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COVID-19 Update

Due to interest in the COVID-19 vaccines, we are experiencing an extremely high call volume. Please understand that our phone lines must be clear for urgent medical care needs. We are unable to accept phone calls to schedule COVID-19 vaccinations at this time. When this changes, we will update this website. Our vaccine supply remains limited. Read all COVID-19 Vaccine Information.

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Mary A Pieprzak, M.D.

Headshot of Mary A Pieprzak


Kidney Diseases, Nephrology


Mid-Atlantic Nephrology Associates

Appointment Phone: 410-772-8822
5999 Harpers Farm Road
Suite W250
Columbia, MD 21044 map
Fax: 410-772-9274



  • MD; SUNY at Buffalo School of Medicine (1989)


  • Internal Medicine; UConn John Dempsey Hospital (1993)


  • Nephrology; Boston Medical Center (1996)
  • Hypertension; Boston Medical Center (1995)

Board Certifications

  • American Board of Internal Medicine (Nephrology) (1996)

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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