Summary

Dr. William Janssen specializes in pulmonology and internal medicine, bringing 28 years of clinical experience to his practice. He earned his medical degree from Ohio State University College of Medicine & Public Health, where he developed his expertise in treating complex respiratory and internal medical conditions. Dr. Janssen is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Based in Denver, Colorado, Dr. Janssen focuses on treating serious kidney conditions, including chronic kidney disease and advanced kidney failure. He also manages hypertensive emergencies when blood pressure reaches dangerous levels. His diagnostic capabilities include chest imaging through fluoroscopy and X-rays, and he performs therapeutic hypothermia procedures when patients need controlled body temperature management. Patients have given Dr. Janssen an average rating of 1.0 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 1
  • 28 years of experience
  • 8 insurance plans accepted
  • speaks English, Spanish
  • Ohio State University College Of Medicine & Public Health
  • 1 written review
  • 3 specialties
  • 5 areas of expertise
  • 1 office location
  • Male

Patients’ Perspective

  • Flexible scheduling

Office Location

Main Campus

1400 Jackson StDenver, CO 80206
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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William Janssen, MDDr. Kevin Holland DepnerDr. Elizabeth Marie Arnal-CamposDr. Thomas J Hazy
PulmonologyInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients
28 Years of Experience 9 Years of Experience 26 Years of Experience 43 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish
Denver , CODenver , COCentennial , COWestminster , CO
Med School: Ohio State University College Of Medicine & Public Health Med School: Case Western Reserve University School Of Medicine Med School: University Of Miami Leonard M Miller School Of Medicine Med School: University Of Illinois At Chicago College Of Medicine
Current Profile
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Insurance Plans Accepted by William Janssen

  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - PPO
  • Cigna
  • Medicaid
  • Medicaid - Medicaid
  • Medicare
  • Medicare - Medicare
  • UnitedHealthcare

Medical Specialties

William Janssen has the following 3 specialties

Specialty Expertise

William Janssen has the following 5 areas of expertise

  • Critical Care Medicine (im)
  • Internal Medicine
  • Pulmonary Critical Care Medicine
  • Pulmonary Disease
  • Pulmonologist

Certifications, License, & Education

28 Years Experience

William Janssen holds an active medical license in the state of Colorado.

Medical License

Medical Doctor with an active medical license in the state of Colorado that expires in 2027.

Education & Training

Medical School

Graduated from Ohio State University College Of Medicine & Public Health in 1998.

NPI Number

William Janssen's NPI number is 1811905367.

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Frequently Asked Questions

What languages does William Janssen speak?
William Janssen speaks English and Spanish.
Does William Janssen accept my insurance?
You can see the insurance plans that William Janssen accepts on their Vitals profile.
How can I make an appointment with William Janssen?
You can find contact information for William Janssen here on Vitals.
Is William Janssen accepting new patients?
William Janssen is accepting new patients on Vitals. View William Janssen's profile on Vitals to make an appointment.
Where is William Janssen's office located?
William Janssen's office is located at 1400 Jackson St, Denver, CO, 80206.

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