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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 (4)

The overall average patient rating of Dr. Louis Klein is Good. Dr. Klein has been reviewed by 13 patients who have provided 4 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 2.7
Courteous Staff 4.2
Accurate Diagnosis 3.7
Bedside Manner 3.9
Spends Time with Me 3.5
Follows Up After Visit 3.5

Specialties & Research

Dr. Louis Klein, MD is board certified in Obstetrics & Gynecology.

  • He has special expertise in 3 areas:
  • Hot Flashes
  • Infertility
  • Menopause

Education & Awards

Dr. Klein graduated from University of Pittsburgh . He has 1 awards.

Castle Connolly's Top Doctors™ (2012 - 2013)


Dr. Klein has 10 hospital affiliations:

  • John Muir Medical Center, Concord Campus 
  • John Muir Medical Center, Walnut Creek Campus 


  • Chinese
  • Spanish

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Additional Information
Dr. Louis Arthur Klein MD is a male Obstetrician & Gynecologist, has 41 years of experience and practices in Obstetrics & Gynecology.
Where does Dr. Louis A. Klein practice?
Dr. Louis Klein has 6 office locations.
Dr. Louis Klein practices Obstetrics & Gynecology near Walnut Creek, CA.
Additional practice locations include: San Ramon, CA and Danville, CA.
See Walnut Creek Obstetricians & Gynecologists.