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Edit this profileWhere to find William J. Janssen, MD
- Denver location main office
1400 Jackson St, Denver, CO 80206 - Aurora location
12605 E 16th Ave, Aurora, CO 80045
About Dr. Janssen
William J. Janssen, MD is a healthcare provider in Denver, CO specializing in pulmonary disease. William trained at Ohio State University College of Medicine, graduating in 1998. William is also listed as specializing in critical care medicine. This provider record is associated with NPI 1811905367.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (303) 388-4461
- Email not available
Practice Locations
1400 JACKSON ST
Denver, CO 80206
12605 E 16th Ave
Aurora, CO 80045
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other lung specialists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 20 related providers in 3 groups
Other lung specialists in Denver 5
Same specialty, same city.
Trained at Ohio State University College of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Ohio State University College of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Janssen?
Dr. Janssen is a lung specialist in Denver, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
What is Dr. Janssen's address?
Dr. Janssen is listed at 1400 Jackson St, Denver, CO 80206. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Janssen?
The number on file is (303) 388-4461. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Janssen?
Dr. Janssen's National Provider Identifier is 1811905367. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Janssen train?
Dr. Janssen attended Ohio State University College of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Janssen have?
Dr. Janssen has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Janssen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Janssen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.