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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 (1)

The overall average patient rating of Dr. Mary Loos is Average. Dr. Loos has been reviewed by 3 patients who have provided 1 comments. The rating is 2.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.0
Promptness 1.0
Courteous Staff 2.8
Accurate Diagnosis 3.2
Bedside Manner 2.3
Spends Time with Me 1.9
Follows Up After Visit 1.9

Specialties & Research

Dr. Mary Loos, MD is board certified in Internal Medicine.

Education & Awards

Dr. Loos graduated from University of Missouri at Kansas City.


Dr. Loos has 6 hospital affiliations:

  • Arrowhead Community 
  • Del E Webb Memorial Hospital 

> > > > Dr. Mary Loos, MD

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Additional Information
Dr. Mary E Loos MD is a female Internist, has 30 years of experience and practices in Internal Medicine.
Where does Dr. Mary E. Loos practice?
Dr. Mary Loos has 4 office locations.
Dr. Mary Loos practices Internal Medicine near Phoenix, AZ.
Additional practice locations include: Poplar Bluff, MO and Dallas, TX.
See Phoenix Internists.