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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 (2)

The overall average patient rating of Dr. Stephen Ruoss is Good. Dr. Ruoss has been reviewed by 7 patients who have provided 2 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.0
Promptness 3.0
Courteous Staff 4.3
Accurate Diagnosis 2.3
Bedside Manner 1.0
Spends Time with Me 2.0
Follows Up After Visit 2.0

Specialties & Research

Dr. Stephen Ruoss, MD is board certified in Internal Medicine.

  • He has special expertise in 3 areas:
  • Asthma
  • Lung Diseases
  • Mast-Cell Cancer (Mast-Cell Sarcoma)

Education & Awards

Dr. Ruoss graduated from University of Washington, Seattle.


Dr. Ruoss has 5 hospital affiliations:

  • UCSF Medical Center / Moffitt-Long Hospitals 
  • Lucile Salter Packard Children's Hospital @ Stanford 


  • Spanish

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Additional Information
Dr. Stephen John Ruoss MD is a male Internist, has 30 years of experience and practices in Internal Medicine and Pulmonary Disease.
Where does Dr. Stephen J. Ruoss practice?
Dr. Stephen Ruoss has 2 office locations.
Dr. Stephen Ruoss practices Internal Medicine and Pulmonary Disease near Palo Alto, CA.
See Palo Alto Internists and Palo Alto Pulmonologists.