- Arthur M Sher MD
- Charles Sommer MD
- Daniel Dress PC
- Demosthenes Dasco MD
- Dermatology & Laser Ctr
- Ear Nose & Throat Assoc
- Eyesight & Surgery Assoc
- Family Eye Care Ctr
- Fitzpatrick-Moran-Costa
- Gregory J Gallivan MD
- Haines & Belcastro
- Hampden County Physician Assoc
- Hampden County Physician Assoc
- Hampden County Physician Assoc
- Ingis Eye Care
- Ingis Eye Care
- Keenan Malladi & O'Neill
- Kevin E Schmidt MD
- Kollegal S Murthy MD
- Luz M Martin & Assoc
- Maple Medical Assoc
- Mercy Hospital Radiology
- Moris Pardo MD
- New England Neurosurgical
- New England Orthopedic Srgns
- New England Path Assoc
- New England Surgical Group
- Occupational Health & Rehab
- Pediatric Care Assoc
- Pioneer Valley Cardiology
- Pioneer Valley Nephrology
- Pioneer Valley Urology
- R & S Cardiology & Internal
- Retina Consultants
- Riverbend Medical Group
- Robert H Osofsky MD
- Robert L Goodman MD
- Robert P Hoffman MD
- Savvas Papazoglou MD
- Springfield Eye Assoc Inc
- Springfield Medical Assoc
- Springfield Neurology Assoc
- Stafford Pediatrics Assoc
- Steven A Silver MD
- Titus Clarke & Hansen Ortho
- Total Family Eye Care
- Urology Group Of W New England
- Valley Neurological Surgery PC
- Valley Pulmonary Medical Assoc
- Vascular Services-Western Ne
- Vincent Guardione MD
- Vincent M Perrone MD
- Western Massachusetts Assoc
- Western Massachusetts Med Grp
- Women's Health & Education Ctr
- Workwise Occupational Health
