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Family Practitioner, Primary Care Doctor, Psychiatrist
12 years of experience
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Samuel Preston:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Samuel Preston is Excellent. Dr. Preston has been reviewed by 3 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.7
Courteous Staff 4.7
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Samuel Preston, DO is board certified in Family Medicine and Psychiatry.

  • He has special expertise in 7 areas:
  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Bipolar Disorder / Manic Depressive Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Schizophrenia
  • Sleep Disorders

Education & Awards

Dr. Preston graduated from Lake Erie College of Osteopathic Medicine at Erie.


Dr. Preston has 4 hospital affiliations:

  • Walter Reed Army Medical Center 
  • Nnmc 

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Additional Information
Dr. Samuel L Preston DO is a male Family Practitioner, has 12 years of experience and practices in Family Medicine and Psychiatry.
Where does Dr. Samuel L. Preston practice?
Dr. Samuel Preston has 1 office location.
Dr. Samuel Preston practices Family Medicine and Psychiatry near Washington, DC.
See Washington Family Physicians and Washington Psychiatrists.