Browse Health
Radiologist, Radiation Oncology, Oncology Specialist (cancer)
32 years of experience
Accepting new patients
Video profile
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. John Spera is Good. Dr. Spera has been reviewed by 5 patients who have provided 1 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 3.7
Follows Up After Visit 5.0

Specialties & Research

Dr. John Spera, MD is board certified in Radiation Oncology.

  • He has special expertise in 4 areas:
  • Breast Cancer
  • Cancer
  • Metastatic Breast Cancer
  • Prostate Cancer (Prostatic Neoplasm)

Education & Awards

Dr. Spera graduated from Georgetown University, Washington. He has 2 awards.

Castle Connolly Top Doctors: New York Metro Area™ (1999 - 2008, 2010 - 2015)
On-Time Doctor Award (2015)


Dr. Spera has 4 hospital affiliations:

  • Danbury Hospital 
  • New Milford Hospital 


  • French
  • Spanish

> > > > Dr. John Spera, MD

Similar doctors nearby

Dr. Seema Sanghavi

Medical Oncology
16 years experience
Danbury, CT

Dr. John Loh

Therapeutic Radiology
44 years experience
Danbury, CT

Dr. Joseph Santoro

Diagnostic Radiology
14 years experience
Danbury, CT

Dr. Neil Srivastava

Diagnostic Radiology
8 years experience
Danbury, CT

Dr. Thorsten Krebs

Diagnostic Radiology
26 years experience
Danbury, CT

Dr. Adam Welber

Diagnostic Radiology
17 years experience
Danbury, CT
Search All Similar Doctors
Additional Information
Dr. John A Spera MD is a male Radiation Oncologist, has 32 years of experience and practices in Radiation Oncology.
Where does Dr. John A. Spera practice?
Dr. John Spera has 1 office location.
Dr. John Spera practices Radiation Oncology near Danbury, CT.
See Danbury Radiologists.