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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).

Learn more about Dr. Ruth Diaz:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Ruth Diaz is Good. Dr. Diaz has been reviewed by 5 patients who have provided 1 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.0
Courteous Staff 3.7
Accurate Diagnosis 4.7
Bedside Manner 4.7
Spends Time with Me 3.7
Follows Up After Visit 3.7

Specialties & Research

Dr. Ruth Diaz, MD is board certified in Psychiatry.

  • She 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. Diaz graduated from University Of The Philippines Manila.


Dr. Diaz has 3 hospital affiliations:

  • Saint Joseph Mercy Hospital 
  • Saint Joseph Mercy Livingston Hospital 
  • St. Joseph Mercy Ann Arbor 


  • Spanish

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Additional Information
Dr. Ruth Bautista Diaz MD is a female Psychiatrist, has 41 years of experience and practices in Psychiatry.
Where does Dr. Ruth B. Diaz practice?
Dr. Ruth Diaz has 1 office location.
Dr. Ruth Diaz practices Psychiatry near Ypsilanti, MI.
See Ypsilanti Psychiatrists.