- Profile last updated
- February 17, 2017
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 2086X0206X — NUCC code
- State license (1)
- Massachusetts #243921
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1114186905. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
134
Distinct HCPCS
6
Medicare allowed
$22,423
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 70 | 66 | $70 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $142 | |
19301 |
Partial removal of breast | 12 | 11 | $712 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 12 | 12 | $193 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 12 | 12 | $104 | |
38525 |
Biopsy or removal of deep lymph nodes of underarm | 11 | 11 | $272 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 27. This provider delivers 5.0× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Michael Cassidy's medical specialty?
Dr. Michael Cassidy practices Surgical Oncology Physician in Boston, MA.
Where does Dr. Michael Cassidy practice?
Dr. Michael Cassidy practices at 88 E Newton St, Boston, MA 021182308. Office phone: 6176388442.
What is Dr. Michael Cassidy's NPI?
Dr. Michael Cassidy's National Provider Identifier (NPI) is 1114186905, issued by NPPES.
Does Dr. Michael Cassidy accept Medicare assignment?
Dr. Michael Cassidy does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Michael Cassidy commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204); Partial removal of breast (HCPCS 19301). Source: CMS Medicare Physician & Other Practitioners file.