Dr. Maria M. Lonshteyn


(1 review)
Accepting new patients 13 years of experience Offers telehealth


Dr. Maria M. Lonshteyn is an Internist (Gastroenterologist) in Leominster, MA. She specializes in Gastroenterology, has 13 years of experience, and is board certified. She graduated from University Hospitals Case Medical Center and she is affiliated with Health Alliance Clinton Hospital and Health Alliance Hospital Leominster.

Dr. Lonshteyn works at Umass Memorial Healthalliance-clinton Hospital. She frequently treats conditions like Constipation, Diarrhea along with other...

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Very High
Learn more about Constipation View other providers who treat this condition
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Treatment Frequency

Very High
Learn more about Diarrhea View other providers who treat this condition
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Treatment Frequency

Learn more about Dysphagia View other providers who treat this condition

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Based on 1 review

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out of 5

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out of 5

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out of 5

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out of 5

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1 review

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1 star
Apr 10, 2018

I had a wonderful experience with Dr. Lonshteyn & staff. The doctor is very thorough and listens to problems.

The facility itself is very calming - The atrium makes me feel like I'm in Hawaii! I would definitely recommend.

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About Dr. Maria M. Lonshteyn


  • Gastroenterology

Years of Experience

13 years of experience

Languages Spoken

  • English



NPI Number


Education & Certifications


  • University Hospitals Case Medical Center

Board Certifications

  • ABMS
  • Gastroenterology
  • Internal Medicine


Umass Memorial Healthalliance-clinton Hospital

60 Hospital Rd,

Leominster, MA 01453


Admitting Hospitals

  • Health Alliance Clinton Hospital
  • Health Alliance Hospital Leominster

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