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Global IT Outage

As reported, a global IT outage is affecting many industries. Baystate Health is NOT experiencing significant disruptions at this time, and we continue to safely provide services.

Claes M. Nilsson, MD

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Medical Oncology, Hematology
Accepting New Patients
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Background and Clinical Focus





Age Groups Seen:

Adults, Geriatrics

Provider Affiliation:

Baystate Medical Center

Practice Groups:

Vantage Healthcare

Education and Training

Fletcher Allen Health Care*

Residency, MD, 1977

Yale University School of Medicine*

Medical School, MD, 1973

University of California, Office of Continuing Education*

Fellowship, MD, 1981

Board Certifications
Internal Medicine

American Board of Internal Medicine

Medical Oncology

American Board of Internal Medicine


American Board of Internal Medicine

Patient Ratings

Patient Experience Ratings

Our patient experience rating is an average of all responses to care provider related questions from our nationally-recognized Press Ganey Patient Experience Survey. Response are measured on a scale of 1 to 5, with 5 being the best score.

Overall Rating
out of 5 ( Ratings)
Review Categories
Patient Comments

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