Our Doctors

Naugatuck Valley Radiology offers the advantage of 14 experienced radiologists – doctors with advanced training who perform diagnostic procedures, interpret diagnostic images and work with your healthcare provider to diagnose medical problems. Our radiologists work carefully, accurately—and quickly—to get you the answers you need. It is this dedication that has put Naugatuck Valley Radiology at the forefront of diagnostic imaging for more than 35 years.

Our board-certified radiologists participate in ongoing training and accreditation programs to stay current on the latest developments in their field. They offer extensive experience in all areas of diagnostic imaging including these specialties:

  • Body/Cross Sectional Imaging
  • CT
  • Diagnostic Radiology
  • Interventional Radiology
  • MRI
  • Musculoskeletal
  • Nuclear Medicine
  • Neuroradiology
  • Pediatric Radiology
  • Ultrasound
  • Vascular
  • Women’s Imaging

Carolyn Zajac Ajemian, M.D.

Primary Specialty:
Body Imaging and Mammography

Undergraduate Education:
Providence College, Rhode Island

Medical Degree:
Eastern Virginia Medical School

Internship:
State University of New York University Hospital & Medical Center, Stony Brook, NY

Residency:
State University of New York University Hospital & Medical Center, Stony Brook, NY

Board Certification:
American Board of Radiology




Matthew E. Bushey, M.D.

Primary Specialty: Cross Sectional-Imaging, Mammography, Ultrasound

Undergraduate Education: Holy Cross College, Worcester, MA

Master’s Degree: Yale Medical School, New Haven, CT, PA Certificate

Medical Degree: University of Connecticut School of Medicine

Internship: Waterbury Hospital, Yale University, New Haven, CT

Residency: Hospital of St. Raphael, Yale University, New Haven, CT

Board Certification: American Board of Radiology




Gregory D. Gersten, M.D.

Primary Specialty:
Vascular and Interventional Radiology

Undergraduate Education:
Brown University, Providence, RI

Medical Degree:
Columbia College of Physicians and Surgeons, New York, NY

Internship:
Columbia Presbyterian Medical Center, New York, NY

Residency:
USC, LA County Medical Center, Los Angeles, CA

Fellowships:
Cross Sectional Imaging, University of California Irvine; Vascular and Interventional Radiology, University of Mississippi Medical Center

Board Certification:
American Board of Radiology, National Board of Medical Examiners, Vascular and Interventional Radiology CAQ




Robert Gumbardo, M.D.

Primary Specialty:
Cross-Sectional Imaging, Diagnostic Radiology,
Mammography, Ultrasound, MRI

Undergraduate Education:
Fairfield University, Fairfield, CT

Medical Degree:
Loyola-Stritch School of Medicine, Chicago, IL

Internship:
St. Vincent’s Medical Center, New York, NY

Residency:
Hospital of St. Raphael, New Haven, CT

Fellowship:
Ultrasound and Computed Tomography, Hospital of St. Raphael, New Haven, CT

Board Certification:
American Board of Radiology




Jeffrey H. Hawley, M.D.

Primary Specialty:
Interventional Radiology

Undergraduate Education:
University of South Dakota

Medical Degree:
University of South Dakota

Internship:
Surgical, Iowa Methodist Medical Center, Des Moines, IA

Residency:
Temple University Hospital, Philadelphia, PA

Fellowship:
Molecular Biology, Human Gene Therapy Research Institute at Iowa Methodist Medical Center; Interventional Radiology, Yale-New Haven Hospital

Board Certification:
American Board of Radiology, Vascular and Interventional Radiology CAQ




Bipin Jagjivan, M.D.

Primary Specialty:
CT, MRI, and Ultrasound

Education:
M.B., Ch. B., Leicester, U.K. F.R.C.R., Royal College of Radiologists, London, United Kingdom, Diplomat American Board of Radiology

Internship:
University of Leicester Teaching Hospitals, United Kingdom

Residency:
Registrar in Radiology, University of Sheffield Teaching Hospitals; Senior Registrar, Trent Regional Authority, Sheffield, United Kingdom

Fellowship:
Body Imaging, University of Connecticut Health Center, Farmington, CT

Board Certifications:
American College of Radiology




Mark Gregory Johnson, M.D.

