Maryland Primary Care Physicians at Arnold offers high-quality, comprehensive medical care to patients of all ages, with emphasis on preventive care.

Our providers are board-certified in family practice, with extensive experience in all aspects of primary care: pediatrics, internal medicine and family health. More on our services and policies.

News and Announcements

  • National Prescription Drug Take Back Day

    Saturday, April 28 – 10 a.m. to 2 p.m. 

    If you have prescription medications that you are no longer taking, be sure to dispose of them at a collection site near you. The sites are located across Maryland and are not affiliated with MPCP.

    National Prescription Drug Take Back Day aims to provide a safe, convenient, and responsible means of disposing of prescription drugs, while also educating the general public about the potential for abuse of medications.

  • Arnold Office Hours

    We have extended office hours Monday through Thursday 5-8 pm to meet the needs of our patients.

Office Info

1509 Ritchie Highway

Arnold, Maryland 21012

Phone Numbers
Office Hours

Practice Manager:

Pam Ditch

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  • If you need immediate assistance, please call your practice directly. FOR MEDICAL EMERGENCIES, dial 911

Our Doctors

John A. Billon, M.D.

  • In Practice Since: 2002
  • Medical Degree: Jefferson Medical School
  • Residency Program: St. Peters University Hospital
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Lisa Goldberg Keithley, M.D.

  • In Practice Since: 2000
  • Medical Degree: Drexel University College of Medicine
  • Residency Program: Chestnut Hill Hospital
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Amanda K. Malone, M.D.

  • In Practice Since: 2005
  • Medical Degree: Wake Forest University School of Medicine
  • Residency Program: Stamford Hospital
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Victor M. Plavner, M.D.

  • In Practice Since: 1984
  • Medical Degree: University of Louvain, Brussels, Belgium & George Washington University Medical Center
  • Residency Program: Franklin Square Hospital Center
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Medical Staff

Mary Ann Gardiner, CRNP

  • In Practice Since: 1995
  • Primary Specialty: Nurse Practitioner
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Julia Kimbrough, CRNP

  • In Practice Since: 2017
  • Primary Specialty: Nurse Practitioner
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Kimberly M. Morin, PA-C

  • In Practice Since: 2013
  • Primary Specialty: Physician Assistant
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Kathleen T. Ogle, CRNP

  • In Practice Since: 1995
  • Primary Specialty: Nurse Practitioner
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Izabela M. Plucinska, CRNP

  • In Practice Since: 1996
  • Primary Specialty: Nurse Practitioner
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Rachel M. Sweeney, CRNP

  • In Practice Since: 1997
  • Primary Specialty: Nurse Practitioner
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Sonya Williams, CRNP

  • In Practice Since: 2004
  • Primary Specialty: Nurse Practitioner
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