Summary

Dr. Janssen graduated from the Indiana University School of Medicine in 1988. He works in Saint Louis, MO and 2 other locations and specializes in Infectious Disease and Internal Medicine. Dr. Janssen is affiliated with Mercy Hospital Saint Louis, Kindred Hospital Saint Louis South, Mercy Heart And Vascular Hospital Saint Louis and Mercy Heart And Vascular Hospital Saint Louis.

Quick Facts

  • 4
  • 38 years of experience
  • speaks English
  • St Vincent Hospital Health Center
  • 2 written reviews
  • 2 specialties
  • 8 areas of expertise
  • 4 hospital affiliations
  • 3 office locations
  • Male

Patients’ Perspective

  • Spent time with me
  • Provided follow-up after the visit
  • Flexible scheduling

Office Locations

Dr. David Alan Janssen has 3 locations

Mercy Hospital Saint Louis

615 S New Ballas RdSaint Louis, MO 63141

Mercy Heart And Vascular Hospital Saint Louis

625 S New Ballas RdCreve Coeur, MO 63141

Mercy Hospital South

10010 Kennerly RdSaint Louis, MO 63128

Compare with Similar Doctors

Dr. David Alan Janssen, MD
Dr. Omer M Badahman, MD
Dr. Farid Ghassan Sadaka, MD
Dr. April Loretta Thebeau, DO
Dr. David Alan Janssen, MDDr. Omer M Badahman, MDDr. Farid Ghassan Sadaka, MDDr. April Loretta Thebeau, DO
Infectious DiseaseInfectious DiseaseCritical Care MedicinePediatrics
Accepts New Patients Accepts New Patients
4 
3.8 
1 
3.8 
38 Years of Experience 31 Years of Experience 27 Years of Experience 23 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks Arabic, English, Spanish Speaks English, Spanish Speaks English, Spanish
Saint Louis , MOBelleville , ILSaint Louis , MOCreve Coeur , MO
Med School: Indiana University School Of Medicine Med School: St Georges University School Of Medicine Med School: American University Of Beirut Faculty Of Medicine Med School: Kansas City University Of Medicine & Bioscience College Of Osteopathic Med
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. David Alan Janssen

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. David Alan Janssen has the following 2 specialties

Specialty Expertise

Dr. David Alan Janssen has the following 8 areas of expertise

  • AIDS/HIV (Acquired Immunodeficiency Syndrome)
  • Fever
  • Hepatitis C
  • Human Immunodeficiency Virus (HIV/AIDS)
  • Immunization
  • Infection
  • Internal Medicine
  • Vaccination

Certifications, License, & Education

38 Years Experience

Dr. David Alan Janssen holds an expired medical license in the state of Missouri.

Medical License

PositionStateYearStatus
Medical DoctorMissouri2026Expired

Education & Training

Residency

Completed their residency at St Vincent Hospital Health Center.

Medical School

Graduated from Indiana University School Of Medicine in 1988.

NPI Number

Dr. Janssen's NPI number is 1700995339.

Similar doctors

Frequently Asked Questions

Which hospitals is Dr. David Janssen affiliated with?
Dr. David Janssen is affiliated with Mercy Hospital Saint Louis, Kindred Hospital Saint Louis South, Mercy Heart And Vascular Hospital Saint Louis, and Mercy Heart And Vascular Hospital Saint Louis.
Does Dr. David Janssen accept virtual/telehealth appointments?
Dr. David Janssen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. David Janssen?
You can find contact information for Dr. David Janssen here on Vitals.
What languages does Dr. David Janssen speak?
Dr. David Janssen speaks English.
Is Dr. David Janssen accepting new patients?
Dr. David Janssen has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.