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Dr. William Janssen Is this you?

About Dr. William Janssen

Dr. William Janssen, MD is a Doctor primarily located in Denver, CO, with other offices in Englewood, CO and Aurora, CO (and 1 other location). He has 15 years of experience. His specialties include Pulmonary Disease, Critical Care Medicine and Internal Medicine. Dr. Janssen is affiliated with Swedish Medical Center, University of Colorado Hospital and Presbyterian St. Luke's Medical. He speaks English.

Rating Overview

1 Rating with 1 Comment

The overall average patient rating of Dr. William Janssen is Bad. Dr. William Janssen has been rated by 1 patients. From those 1 patients 1 of those left a comment along with their rating. The overall rating for Dr. William Janssen is 1.0 of 5.0 stars.

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Primary Address

1400 Jackson St
Denver, CO 80206
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5200 Dtc Pkwy
Englewood, CO 80111
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12605 E 16th Ave
Aurora, CO 80045
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4200 E 9th Ave
Denver, CO 80220
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Dr. William Janssen has the following 3 specialties

  • Pulmonary Disease

    A pulmonologist is a physician who specializes in the diagnosis and treatment of conditions related to the lungs and respiratory tract.
    These specialists are similar to critical care specialists in that their patients often require mechanical ventilation to assist their breathing.
    Pulmonologists diagnose and treat patients with conditions such as asthma, cystic fibrosis, asbestosis, pulmonary fibrosis, lung cancer, COPD, and emphysema. Exposure and inhalation of certain toxic substances may also warrant the services of a pulmonologist.
    Some of the tools and tests pulmonologists use to diagnose a patient are a stethoscope in order to listen for abnormal breathing sounds, chest X-rays, CT scans, blood tests, bronchoscopy, and polysomnography.

  • Critical Care Medicine

    Also sometimes referred to as intensivists, critical care specialists are physicians with specialized training in the diagnosis and management of life-threatening conditions. Some of these conditions affect vital organs like the heart and lungs, those that make breathing difficult or impossible, and those that affect entire organ systems, like the renal system.
    Critical care specialists are typically found in a hospital's intensive care unit where they monitor patients with life-threatening conditions and make determinations as to the best course of treatment.

  • Internal Medicine

    An internist is a physician who focuses on the diagnosis and treatment of conditions that affect the adult population—both acute and chronic.
    These doctors are often who adults see as their primary physicians because they treat a broad range of illnesses that do not require surgical or specialist interventions. They also work to help a patient maintain optimal health in order to prevent the onset of disease.
    In addition to treating the common cold and flu, internists also treat chronic diseases like diabetes and heart disease.

  • Specialty Expertise

    Dr. William Janssen has the following 5 expertise

  • Asthma
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Dyspnea
  • Inflammation
  • Sepsis (Blood Poisoning)

Dr. William Janssen has 2 board certified specialties

See the board certifications this doctor has received. Board certifications provide confidence that this doctor meets the nationally recognized standards for education, knowledge and experience

Board Certifications

Dr. William Janssen is Board Certified in 2 specialties

See the board certifications this doctor has received. Board certifications provide confidence that this doctor meets the nationally recognized standards for education, knowledge and experience.


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No Bedside Manner, No Experience with Chronic Pain Patients & Medication Required

My most memorable experience was that during my difficult stay in the ICU, Dr. Janssen took me off of the medication that has controlled my significant neck and back pain for the last 7 years. Pain resulting from slipping, falling, and breaking my neck in 6 places. Since then I have had 2 spinal surgeries which have also resulted in additional pain. While in the ICU, the pain was excruciating and the physical withdrawal made everything that much worse. Not knowing anything about chronic pain and its effects on the body, Dr. Janssen decided to not only change my medication while in ICU, but he called my pain doctor, without authorization, and attempted to convince him to modify my medication moving forward. Thank goodness my treating physician continued my treatment as it had been in the past. However, if my Doctor had not believed in his own decisions, Janssen would have succeeded in making me live day to day in unrelenting and excrutiating pain that would have kept me from enjoying life, and ensuring that I would be incapable of getting out of bed. If you have a choice, please utilize it and choose a different doctor.

Wait time
5 minutes
Easy Appointment
Friendly Staff
Accurate Diagnosis
Bedside Manner
Spends Time with Me
Appropriate Follow-up
Full Review Rating Breakdown
  • Hospital Affiliations

    Dr. Janssen is affiliated (can practice and admit patients) with the following hospital(s).

  • Swedish Medical Center
  • University of Colorado Hospital
  • Presbyterian St. Luke's Medical
  • Sky Ridge Medical Center
  • National Jewish Health
  • Rose Medical Center
  • Denver Health Medical Center
  • Community Memorial Hosp-Menomonee
  • Education

    15 Years Experience

  • The Ohio State University

    Graduated in 1998

  • Accepted Insurance

    Please contact the office for more information.

Locations & Directions

  • Similiar Doctors

    Dr. William Janssen is similar to the following 3 Doctors near Denver, CO.