Primary Specialty:
Diagnostic Ultrasound, Computed Tomography, Digital Imaging and Mammography

Undergraduate Education:
Duke University, Durham, NC

Medical Degree:
University of Cincinnati College of Medicine

Internship:
Hospital of St. Raphael, New Haven, CT

Residency:
Hospital of St. Raphael, New Haven, CT, Chief Resident

Fellowship:
Ultrasound and Computed Tomography, Hospital of St. Raphael, New Haven, CT

Board Certification:
American Board of Radiology




Bradley G. Leypold, M.D.

Primary Specialty:
MRI

Undergraduate Education:
Northwestern University, Evanston, IL

Medical and Doctorate Degrees:
Columbia University, New York, NY

Internship:
Albert Einstein Medical Center, Philadelphia, PA

Residency:
Thomas Jefferson University Hospital, Philadelphia, PA

Fellowship:
MRI, Thomas Jefferson University Hospital, Philadelphia, PA

Board Certification:
American Board of Radiology




Michael Kevin Malin, M.D.

Primary Specialty:
Cross-Sectional Imaging, Nuclear Medicine

Medical Degree:
Hillbrow Hospital, Johannesburg, South Africa

Internship:
University of Witwatersrand, Johannesburg, South Africa

Residency:
Hillbrow Hospital, Johannesburg, South Africa

Fellowship:
Cross-Sectional Imaging, Hospital of St. Raphael; Nuclear Medicine, Yale New Haven Hospital

Board Certification:
American Board of Radiology with special competency in Nuclear Medicine; Fellow of the South African College of Medicine (Diagnostic Radiology)




Geoffrey L. Manton, M.D.

Primary Specialty:
CT and MRI

Undergraduate Education:
Miami University, Oxford, OH

Medical Degree:
Jefferson Medical College, Philadelphia, PA

Internship:
Albert Einstein Medical Center, Philadelphia, PA

Residency:
Thomas Jefferson University Hospital, Philadelphia, PA

Fellowship:
MRI, Thomas Jefferson University Hospital, Philadelphia, PA

Board Certification:
American Board of Radiology, USMLE
Steps 1-3




Paolo Olcese, M.D.

Primary Specialty:
MRI, CT, Ultrasound

Undergraduate Education:
Ohio State University

Master Degree:
Texas A&M University, MS in Genetics

Medical Degree:
University of Vermont College of Medicine

Internship:
Medical Center Hospital of Vermont

Residency:
St. Vincent’s Hospital, Worcester, MA

Fellowship:
Cross Sectional Imaging, Brown University, Rhode Island Hospital

Board Certification:
American Board of Radiology




Scott Segal, M.D.

Primary Specialty:
Cross-Sectional Imaging, Interventional Radiology,
Mammography, Ultrasound

Undergraduate Education:
Union College, Schenectady, NY

Medical Degree:
Albert Einstein College of Medicine, Bronx, NY

Internship:
Danbury Hospital, Yale School of Medicine, New Haven, CT

Residency:
Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY

Fellowship:
Vascular and Interventional Radiology, Montefiore Medical Center, Bronx, NY

Board Certification:
American Board Radiology, Vascular and Interventional Radiology CAQ




Mahadevan S. Shetty, M.D.

Primary Specialty:
Specializes in neuroradiology with additional expertise
in post-operative spinal disorders

Medical Degree:
Seth G.S. Medical and K.E.M. Hospital, Bombay, India

Internship:
K.E.M. Hospital, Bombay, India

Residency:
Orthopedic Surgery, K.E.M. Hospital; Surgical, St. Mary’s Hospital, Waterbury, CT; Diagnostic
Radiology, Morristown Memorial Hospital

Fellowship:
Neuroradiology, New York Hospital-Cornell Medical Center and Sloan-Kettering Cancer Center

Board Certification:
American Board of Radiology, Senior Member American Society of Neuroradiology




Yeo Yang Shin, M.D.

Primary Specialty:
Women’s Imaging

Undergraduate Education:
Duke University, Durham, NC

Medical Degree:
University of Alabama School of Medicine, Birmingham, AL

Internship:
University of Maryland Medical System, Baltimore, MD

Residency:
University of Arizona Medical Center, Tucson, AZ; Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY

Subspecialty Fellowship:
Women’s Imaging, Hospital of University of Pennsylvania

Board Certification:
American Board of Radiology