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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).

Patient Reviews

Patient comments (18)

The overall average patient rating of Dr. Karen Maser is Average. Dr. Maser has been reviewed by 35 patients who have provided 18 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 3.4
Promptness 2.1
Courteous Staff 3.9
Accurate Diagnosis 3.9
Bedside Manner 3.8
Spends Time with Me 3.8
Follows Up After Visit 3.5

Specialties & Research

Dr. Karen Maser, MD is board certified in Obstetrics & Gynecology.

  • She has special expertise in 5 areas:
  • Dizziness
  • Hot Flashes
  • Laryngoscopy
  • Menopause
  • Sleep Apnea (Sleep Apnea Syndromes)

Education & Awards

Dr. Maser graduated from George Washington University. She has 1 awards.

Patients' Choice Award (2008)


Dr. Maser has 3 hospital affiliations:

  • Inova Alexandria Hospital 
  • Inova Fairfax Hospital 
  • Reston Town Center Pediatrics 


  • English
  • German
  • Russian

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Additional Information
Dr. Karen Roberta Maser MD is a female Obstetrician & Gynecologist, has 17 years of experience and practices in Obstetrics & Gynecology.
Where does Dr. Karen R. Maser practice?
Dr. Karen Maser has 1 office location.
Dr. Karen Maser practices Obstetrics & Gynecology near Fairfax, VA.
See Fairfax Obstetricians & Gynecologists.