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Edit this profileAt a glance
- 4630 Singing Hills Blvd, Suite A, Sioux City, IA 51106
About Dr. Nielsen
Mark W. Nielsen, M.D. is a healthcare provider in Sioux City, IA specializing in thoracic surgery (cardiothoracic). This provider record is associated with NPI 1922056894.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (712) 271-8346
- Email not available
Practice Locations
4630 SINGING HILLS BLVD SUITE A
Sioux City, IA 51106
Common questions
What does Mark W. Nielsen specialize in?
Mark W. Nielsen is a thoracic surgery (cardiothoracic) in Sioux City, IA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mark W. Nielsen located?
Mark W. Nielsen is listed at 4630 Singing Hills Blvd Suite A, Sioux City, IA 51106. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark W. Nielsen's phone number?
The number on file is (712) 271-8346. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark W. Nielsen's NPI number?
Mark W. Nielsen's National Provider Identifier is 1922056894. 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
How long has Mark W. Nielsen been practicing?
Mark W. Nielsen has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Mark W. Nielsen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark W. Nielsen. If this is you, claiming it is free.
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