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Edit this profileWhere to find Jason A. Efstathiou, MD
- Boston location main office
Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 - Boston location
75 Francis St, Boston, MA 02115
About Dr. Efstathiou
Based in Boston, MA, Jason A. Efstathiou, MD is listed in the NPI registry under radiation oncology. Jason graduated from Harvard Medical School in 2003. Medicare claims data shows Jason provided 2,766 services to 970 patients. The services billed most often include ct guidance for insertion of radiation therapy fields, calculation of radiation therapy dose, and radiation treatment management, 5 treatment sessions. NPI 1598967523 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (617) 726-1160
- Email not available
Practice Locations
MASSACHUSETTS GENERAL HOSPITAL 55 FRUIT STREET
Boston, MA 02114
75 Francis St
Boston, MA 02115
Conditions Commonly Evaluated or Treated
Within Radiation Oncology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cancer care
Most searched conditions
Benign condition
Blood and lymph cancer
Bone cancer
Brain tumors
Cancer emergencies
Chest cancer
Endocrine cancer
Eye cancer
Eye conditions
Foot conditions
Gastrointestinal cancer
- Anal cancer
- Bile duct cancer
- Colon cancer
- Esophageal cancer
- Gallbladder cancer
- Liver cancer
- Pancreatic cancer
- Stomach cancer
Gynecologic cancer
Head & neck cancer
Head and neck cancer
Metastatic cancer
Neurologic condition
Orthopedic conditions
Sarcoma
Skin cancer
Thoracic cancer
Urologic cancer
Vascular conditions
Procedures & services
Most searched procedures
Advanced radiation
Benign treatment
Brain radiation
Cancer treatment
Central nervous system
Consultation
External radiation
- Electron beam therapy
- Image-guided radiation (IGRT)
- IMRT (Targeted intensity radiation)
- RapidArc / VMAT radiation
- Total body irradiation (TBI)
Eye cancer treatment
Follow-up care
Heart treatments
Internal radiation
Pain and symptom relief
Particle therapy
Precision radiation
- Adaptive radiation therapy
- Heart-sparing breath hold radiation (DIBH)
- Spine radiosurgery
- Stereotactic body radiation (SBRT)
- Stereotactic radiosurgery (SRS)
- Tattoo-free radiation
Prostate cancer treatment
Prostate protection
Radiation therapy
Skin cancer treatment
Skin lymphoma treatment
Specialized radiation
Targeted isotopes
Targeted radiation drugs
Treatment planning
Procedures Most Often Billed to Medicare
2,766 services · 970 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
1,274 | More than most peers in Radiation Oncology |
| Calculation of radiation therapy dose | Imaging | 77300 |
308 | More often than most peers in Radiation Oncology |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
244 | More often than most peers in Radiation Oncology |
| Design and construction of complex radiation treatment device | Imaging | 77334 |
152 | More often than most peers in Radiation Oncology |
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
113 | More than most peers in Radiation Oncology |
| Design and construction of simple radiation treatment device | Imaging | 77332 |
77 | More than most peers in Radiation Oncology |
| Complex radiation therapy planning | Imaging | 77263 |
77 | More often than most peers in Radiation Oncology |
| High precision radiation therapy planning | Imaging | 77301 |
64 | More often than most peers in Radiation Oncology |
| Design and construction of radiation treatment device for high precision radiation therapy | Imaging | 77338 |
47 | As often as other peers in Radiation Oncology |
| 3d radiation therapy planning | Imaging | 77295 |
46 | More often than most peers in Radiation Oncology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other radiation oncologists in Boston 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Ct guidance for insertion of radiation therapy fields 7
Providers in MA who bill this service to Medicare most often.
Common questions
What does Dr. Efstathiou specialize in?
Dr. Efstathiou is a radiation oncologist in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Radiation Oncology”.
NPI registry
Where is Dr. Efstathiou located?
Dr. Efstathiou is listed at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Efstathiou's phone number?
The number on file is (617) 726-1160. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Efstathiou?
Dr. Efstathiou's National Provider Identifier is 1598967523. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Efstathiou go to medical school?
Dr. Efstathiou attended Harvard Medical School, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Efstathiou have?
Dr. Efstathiou has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Efstathiou do most often?
According to Medicare billing data, Dr. Efstathiou performs imaging including ct guidance for insertion of radiation therapy fields and calculation of radiation therapy dose, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Efstathiou's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Efstathiou. If this is you, claiming it is free.
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