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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 (3)

The overall average patient rating of Dr. Alan Lyss is Excellent. Dr. Lyss has been reviewed by 15 patients who have provided 3 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.8
Promptness 4.6
Courteous Staff 5.0
Accurate Diagnosis 4.8
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Alan Lyss, MD is board certified in Internal Medicine and Medical Oncology.

  • He has special expertise in 11 areas:
  • Adjuvant Chemotherapy
  • Breast Cancer
  • Cancer
  • Clinical Research
  • Epidemiology
  • Gastrointestinal Cancer
  • Glandular Cancer (Adenocarcinoma)
  • Lung Cancer
  • Lung Cancer (Non-Small-Cell Lung Carcinoma)
  • Metastatic Breast Cancer
  • Metastatic Cancer

Education & Awards

Dr. Lyss graduated from Washington University at St. Louis, Saint Louis. He has 5 awards.

Castle Connolly's Top Doctors™ (2013)
Patients' Choice Award (2011, 2014 - 2015)
Compassionate Doctor Recognition (2011, 2014)
Top 10 Doctor - State (2014)
Medical Oncologist
On-Time Doctor Award (2014)


Dr. Lyss has 15 hospital affiliations:

  • Ste Genevieve County Memorial Hospital 
  • St Lukes Hospital 

> > > > Dr. Alan Lyss, MD

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Additional Information
Dr. Alan P Lyss MD is a male Internist, has 36 years of experience and practices in Internal Medicine and Medical Oncology.
Where does Dr. Alan P. Lyss practice?
Dr. Alan Lyss has 1 office location.
Dr. Alan Lyss practices Internal Medicine and Medical Oncology near Saint Louis, MO.
See Saint Louis Internists and Saint Louis Oncologists.