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You May Experience a Little Extra Wait Time

We’ve recently updated our electronic health record and other systems to better support your care. We appreciate your patience and understanding as we work through this change and look forward to caring for you!

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Information about Mercy Medical Center’s Transition to Baystate Health

Mercy Medical Center and its affiliated medical group practices joined Baystate Health on November 1, 2026.

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Cheryl B. Greenstein, PA

Provider Headshot
Urgent Care, Convenient Care, Emergency Medicine
Member of Baystate Medical Practices
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Background and Clinical Focus

Languages:

English

Gender:

Female

Age Groups Seen:

Adults

Provider Affiliation:

Baystate Medical Center

Practice Groups:

Baystate Convenient Care, Baystate Emergency Medicine

Insurances Accepted

Note:

Baystate Healthcare facilities and physicians accept most insurances. Please contact your insurance company to verify eligibility.

  • UNICARE GIC
  • BMC HEALTHNET MCO
  • BMC HEALTHNET ACO
  • COMMONWEALTH CARE ALLIANCE
  • MA MEDICAID
  • MEDICARE
  • BLUE SHIELD MEDICARE ADV
  • BLUE SHIELD PPO IND
  • CONNECTICARE
  • AETNA
  • RAILROAD MEDICARE
  • HMO BLUE
  • FALLON ACO
  • UNITED HEALTHCARE
  • TRICARE
  • CELTICARE
  • FALLON NON MASS HEALTH

Education and Training

Long Island University Brooklyn

Residency, P.A., 1982

Board Certifications

Physician Assistant

National Commission on Certification of Physician Assistants

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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