Dr. David A Janssen, MD



Internal Medicine     -  Missouri,  Saint Louis

 Overview

Dr. David A Janssen, MD works in Saint Louis, Missouri is a specialist in Internal Medicine, Infectious Disease Medicine and graduated Indiana University School Of Medicine in 1988. Dr. Janssen is affiliated with Saint John's Hospital - Springfield, Saint Johns Mercy Hospital, Saint Johns Mercy Medical Center and practicing for 35 years

 Specialties

  • Internal Medicine
  • Infectious Disease Medicine

 Conditions

• Bacterial Septicemia
• Food Allergy - Buckwheat
• Hypersomnia
• Intraoperative Radiation Therapy (IORT)
• Keratoconus
• Langerhans Cell Histiocytosis

 Procedures

• Genetic Counseling Services
• International Travel Prophylactic Medication
• International Travel Vaccination

 Years Since Graduation

  • 35

 State License

  • Missouri

 Education & Training

Medical School

Indiana University School Of Medicine

Indianapolis, IN, United States

Graduated: 1988

Residency Hospital

St Vincent Hospital

Indianapolis, IN, USA

Year completed: 1991

Fellowship Hospital

University Of Michigan

Ann Arbor, MI, USA

Year completed: 1993

 Awards

1   ACP
2   AMA

 Dr. Janssen Reviews

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 Office Locations


Primary location

 St John's Mercy Medical Center
621 South New Ballas Road Suite 7018B
Missouri (MO)
Saint Louis
63141
 Phone:(314) 251-4949
Additional data:
Free Standing Surgery Center?    No
Office Volume:    20 patients per day
Performs Procedures On Site?    No

Accepting New Patients

  • Yes
* Please verify this information when scheduling an appointment.

 Map & Directions



St John's Mercy Medical Center, 621 South New Ballas Road Suite 7018B, Saint Louis, Missouri (MO), 63141




 Insurances Accepted (check insurance plans)

  • Aetna
  • Aetna HMO
  • Anthem Blue Cross Blue Shield
  • Blue Access Choice PPO
  • Blue Card PPO
  • Blue Cross Blue Shield
  • Blue Preferred HMO
  • Choice Care PPO
  • Choice Plus POS
  • Choice Plus POS II
  • Cigna
  • Cigna HMO
  • Cigna PPO
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • First Health (Coventry Health Care) PPO
  • Great West Healthcare-Cigna PPO
  • Group Plan PPO
  • Humana
  • Medicare
  • Medicare MCR
  • MultiPlan
  • MultiPlan PPO
  • Open Access
  • Options PPO
  • PHCS Network PPO
  • UnitedHealthCare

* Please verify this information when scheduling an appointment.

 Blog Posts

Blog Posts for Dr. David A Janssen, MD are not present.

 Patients Questions

Patients questions for Dr. David A Janssen, MD are not present.

 Affiliated Hospitals


Saint John's Hospital - Springfield photo


Saint John's Hospital - Springfield

1235 East Cherokee Missouri MO, Springfield, 65804

Saint John's Hospital - Springfield is a non-profit hospital located in Springfield, MO. Procedures/Diagnosis costs are at the state average in 14 of 14 procedures. Length of Stay is shorter than the state average in 3 of 14 procedures.



Saint Johns Mercy Hospital photo


Saint Johns Mercy Hospital

901 East 5th Street Missouri MO, Washington, 63090

Saint Johns Mercy Hospital is a non-profit hospital located in Washington, MO. Procedures/Diagnosis costs are at the state average in 6 of 6 procedures. Length of Stay is shorter than the state average in 2 of 6 procedures.



Saint Johns Mercy Medical Center photo


Saint Johns Mercy Medical Center

615 South New Ballas Road Missouri MO, Saint Louis, 63141

Saint Johns Mercy Medical Center is a non-profit hospital located in Saint Louis, MO. Procedures/Diagnosis costs are at the state average in 14 of 14 procedures. Length of Stay is at the state average in 11 of 14 procedures.



  •  Latest reviews for Internal Medicine specialists

  • Dr. C. is a pleasant, professional caring and fun doctor. Answered all my questions on a keep it simple level and explained everything. He took his time. I will refer them when needed. What a great group!
    07 February 2024
    (6)
  • He is the best if you need help with panic attacks. He fixed up my medication and I feel better.
    31 January 2024
    (40)
  • Dr. Jungblut and staff are all professional, fun, conscientious. Been going here for a long time. My children and grandchildren now see Dr. Jungblut too.
    24 January 2024
    (7)
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